My problem is under hard acceleration and the engine has to downshift to second gear or third (only has a problem in these two) the engine will downshift and rev. 05 pass or right around there. 0/6L80E so similar. Downshifts are soft and so are the upshifts. Old-school engine tuning of carbureted engines was really an art form. 6L80e TRANSMISSION Winters CABLE BRACKET. It can also show up as a flair on the 2-3 shift hot. The latest Rev he sent me has the transmission downshifting into first gear before the vehicle comes to a complete stop. Flashpaq, the world's best-selling performance programmer, makes tuning easy! Add horsepower and torque in minutes without turning a wrench. When the TCC solenoid receives a signal from the engine control module (ECM), it opens a passage in the valve body and hydraulic fluid applies the TCC. Standard tuning practices used on 4A don't work. New cam, valve springs, timing chain, ZL1 Converter and long tubes. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. 27 sec for normal, but i control the shift time using shift time adders/inertia adders, so i can remove some time from the shift past 4500rpm. If anyone comes to race me, they all usually beat me. And from what I've read people are really happy with the fix. What is happening is this: When the transmission has warmed up, and you're going generally over 50mph, but sometimes slower, when coming to a stop the truck will surge and try to pull for a brief moment. It has the trailer tow mode operated by the button on the end of the shifter stalk. 6l80 tap shift switch box 6l80 tap shift switch box. As such I never bothers to stay up on tuning them like the engine, I had no need. This was very annoying and you can imagine how loaded the trans and truck was when trying to accelerate about 30mph, after slowing down. How to Adjust the Shift Linkage on an Automatic Transmission? If you hear buzzing, humming, or whining from the car or if there is a delayed response from the car transmission. Basic 6L80e/6L90e tuning guide. 75) for quicker acceleration, and increased cruising speed fuel economy Featuring a compact design, this versatile 6X six-speed automatic transmission is able to handle up to 850 HP, and fits Small Block Chevy, Big Block Chevy and GM LS. There're two sets of rotating clutches, C1 and C2. Outer Pressure Regulator Sleeve F-68942-TL6 & VB-FIX 68942-06 • Harsh, bumpy or flare 1-2/4-5 Shifts • Slipping gears 8. The inTune i2 is the perfect companion to any vehicle, within minutes you could add 15+ Horsepower and 20+ torque no tools required. Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and technical help. I will hook up the Laptop next time I tow and see. Now that I have the tap shift all wired up to the trans I am trying to figure out how to set my. Even at stock horsepower levels, Circle D reports that properly tuning the 6L80E is critical to transmission longevity. A6 Trans Questions ** UPDATE ** This is my first auto in a performance car in 18 years, I know, that's a long time. Rev-matched downshifts are awesome. 2019 SS 10 spd shifting problem Ask the Camaro Team. Upgrade your stock automatic transmission shifter to an accurate high performance shifter from JEGS. This is a company with a portfolio full of nice works for marks like Bentley, Porsche and Rang Rover, but. Mods: Kooks Stepped headers/high flow cats/h-pipe Cold Air Inductions intake Ported TB UD Pulley 160 Tstat ECM/TCM tuning at least 6 times, adjustments. TT (Mk3) Discussion - TT RS Manual Downshift to First - Is there any harm in downshifting to first when coming to a stop? I love the sound especially in sport mode wish the car had more gears to hear the notes longer. Upgrading GM 4L70E Transmissions Via Gearstar. I don't believe they will ever make a good performance transmission due to the design. 6L80E 6L90E T43 TCM Transmission Connector Pigtail for GM 6-Speed Automatic Transmissions. The engine drops to about 500 RPM then disengages 3rd. I have a 2011 Silverado 5. It's steadily evolved from the simple Oldsmobile Hydra-Matic introduced in the 1940's (the first fully automatic transmission ever) to the simple yet effective style of the 2-speed Powerglide of the 1960's, and finally into the smooth as silk, but tough as nails electronically controlled 4LXX. com FREE DELIVERY possible on eligible purchases. "6L80e Technical specs. If you are serious about hard launches with your 6l80E powered C6 Corvette this is a must have. Since I did not have much previous experience tuning the 6L80E transmissions before messing with this car I used the The Tuning Schools GM A6 6L80E tuning guide as a point to start from. The COMPUSHIFT Sport and Pro are the next generation in technology from the industry leader in Automatic Transmission Controllers - HGM Electronics. LS engines will work with any older GM trans with some considerations. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. This is where further custom tweaking comes in. BURN UP 2/-4-5-6 CLUTCH. I started out with an 87 tune and a firm shift tune on the silverado, since I always liked that on the Yukon. Now has about 34K miles on it but has done the following since new: Works fine when NOT towing trailer in trailer tow mode, i. been working on this truck for 8 years and its still not done lol. 2007 Escalade Ext, and whenever im just driving around at 50 and i step on the gas, the truck doesnt downshift how its supposed to. 0 gas engine and 6 speed auto. 8L (1994) Lumina V6-191 3. 3, she sure did sound bad ass. FiTech Go Shift Transmission Controller for GM 4L60/65/80/85E & Ford 4R70W, AODE. I'm also going to do a bit deeper dive into the programming side of it in the next few. The COMPUSHIFT Pro is our flagship transmission controller and can manage transmissions with 4, 5, 6 or more gears. If you put the gear selector in M 6L80 Tuning 1st Gear Downshift issue. Hurst 6l80e shifter. Typically it's worst when it's cold but does it pretty consistently about 1/3 of the time I accelerate from a complete stop. Car started out with an Air Raid CAI and a Corsa Sport axle back exhaust, base pull was 469 WHP, which Fran says. 6L80e TRANSMISSION Winters CABLE BRACKET. 5x20 toyos on 10 in monsters. It also allows customization of the transmission's behavior with user-friendly software. Link ECU design & manufacture engine control units that are available worldwide. Min Power Downshift - 2-1 Power Min - 3-2 Power Min - 4-3 Power Min - 5-4 Power Min - 6-5 Power Min - 3-1 Power Min - 4-1 Power Min - 4-2 Power Min - 5-3 Power Min - 6-2 Power Min - 6-4 Power Min Hptuners now has all the parameters that Efilive has, plus many more for tuning the 6L80E. Full Billet means both the converter housing and the clutch apply piston are both billet. This is a discussion on a tuning guide i found based on hptuners within the Computer & Tuning forums, part of the LSx Technical Help Section category; PCM Tuning Process Flow 1. Then you have regular grocery getting mode. These closed-throttle downshifts take a while to complete, so if you need to get back on the gas after decelerating in the middle of a shift, you're stuck waiting for the shift to complete before the throttle will. 3L 6L80E, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project. EFI Connection recommends the use of a 1996-newer 4L60E transmission or the services of a professional transmission builder to assist in upgrading the 1995 4L60E with 1996-newer internals. 2006-2007--GMC--Yukon 4WD--8 Cylinders T 5. I did a little homework and found the following for you 07-09 GMT900 owners:Stock H-11 Lo-beam = 1350 lumens, life expectancy = 600-800 hrs, $15 ea. Gen III PCM control goes beyond the engine to be one of best solutions for electronically controlled 4-speed automatic transmissions. MegaShift™ 4L80E Wiring. I did an engine swap on a 2005 Jeep JK , i installed a 6. Auto Trans(4l60e 4l65e 4l70e) - Free ebook download as PDF File (. It shifts REALLY early and slow to downshift, holds a gear way too long when trying to accelerate. Read about the history of GM's iconic Allison 1000 transmission, along with its strengths and weaknesses, only on dieselpowermag. Supported Powertrains We are currently supporting all of the GEN4 GM engines from 2007-2015. ca Base starting Tunes CAL updates available too. 6L80 Six-Speed Automatic This new-gen GM trans is so sophisticated that it has a separate computer (TCM or transmission control module). The TCM receives and monitors various elec-tronic sensor inputs to execute hundreds of calculations and commands every 6. pdf), Text File (. 2ltr 6 speed 6L80E truck with a Magnacharger in a couple of weeksI've yet to touch a 6L80E, the 4L60E is fun to work with, 6L80E looks way. The PSI Paddle Shifter provides upshift and downshift commands to a 6L80E/6L90E. I do it all the time to slow down using engine compression instead of brakes. When the solenoid fails or has any issues, it can cause problems with the vehicle's shifting. com You are browsing camaro5. From youth soccer moms to speed-demon dads, our focus is on providing quality transmissions and quality experience at an awesome value. He may have told you he couldn't tune it out because these transmissions are very finicky with regard to their tuning, and if you yank out the torque management that causes the delay and safeguards the transmission without knowing what you're doing, you're going to burn it up fairly quickly. In addition, Toyota and Honda will …. This is where further custom tweaking comes in. Re: Here's what's gonna break on your 5th gen Also keep in mind the article was first published in June 2011 (I have the hard copy at home), which means it was probably written in December 2010. Transmissions can be programed from nearly any windows computer(see specifications below). It's like it thinks for a second before it downshifts. :thumbs: I've been wanting to do this since purchasing my H3, but just the other day my transmission bit the dust when the radiator trans cooler decided to give out internally! I figured now was as good of time as any to actually get this project up. Yeah thats why i run it in third my buddy has a 04 sierra with 60k on it and is able to pull the same load at 75 without any downshifting both trucks are bone stock with 3. The two companies jointly licensed certain elements of the 10-speed clutching system from ZF TRW (which does not yet offer a 10-speed transmission), most of them pertaining to the driveline supplier’s broad range of clutch-technology patents. 7 out of 5 by 53. During a 4-3 downshift, 4th clutch fluid exhausts from the 4th accumulator assembly. The document ID#1875647 covers 2007 GMC Yukon Denali, Cadillac Escalades & 2006 Corvettes with a 6L80 transmission. The transmission should downshift into 1st gear at speeds below approximately 45-56 km/h (28-35 mph). The TCM-2800 will also allow the use of paddle shifters and ability to have Drive or Sport with a tap up or down shift as the OEM 6L80 has. Hydra-Matic 4L65-E is a heavy-duty automatic transmission designed to harness performance engines on the street and strip. They also have MUCH more complex electronic controls and the controller is internal to the transmission. 3, 6 speed) with 53,000 to the dealer late last week and took a ride with the service tech for a solid clunking noise when braking. Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and technical help. it runs GEN 3 electronics, Basically is runs a 24 tooth crank trigger and a different cam trigger and different knock. 3L and 6L80 and it too behaves like a 16 yo kid downshifting a manual transmission (using the clutch properly) 3 to 2 and 2 to 1 as his truck comes to a otherwise casual stop. with the 3. I have an 08 Suburban 3/4 ton, with 6. The numbers you are reading are probably fixed numbers. NNBS 4L60E to 6L80 swap questions. Performance torque converters and transmission torque converter replacement for cars and trucks from RevMax Performance Converters. I'm using a combination of shift speed time and trans TM to control wheel spin. These include Toyota, Ferrari, Rolls-Royce, and Hummer. His current duties involve training and advising our retail diagnosticians, as well as assisting in the research and development of our remanufactured products. 2 US Shift Transmission Control System instruction and operation manual. So, odd with a 2-1 "down shift" set at 28 mph that around 50% of the time at around 18-22 MPH while going WOT the TCM would shift to the bottom of 2nd, rather than around higher up in 1st. 2 tune files and the auto tune is about 80% different almost everything to do with shift time, pressure, speed, rpm, upshift, downshift, converter, and all related tables are different, and the 2016 LS3 and 2017 LSA autos have about 80% changes again compared to eachother. The ZF operates somewhat different to a traditional auto transmission. Both transmissions have pan to ground clearance issue when installed in older cars, and you'll want to look into a GTO 6L80 pan for the 6L80 to get a little more ground clearance. They are strange, complicated, and misunderstood. As I stated earlier, it is a completely different class of machine. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. However, the 4-speed automatic uses a throttle-valve (TV) cable as opposed to using a modulator to sense engine load like that found in the TH350 and TH400. 2006-2007--GMC--Yukon 4WD--8 Cylinders T 5. They are asking $5000 for the set. 3, she sure did sound bad ass. Road tuning is an important tool for any tuner to have in his or her skill set, and even with access to a dyno, we still recommend that every tune is checked and confirmed on the road. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. I have more fine tuning to do, but this is true for both the ECM and TCM. The Nissan L series of automobile engines was produced from 1967 through 1986 in both inline-four and inline-six configurations ranging from 1. 20 sec, the trans would shift too hard for my taste at any point in the rpm. The engine drops to about 500 RPM then disengages 3rd. Engine braking is an option. LS engines will work with any older GM trans with some considerations. Basically the longer the driveshaft the louder it sounds, kinda of like a big tuning fork. PATC builds GM performance transmissions in many levels. The reason we are getting two blips, the first one putting the clutch in is that it is anticipating an up shift, and is just keeping the revs form dropping any lower than they would be once you select the next highest gear. If you're considering utilizing a factory intake, injectors, and cable operated throttle body, with a 4L60, 4L65, 4L70, or 4L80 GM transmission, FiTech's Ultimate LS standalone self-learning ECU with transmission control will get your engine ready for optimal performance. 55 gearing and 3spd auto, it does 60mph loaded, up hills just sitting at 2000rpm. LSx, LS1, LS2 LS7 GM Performance & Technical Information. If I am cruising from 40 to 45 MPH and do a quick Wide open accelleration the transmission downshifts to 1st gear hits the RPM shift point of 5900 and then shifts to second gear instead of just shifting into second gear. The 6L80 – the only transmission offered on the STS-V – is one of the most technologically advanced automatic transmissions in the industry, using clutch-to-clutch operation and an advanced integrated 32-bit transmission controller to deliver smooth and precise shifts. This was very annoying and you can imagine how loaded the trans and truck was when trying to accelerate about 30mph, after slowing down. I drive it conservatively and I am the only owner so I know it hasn't been trashed or abused. Common Chevy Suburban Transmission Problems. 1L VIN T MFI (1993) See All. Also, if I'm cruising in 6th on a two-lane road and gun it to pass, there's a (again) VIOLENT clunk on the down-shift. 2007 Escalade Ext, and whenever im just driving around at 50 and i step on the gas, the truck doesnt downshift how its supposed to. The 6L80 uses a trans controller that is lightning fast and is actually mounted within the trans pan attached to the valve body. Horsepower is work done over time, and torque is simply twisting force. To improve off the line performance for both towing and spirited driving, a wider 7. If the trans is in the middle of a downshift when coasting, it will lock out the throttle completely until the shift is complete. Hello all, I was wondering how difficult it is to do a transmission swap. a tuning guide i found based on hptuners. Just read the owners manual and the Camaro rev matches in both up shifts and downshifts. Late shifts, downshift clunk, 3-4 clutch failure, no lockup, 2-4 band failure, early shifts, 1-2 slide/bump, 2-3 cut loose; reverse clutch failure, 83-87 lets you make T. I have seen a lot of improvement in drivability, power and fuel economy. New cam, valve springs, timing chain, ZL1 Converter and long tubes. I decided to use an a/w intercooler, I'm curious how it'll perform. Every gear works fine except for first, it will downshift into first but there is no engine braking it just coasts until you touch the throttle then the RPMs rise and it acts like it should until you let off again or until it coasts fast enough to get into 2nd. A V-8 finally makes its way under the H3's hood in the Alpha model. but it looks fucking beautiful and i couldnt of done it without this club. I could swap the trans in an afternoon. Maybe with having the diesel motor they should have came up with a different transmission or changed the programming. Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and technical help. Entered VIN must match the VIN in the ECM. The changes you have planned sound good. Need some pionters on 6 Speed 6L80E Transmission Can someone share some pointers on 6L80E transmission tuningLike what to focus on & what to stay away from Going to be working on a 2011 Silverado 6. The 4 speed doesnt always downshift when you need it to due to the gear spacing. so i have the base set to. I used the stock manifold, flipped it, used a 2 into 1 Y collector, feeding into the T76. A lot of different tables compares to a 4l60 file which I have no issues getting to shift hard at WOT. txt) or read book online for free. Can't speak for other transmissions, but you won't hurt a 6L80E or WA580 transmission using manual mode in any way you like (assuming you haven't remove ALL TM via tuning, and still, this trans can take a lot more torque than what a JK. Ok so I know I said to run a 07 and newer Gen 4 engine. All 6L80 questions answered by experts. Jump to Latest Follow 2010 Silverado ECRB LT2 5. ToddH-2500HD wrote: PSWired wrote: I have been happy overall with the 6L80e. Taking up residence in the engine bay is the OHV 5. By creating broader apply area to the clutches, the clutch plates. " The Hydra-matic 6-Speed RWD is a fully automatic, six-speed, rear-wheel drive, electronic-controlled transmission. This didn't seem to change the feel at all? I know with the 4l's you would change the shift times and pressures to get a. If anyone comes to race me, they all usually beat me. Gear indicators are covered under a 12-month warranty from the date of purchase. A lot of different tables compares to a 4l60 file which I have no issues getting to shift hard at WOT. The second is a PCS unit dubbed the TCM2650 that will manage the GM 6L80E family of transmissions. I have been running a L92- 6l80 combo in my buggy for 2 years now and I have finally wired up a switch, shifter combo to work with tap shift ( I used RADesigns winters shifter kit, awesome setup). Programmable Transmission Controller Transmission Computer TCM-2000 Discontinued!! Superceded by the TCM-2800. Upgrade your stock automatic transmission shifter to an accurate high performance shifter from JEGS. 84 and the 2nd gear for a 1. I have been skeptical for years about putting a tune in my 09 GMC 1/2 Ton HD (6. I think you are going to be impressed with the way it drives after the TCU tune. GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout. I think the problem mostly is that the. TSB Seems To Fix 8-Speed Automatic GM Transmission ProblemsAugust 13, 2019 Multiple GMC Acadia Owners Report 'Shift To Park' Issue December 13, 2019 GMT 900 GMC, Chevy Vehicles Subject To. The paddle shifter is available in either Black or Polished for 5/6-bolt or 9-bolt steering columns. Now that I have the tap shift all wired up to the trans I am trying to figure out how to set my. The new eight-speed gearbox is a Hydra-Matic 8L45, which GM says is “roughly the same size and weight as the 6L80 six-speed automatic it replaces” so the new truck’s curb weight and payload. It makes use of three speed sensors that provide for en-hanced shift response and accuracy. 2 truck and 6. If not, I would sell the 6L90e and buy a T56. 16, 2018, and built. The PSI Paddle Shifter provides upshift and downshift commands to a 6L80E/6L90E. Just because you don't understand what they do doesn't. com, courtesy of Harry Heng. I posted the tune does anyone have an idea. Full throttle 9. GM - The TCU also needs a connection to the factory distributor. As they stated, they figure out that the temperature of the transmission's forces the sensor to a fail safe mode which removes/disables high gear torque. Playing with my brothers SSVwagone with the 6L80 box and want to firm the shifts up while in Sports and Tap up/down. Read about the history of GM's iconic Allison 1000 transmission, along with its strengths and weaknesses, only on dieselpowermag. I have noticed that when I downshift there is a slight and quick "whine" noise when downshifting. zoolhouse wrote:Everyone, today I walked into the Nissan dealer in regards to this same issue and they are now aware of the problem. Also, if I'm cruising in 6th on a two-lane road and gun it to pass, there's a (again) VIOLENT clunk on the down-shift. The real cost is trying to get it to work with my stock set up. Need some pionters on 6 Speed 6L80E Transmission Can someone share some pointers on 6L80E transmission tuningLike what to focus on & what to stay away from Going to be working on a 2011 Silverado 6. 50/18's! I have all along. Laser cut and plated ready for use. 3, mods are a BullyDog programmer and a single to dual magnaflow and AFE intake and spacer. This condition can be caused by the torque convertor clutch applying during the shift. I recently did a tune up on my truck after rolling 100k miles. 2L(truck, LS3, LS3 480), and blown, cammed, modified versions thereof. The Transfer case is an Atlas 2 which powers a Dana 60 rear axle and a Dana 44 front. downshift tuning so my latest adventure has been to get the downshifts to be smooth almost like stock. Gen 5 Camaro Tuning, Diagnostics, Dyno results; Gen 5 Camaro Racing Tech, Results; Gen 5 Camaro Special Edition Vehicles; VEHICLE SPECIFIC FORUMS. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. Now, when I drop down into 3 / D4, it goes into TUTD mode and I can use paddle shifters at will. The 6L80e is 100% computer controlled. I'm playing with settings to accomplish a good WOT upshift, quick downshift, and smooth regular upshifts with my Trailblazer 5. Mine does down shift if you get on it but a gas motor you kinda want it to down shift to get the rpms up to get into the power band and I understand that in diesels the power band is lower in the rpm range than gas. 8's which are found in Australia and New Zealand delivered vehicles. 1/-3-5-REVERSE CLUTCH. 1; 2 noticed it like when i would be going through an intersection and would only slow down but not enough for the trans to downshift. Even with remote tuning there are the what's now considered 'bad' tuners and excellent tuners. This is a discussion on a tuning guide i found based on hptuners within the Computer & Tuning forums, part of the LSx Technical Help Section category; PCM Tuning Process Flow 1. 75) for quicker acceleration, and increased cruising speed fuel economy Featuring a compact design, this versatile 6X six-speed automatic transmission is able to handle up to 850 HP, and fits Small Block Chevy, Big Block Chevy and GM LS. Automatic Transmission - LS1TECH - Camaro and Firebird Forum Discussion. Turn the overdrive switch to 28. It feels like a bad universal joint, I crawled under the truck and found nothing wrong with the u-joints. On the Street Compared to the SS, the added weight of. The 6L80 uses a trans controller that is lightning fast and is actually mounted within the trans pan attached to the valve body. 8 will simply not comfortably hold the speed limit, it will downshift and rev up going into performance enrichment - PE which is an open loop mode where air fuel ratios near 11:1; so you are dumping fuel into the engine at high rpm's to hold speed. 7L Cummins with the CA Conversions Allison Conversion Kit. I have more fine tuning to do, but this is true for both the ECM and TCM. 50/18's! I have all along. Car started out with an Air Raid CAI and a Corsa Sport axle back exhaust, base pull was 469 WHP, which Fran says. US Shift Electronic Transmission Control Systems let you take charge of your 6R80, 4R70W, E4OD, 4R100, 4L60E, or 4L80E transmission and unlock its true potential. The COMPUSHIFT Sport and Pro are the next generation in technology from the industry leader in Automatic Transmission Controllers - HGM Electronics. Feb 04 2016, 1:55am. When the engine or transmission control unit has recognized a serious faulty parameter from the engine or transmission, the car will go into limp mode. Then you have regular grocery getting mode. The flash while going to N isn't good and that's what I'm trying to work out. i'm looking to see what options or suggestions you may have. This trans is unique within GM passenger car automatics since it is the only one to locate its. The US-produced Ford 6R80 transmission is based on the robust ZF 6HP26 design, which has been used by automakers world-wide for over 14 years. 67 6 spread first to top gear 2013 Ram 8-spd 4. Has some minor wear on the teeth. Tow a 2014 314bhds. John Bullock. It is a heavy-duty version of the 6L80 six-speed automatic, with a strengthened input gearset which has two additional pinion gears for six total, and a strengthened output gearset, that uses wider gears than the. The Transfer case is an Atlas 2 which powers a Dana 60 rear axle and a Dana 44 front. I still find 700r4 getting built. 84 and the 6l80e is 4. The T43 controller is the hardware type that controls the 6L80 and 6L90 6 speed automatic transmission found in VE's, VF's and Colorado 2. They are asking $5000 for the set. This is where further custom tweaking comes in. We have extensive knowledge of the 5. I have a Ram 6. i do have a 700r4 core as well, where i could go with a manual valve body. Performance torque converters and transmission torque converter replacement for cars and trucks from RevMax Performance Converters. I've heard of people break them at 500hp or so but as long as you have a bigger trans cooler and watch your temps it'll last a long time. He may have told you he couldn't tune it out because these transmissions are very finicky with regard to their tuning, and if you yank out the torque management that causes the delay and safeguards the transmission without knowing what you're doing, you're going to burn it up fairly quickly. Soon as I started the truck later on I got a stabilitrak service, traction control service, check engine light, and the manual shift button , tow haul , and gear indicator in cluster not working. Our 2009 LTX started to use oil @ the rate of 1 qt every 1000 miles. This is a discussion on a tuning guide i found based on hptuners within the Computer & Tuning forums, part of the LSx Technical Help Section category; PCM Tuning Process Flow 1. Page 2- 2010 L99/6L80E swap into 95 C1500 Silverado LSx Swaps 2010 L99/6L80E swap into 95 C1500 Silverado - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network Register or Log In To remove these advertisements. WE HAVE DONE A FEW 6L80E BUILDS. The best source for all Dodge, Ram, Chrysler, and Mopar News, Rumors, and Discussion. holy christ, i wasnt expecting that many tables for the trans tuning, thats even more advanced then the 6L80's ive tuned. hopefully i do a turbo build for this truck soon. 0/6L80E so similar. trying to get tap shifting/regular shifting on a 6L80 working when it has a corvette tune and its paired with a truck E38 can certainly be finicky. 2014 Silverado 1500, transmission clunk. There are some quirks- the stock programming does not allow a 6-5 downshift in normal operating mode, it holds 6th until you get to the 6-4 threshold. I only made the trans downshift into 2nd a few times this weekend because going into 3rd seems like it's more than enough! Downshifting into 2nd feels awesome! This kit pulls hard to 6000rpms easily, I'm gonna increase the shift points to see if the cam feels good at 6200rpms, like an NA setup would. Owners not using the LS1 PCM for engine control must look to the aftermarket for a standalone transmission controller that may cost in excess of $1,000. His current duties involve training and advising our retail diagnosticians, as well as assisting in the research and development of our remanufactured products. 8L (1994) Lumina V6-191 3. the noise may also sound like a l. Jump to Latest not because i'm ballsy, but because this trans can take it. pdf), Text File (. I'll post later with more details. A torque converter is the fluid coupling between. GM 4L80E technical information The 4L80E transmission is a four speed automatic with torque converter clutch. There is a solenoid in your GM converter that causes the the torque convertor clutch (TCC) to engage and disengage. It is time to look at the shift linkage of your vehicle. I bought the Range AFM device to shut down the AFM. We have extensive knowledge of the 5. Sloppy Mechanics 12,354. The General Motors 6L80E and 6L90E 6-speed transmissions were introduced in the late 2005 General Motors truck line as a successor to the 4L60E and 4L80E. Stand alone computers for the 6L90e are available around $900. The TCM receives and monitors various elec-tronic sensor inputs to execute hundreds of calculations and commands every 6. It is prudent to identify the issues right away and remedy them or they will harm the transmission. I find the transmission tuning buggy. The 6l80e and gen IV are what i would really want but I think that swap is a little out of my experience level. The key is in the tuning and manual downshifting when at highway speeds. 2007 Escalade Ext, and whenever im just driving around at 50 and i step on the gas, the truck doesnt downshift how its supposed to. so i have the base set to. If you're in six gear and move the shift lever down to the manual mode the transmissions will down shift and this chart below reads it will go down to the 4th gear. 2L 2015-2020 GT350 Mustang by picking up one of our SCT tuning devices paired with Steeda lifetime tunes! Products (Total Items: 3). Pressure is raised by tuning. Similarly, if you compare the GM 6L80 with the 8L90, first is 4. The 6L80/6L90 series trans are LARGE even compared to a 4L80E. 19:1 first gear, a 0. The 01 os always has a harsh 2-1 downshift in my lly (as well as my lb7) , can't modify slip inhibit tables, and lose my high idle. A torque converter is the fluid coupling between. EFILive; HP Tuners; BenchForce™ OBD-II Programming. (We don't share ANY data with ANYONE) We have tons of knowledge here for your diesel truck! Post your own topics and reply to existing threads to help others out! NO ADS!. I have an 08 Suburban 3/4 ton, with 6. 5K ohm resistor and connect to ground. 6L80 Tuning 1st Gear Downshift issue. The problem may be severe. The stock trans tuning will do the same as manually shifting, if it can safely downshift it will, it simply bogs down enough until it can downshift without over revving the motor. They are strange, complicated, and misunderstood. Or you can continue to use the paddles to downshift more or up shift. GM 6L80 Series Transmission Upgrades & Repairs. Like shooting a rifle. LMM Towing Question Mike L's Trans Talk. He may have told you he couldn't tune it out because these transmissions are very finicky with regard to their tuning, and if you yank out the torque management that causes the delay and safeguards the transmission without knowing what you're doing, you're going to burn it up fairly quickly. Many types of no…. 3L with Escalade 6L80 and 3. Bang, bang, bang. Yeah thats why i run it in third my buddy has a 04 sierra with 60k on it and is able to pull the same load at 75 without any downshifting both trucks are bone stock with 3. The only way to retrive trouble codes is with a scanner such as Tech 2 , snap-on, otc or equivelent. Contact Steve at 6l80-90. This allows the driver to focus 100% on braking while simultaneusly downshifting gears. It is prudent to identify the issues right away and remedy them or they will harm the transmission. com, courtesy of Harry Heng. 6L80e TRANSMISSION Winters CABLE BRACKET. GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout. These include Toyota, Ferrari, Rolls-Royce, and Hummer. If this table is not in use, the Engine Braking downshift will be taken from the base shift pressure table(s). 3L aluminum small-block with 300 hp teamed up with the General's venerable. BMW's upcoming 2 Series Gran Coupe looks to be a fun. They are designed and built with OEM quality in mind while still being. During a 4-3 downshift, 4th clutch fluid exhausts from the 4th accumulator assembly. they made my. i do have a 700r4 core as well, where i could go with a manual valve body. if i set the base shift times below. They are strange, complicated, and misunderstood. ToddH-2500HD wrote: PSWired wrote: I have been happy overall with the 6L80e. just a small list of things to do left. EFILive; HP Tuners; BenchForce™ OBD-II Programming. My problem is under hard acceleration and the engine has to downshift to second gear or third (only has a problem in these two) the engine will downshift and rev. com You are browsing camaro5. The car is a 2019 2ss w/manual trans. Gen 5 Camaro Tuning, Diagnostics, Dyno results; Gen 5 Camaro Racing Tech, Results; Gen 5 Camaro Special Edition Vehicles; VEHICLE SPECIFIC FORUMS. The outer cover is circular and is held in place by a snap ring. The COMPUSHIFT Pro is our flagship transmission controller and can manage transmissions with 4, 5, 6 or more gears. We have been doing tuning for a very long time and really have these LS engines dialed in for the JK. Find Shifters, Automatic Transmission with Cable operated Shifter Style and 6L80E Transmission Type and get Free Shipping on Orders Over $99 at Summit Racing!. GM states, ". PCM Diagnostics & Tuning - PCM tuning and diagnostics for GM LS1, LS2, LS3, LS6, and LS7 V8 engines discussion, how-to guides, and technical help. CAC is a Banks with 3 inch boost tubes. Looking for a manual but finding the right color/price combo within a thousand miles of GA has been a bust. Outer Pressure Regulator Sleeve F-68942-TL6 & VB-FIX 68942-06 • Harsh, bumpy or flare 1-2/4-5 Shifts • Slipping gears 8. Have had it into the dealer 6 times for the harsh down shift on rapid deceleration. The ZF operates somewhat different to a traditional auto transmission. The Winters supplied 4L80e bracket needs modified extensively. Gen 5 Camaro Tuning, Diagnostics, Dyno results; Gen 5 Camaro Racing Tech, Results; Gen 5 Camaro Special Edition Vehicles; VEHICLE SPECIFIC FORUMS. Come ride in my Truck that comes on strongest from 3,500-6,000 rpm. Facebook is showing information to help you better understand the purpose of a Page. This is not a plug and play setup. 66rfe vs 68rfe Discussion in 'Heavy Duty' started by mtofell, Nov 14 It's gotten to the point where it waits so ridiculously long to downshift that the truck starts to convulse and shake like it's going to die. I know on my 6l80, I was able to raise and lower the upshift and downshift speeds plus shift pressures and speed. 3 with the 6L80E trans. 4l 3v 6r80 harsh 1-2 upshift, bump while tsb 09-11-5 coasting low speed downshift, harsh downshift to 4th gear—intermittent p0741. part way thru a ls swap (gen 1 pcm). Since every LS engine swap is a little different and there are lot of choices to be made, you can use this guide as a reference for ideas and part numbers as you move through the process. far too many mods to name. When slowing, the trans. Basically the longer the driveshaft the louder it sounds, kinda of like a big tuning fork. 2L 2015-2020 GT350 Mustang by picking up one of our SCT tuning devices paired with Steeda lifetime tunes! Products (Total Items: 3). The inTune i2 is the perfect companion to any vehicle, within minutes you could add 15+ Horsepower and 20+ torque no tools required. 27 sec for normal, but i control the shift time using shift time adders/inertia adders, so i can remove some time from the shift past 4500rpm. Re: Here's what's gonna break on your 5th gen Also keep in mind the article was first published in June 2011 (I have the hard copy at home), which means it was probably written in December 2010. Rough downshift/RPM Jump after K&N? May 13 2015. I started out with an 87 tune and a firm shift tune on the silverado, since I always liked that on the Yukon. But if the spring or pressure behind. 84 and the 6l80e is 4. The TAV/Heritage team chose the GM 6L80e automatic transmission with a RW Performance Engineering LT230 adapter to mate with the R2. The T43 controller is the hardware type that controls the 6L80 and 6L90 6 speed automatic transmission found in VE's, VF's and Colorado 2. trying to get tap shifting/regular shifting on a 6L80 working when it has a corvette tune and its paired with a truck E38 can certainly be finicky. It is light years ahead of the 4L60 and its big brother the 4L80. The 6L90 transmission is slightly longer and taller than a comparable configuration 6L80 due to it's beefier internals. For use when using a Winters 4L80e shifter with your 6L80e. A5k turbo with ATS manifolds n up-pipes. I recently did a tune up on my truck after rolling 100k miles. With this done, my 6L80E swap is now 100% functional. Now that I have the tap shift all wired up to the trans I am trying to figure out how to set my. Al Bruck, Transmission Engineering Manager Dick Boerema, Transmission Durability Supervisor 6R140 Heavy Duty Six-Speed Transmission F-Series: Best selling truck in U. The Winters supplied 4L80e bracket needs modified extensively. best top 10 ceramic siphonic brands and get free shipping. i'm looking to see what options or suggestions you may have. is it possible for the transmission control module to be out of adjustment?or for something else could be out of adjustment like the shifter or shift selinoid or what not. TH350s/ 700R4s/ TH400s work by using a GM flexplate spacer and bolts to place the flexplate at the proper spacing. FAST FREE SHIPPING - ALL Orders over $199 (Continental US Only) Home; My Account; Contact Us; About Us; Cart 0. Product Description: This Universal Automatic Transmission Computer is a fully programmable transmission controller. The new eight-speed gearbox is a Hydra-Matic 8L45, which GM says is “roughly the same size and weight as the 6L80 six-speed automatic it replaces” so the new truck’s curb weight and payload. the truck is almost done. A V-8 finally makes its way under the H3's hood in the Alpha model. To improve off the line performance for both towing and spirited driving, a wider 7. EFI Connection recommends the use of a 1996-newer 4L60E transmission or the services of a professional transmission builder to assist in upgrading the 1995 4L60E with 1996-newer internals. US Shift Electronic Transmission Control Systems let you take charge of your 6R80, 4R70W, E4OD, 4R100, 4L60E, or 4L80E transmission and unlock its true potential. I'll update this later when I have more time, but I've been working closely with TBMS out of New Jersey to develop a 6L80e conversion for our H3s. 2006-2007--GMC--Yukon 4WD--8 Cylinders T 5. It looks as if everything is setup properly I must be missing something. 1L VIN T MFI (1993) See All. CAC is a Banks with 3 inch boost tubes. The only thing is it seems like the 2-3 happens to quickly or its just because the lazy shift is gone now, and that 6th. 8's which are found in Australia and New Zealand delivered vehicles. 56 first gear ratio, compared to the 4. Rough downshift/RPM Jump after K&N? May 13 2015. DTC Descriptor. The COMPUSHIFT Sport is the market leading transmission controller for 4 speed transmissions. I noticed that if i drove with it in sport mode it wouldn't do it. One of the most common (and most frustrating) problems that happens to the 4L80E is when it loses 3rd and 4th gear at the same time. NEW TRANSMISSION REFERENCE 4L60/70 4L80 6L50 6L80 Fixed Yoke 6T40/45 6L80 Slip Yoke 6L80 4WD 6L90 2WD 6L90 4WD 6T70/75 1. Like the Snap On tool or a GM Tech II can do it. Put a gauge on it. These include Toyota, Ferrari, Rolls-Royce, and Hummer. This ALLISON 5 SPEED TCM programming harness requires Pass-Through Harness for GM EFI# 100-01032. Oh, the mighty slush box. Building each transmission with to the specific needs of the customer is important to Gearstar. You are currently viewing Chevrolet. "The 6L80E is a clutch-to-clutch unit, which means that unless one clutch. McLeod 6306607M RXT Twin Disc Ceramic Clutch Kit With Aluminum Flywheel, 6-Bolt Flange For 2009-15 LSA, 2014 Gen 5 LT1/LT4 WITH AFTERMARKET CRANKS. Automatic Transmission - LS V8 Automatic Transmissions, 4L60E, 4L80E, TH350, TH400, TH2004R, Powerglide, Converters, and Shift Kits discussion, how-to guides, and technical help. The downside is with that tuning, it does not like to go faster than, with or without a load. Now has about 34K miles on it but has done the following since new: Works fine when NOT towing trailer in trailer tow mode, i. 20 sec, the trans would shift too hard for my taste at any point in the rpm. Joined: 30 Apr 1999 Posts: 10759 Location: 2015 Tahoe 2WD 5. MAD DOG TRANSMISSIONS 1025 Union Center Dr Suite E Alpharetta, GA 30004 Monday- Friday from 8:00 AM to 5:00 PM (770) 781-0949. No one has perfected the tuning on the A6. Need some pionters on 6 Speed 6L80E Transmission Can someone share some pointers on 6L80E transmission tuningLike what to focus on & what to stay away from Going to be working on a 2011 Silverado 6. 3L 6L80E, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project. There are many companies that have pieces to make. Re: Here's what's gonna break on your 5th gen Also keep in mind the article was first published in June 2011 (I have the hard copy at home), which means it was probably written in December 2010. GM 6L45, 6L50, 6L80, 6L90 Valve Body Layout. Wire in link management ECUs, Plug in ECUs, accessories and much more. The downshift lever return spring may be slightly out of place, preventing the top plate from getting into exactly the right position. Full throttle 9. Full throttle 9. so we shall see how she lasts. It has not affected the gas mileage enough to bother me. If the transmission fails to upshift/downshift, refer to Diagnosis By Symptom in this section. GM states, ". The easiest way to describe it is if you have a 6L80E that came out of a 2009 silverado you would want to match it up with a 2009 engine calibration E38 ECU part number 12625455. Pressure is raised by tuning. 10's with 265/75/16"s and a cruising speed of 70mph (for example) puts the engine at 2040rpm in 6th gear which it can't maintain and will downshift to 5th. The 1st gear is a lot steeper in the 6l80e and will provide a lot of low end punch. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. 84 and the 6l80e is 4. It is time to look at the shift linkage of your vehicle. trying to get tap shifting/regular shifting on a 6L80 working when it has a corvette tune and its paired with a truck E38 can certainly be finicky. From youth soccer moms to speed-demon dads, our focus is on providing quality transmissions and quality experience at an awesome value. Campaign: 17V437000 on 07/11/2017 Component: Air bags:frontal Manufactured: 03/24/2013 - 08/14/2016 Affected: 40,683 Defect: General motors llc (gm) is recalling certain model year 2014-2016 buick lacrosse and chevrolet spark ev, caprice ppv and ss vehicles, 2014-2017 buick encore and chevrolet corvette, silverado 1500 and gmc sierra 1500 vehicles, 2015-2016 cadillac escalade and escalade esv. Now, when I drop down into 3 / D4, it goes into TUTD mode and I can use paddle shifters at will. The real cost is trying to get it to work with my stock set up. The force motor is a relief valve that requires a current to reduce line pressure, the higher the current the lower the resulting line. INCLUDING PRESSURE PLATES THE REST OF CLUTCH SETS APPEARER LIKE NEW. 0 gas engine and 6 speed auto. The function of the #6 ball check valve is similar to that of the #5 ball check valve (see 3rd Clutch Accumulator Downshift Control). Ask Away! with Jeff Smith: Upgrading 6L80/6L90 Transmissions for Boost Posted by Jeff Smith on July 26, 2019 at 11:26 am This Sonnax illustration shows the stock clutch apply version on the left and the improved Sonnax apply piston, piston dam, and apply ring on the right side. This unique 8L90 transmission pump also significantly improves priming capability and line pressure. Jump to Latest not because i'm ballsy, but because this trans can take it. Level 3 6L80E / 6L90E Transmission. The problem began after it hit around 2k miles and was ignored until about 17k miles. Jump to Latest Follow 2010 Silverado ECRB LT2 5. It will only go down to gear 2 or 3 and then go. Drivetrain: 6L80, Sonnax Suspension: BMR 15" Strange Coilovers Wheels/Tires: 15x10 RT-S on 275/60R15 Pro's, 17x5 Weld on M/T 28" Ported LSA Blower, 9. transmissionkits. 21s 60' with the WOT restriction and stock tuning in place. 5K ohm resistor and connect to ground. GM > Transmission > Auto Shift Properties. I did a little homework and found the following for you 07-09 GMT900 owners:Stock H-11 Lo-beam = 1350 lumens, life expectancy = 600-800 hrs, $15 ea. _____ 19 A10 ZL1-1LE (Delivery 3/27/19). Hydraulics Fundamentals Part II: Accumulators & Shift Feel. NEW TRANSMISSION REFERENCE 4L60/70 4L80 6L50 6L80 Fixed Yoke 6T40/45 6L80 Slip Yoke 6L80 4WD 6L90 2WD 6L90 4WD 6T70/75 1. The GM 4L80E 4-speed overdrive transmission is the ultimate overdrive platform to suit virtually combination that requires the strongest overdrive transmission possible. 2009 - 2013 6L90E T43 TCC tuning We're seeing failures between 100 and 175k miles for transmissions that should last far longer. When the TCC solenoid receives a signal from the engine control module (ECM), it opens a passage in the valve body and hydraulic fluid applies the TCC. It’s also been noted that the kick-down cable and switch for the passing gear downshift is absent in the 700R4 as well. Performance Transmission Builds and Tuning 4l60e,4l80e,6l80/90 ford 6r80,4r70/75 call/Text RSATech &Transmissions 416-722-7865 Reg -www. The Chevy mechanic said that it always sounds worse on a extended long bed truck cause of the length of drive shaft. 7 out of 5 by 53. GM - The TCU also needs a connection to the factory distributor. The PSI Paddle Shifter provides upshift and downshift commands to a 6L80E/6L90E. The COMPUSHIFT Pro is our flagship transmission controller and can manage transmissions with 4, 5, 6 or more gears. That allows you to have more tuning table options. Oh, the mighty slush box. 2 liter L92 engine with a 6L80 transmission behind it (6 speed automatic) this setup is out of a 2008 Cadillac Escalade. Road tuning is an important tool for any tuner to have in his or her skill set, and even with access to a dyno, we still recommend that every tune is checked and confirmed on the road. is it possible for the transmission control module to be out of adjustment?or for something else could be out of adjustment like the shifter or shift selinoid or what not. The document ID#1875647 covers 2007 GMC Yukon Denali, Cadillac Escalades & 2006 Corvettes with a 6L80 transmission. Rough downshift/RPM Jump after K&N? May 13 2015. When the ECM signal stops, the solenoid closes the valve and pressure is vented, causing the TCC to disengage. I scored an all aluminum L33 out of a 06. The downshift lever return spring may be slightly out of place, preventing the top plate from getting into exactly the right position. Hughes Performance specializes in rebuilding and repairing transmissions and torque converters. As they stated, they figure out that the temperature of the transmission's forces the sensor to a fail safe mode which removes/disables high gear torque. 92 axle option and bump up the payload by 800 pounds!. Im still learning, thats why i need help. Dimensions. Get your hands on the complete GMC factory workshop software. Learn how to tune GM's 4L60E / 4L65E transmission using HP Tuners to get the drivability and gear shifting that you want and that suits your driving style. 6l90 vs 8l90. I started out with an 87 tune and a firm shift tune on the silverado, since I always liked that on the Yukon. Hurst 6l80e shifter. When pushed, WOT shifts are less than impressive due to the factory tune with 100% torque management. 10's with 265/75/16"s and a cruising speed of 70mph (for example) puts the engine at 2040rpm in 6th gear which it can't maintain and will downshift to 5th. This page provides information on how the 4L80E automatic transmission from General Motors operates with the MegaShift™ controller, as well as the TunerStudioMS settings needed to configure the controller. Ashland, VA 23005 Powertrain Control Solutions PCS TCM2800 Quick Start Guide. car went 12. One of the most common (and most frustrating) problems that happens to the 4L80E is when it loses 3rd and 4th gear at the same time. Jump to Latest not because i'm ballsy, but because this trans can take it. but it looks fucking beautiful and i couldnt of done it without this club. GM's 5 speed automatic transmission was used widely between 2000 and 2007. The flash while going to N isn't good and that's what I'm trying to work out. All 6L80 questions answered by experts. “It covered the light-duty trucks and SUVs up until they switched over to the 6L80 in 2009. Peak HP on a Mustang Dyno was at 5,700 on my T and ran 9. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. Now its down to 0,2. It consists primarily of a four-element torque converter, an integral fluid pump and converter housing, a single and double planetary gear set, friction and mechanical clutch assemblies, and a hydraulic. A 60 second plug-n-play install is all it takes to increase the performance and mileage of your vehicle. Road tuning is an important tool for any tuner to have in his or her skill set, and even with access to a dyno, we still recommend that every tune is checked and confirmed on the road. John Parmenter, Precision International Tech Advisor goes over in detail resolving problems on the 6L80 transmission. On/Off: On/Off commands have 3 modes. 8L (1994) Lumina V6-191 3. Please note, fluids and tuning would be in addition to the R&R Service. I took my radio out to wire the parking brake switch to ground for my jvc screen. Similarly, if you compare the GM 6L80 with the 8L90, first is 4. Now, after two cam changes, same trans operation with both. 10's with 265/75/16"s and a cruising speed of 70mph (for example) puts the engine at 2040rpm in 6th gear which it can't maintain and will downshift to 5th. 3, mods are a BullyDog programmer and a single to dual magnaflow and AFE intake and spacer. Rated 5 out of 5 by mt89441 from Worth Every Penny!!! Wow is all I can say about this Tuner. Chevrolet - Monte Carlo - Workshop Manual - (1998) Chevrolet - Monte Carlo - Workshop Manual - (2006) Chevrolet - Monte Carlo - Workshop Manual - (1986). Along with other re-engineering necessary for the install, Terrien switched to a right-hand drive Discovery steering box, as the original LHD location occluded the new drivetrain and mounts. It shares many components and design features. 67) on the pressure control solenoid wire from the trans connector pin D to the GPIO board's pin 33. Lets start at the basics, this Scout is powered by a 6. I have an 08 Suburban 3/4 ton, with 6. 8’s which are found in Australia and New Zealand delivered vehicles. The 6L80/90 series units seem to be the most popular GM applications that we see, and the focus of this article. We have proven this to handle 1. 6L80 Six-Speed Automatic This new-gen GM trans is so sophisticated that it has a separate computer (TCM or transmission control module). However if comparing fuel efficiency between identical vehicles generally the one able to cruise at lower RPM's will be better. I have a 2010 GMC Sierra with 3:08's front and rear on my 4x4! I have been looking to re-gear this truck, since new. But one thing that's strange is the transmission tuning on the 6L80. vehicle weights. Automatic Transmission - Page 15 - LS1TECH - Camaro and Firebird Forum Discussion. Auto Trans(4l60e 4l65e 4l70e) - Free ebook download as PDF File (. 0 gas engine and 6 speed auto. John Bullock. "The 6L80E is a clutch-to-clutch unit, which means that unless one clutch. Transmissions can be programed from nearly any windows computer(see specifications below). The 6L80 – the only transmission offered on the STS-V – is one of the most technologically advanced automatic transmissions in the industry, using clutch-to-clutch operation and an advanced integrated 32-bit transmission controller to deliver smooth and precise shifts. If your tap shift when downshifting is not providing compression or rev matching then you need to get that straightened out ,you are leaving a lot on the table in regards to fun factor and potential performance. CONCERN: 6L80/6L90 (RPO MYC, MYD) applications built before June of 2010 may exhibit a slip condition related to the operation of the 1 -2-3-4 clutch. i'm looking to see what options or suggestions you may have. zoolhouse wrote:Everyone, today I walked into the Nissan dealer in regards to this same issue and they are now aware of the problem. GM > Transmission > Auto Shift Properties. Injectors are 40% over. The Driveway Engineer 34,459 views. Rated 5 out of 5 by mt89441 from Worth Every Penny!!! Wow is all I can say about this Tuner. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. The key is in the tuning and manual downshifting when at highway speeds. But one thing that's strange is the transmission tuning on the 6L80. The PCS Paddle Shifter provides upshift and downshift commands to a PCS transmission controller, a PCS GSM push button shifter, or a GM mechatronic transmission such as the 6L80. While it is straightforward, some wiring and plug termination will have to be performed along with programming. I think the problem mostly is that the. I have also pulled and written tunes to a 6L80 that was modified with HP Tuners. I have noticed that when I downshift there is a slight and quick "whine" noise when downshifting. The specially calibrated controllers are designed for retrofit installation in older vehicles, for easier and quicker installation and operation, without the need for third-party tuning. Erratic shifting. For more information, make sure to visit www. GMC Performance Chips are best in class horsepower, torque and fuel economy gains. I recently did a tune up on my truck after rolling 100k miles. OBD2 Switch Assembly Pass-Through Harness ECU harnesses connect to the OBD2 switch assembly through a short pass-through harness. Alternatively, the stand-alone design allows for late model transmissions to be transplanted into everything from racecars to street rods and truck applications," says Jake Chandler from Baumann Electronic Controls, developer of the US Shift product. The Turbo 400 has been used in Jeeps from the factory. This took a bit of fine tuning to find the exact spot where the neutral wire override would disengage, and the sensor would engage the magnet. The force motor is a relief valve that requires a current to reduce line pressure, the higher the current the lower the resulting line. Re: Here's what's gonna break on your 5th gen Also keep in mind the article was first published in June 2011 (I have the hard copy at home), which means it was probably written in December 2010. It will only go down to gear 2 or 3 and then go. Bought new 11/04. Come ride in my Truck that comes on strongest from 3,500-6,000 rpm. 3 6l80E with Jeep harness-computer and mounts.