There are many vehicles that use the 5L40-E, but some of the more common instances include the BMW 5 Series (E39), L322 Range Rovers, and a range of Cadillacs—check the end of this article for a more comprehensive list of vehicles. What they have in common is working on the 6L80 / 6L90 for the first time. In fact the input torque rating is 440 lb. Novak's 6L80E & 6L90E transmissions to the Jeep New Process (or New Venture) transfer cases conversion makes for one of the strongest geartrains possible for both on-road and off-road, and has become an increasingly popular transmission to transfer case combination. Failsafe Prog" warning is a little bit of a “catch-all” solution in that, anything that the computer in your car deems a potentially damaging threat to the correct operation of your transmission will cause it to go into failsafe. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. Their are no grinding noises so far. Now, nearly 5 months later, the replacement transmission 700R4 4L60E Forward Sprag Assembly W/ No Sun Gear Attached Quality Reconditioned Save money when you buy your transmission and converter together! Choose from several applications that include an ATI Street/Strip transmissions, a Streetmaster Torque Converter, transmission cooler, a “Trick Stick” locking dipstick and tube and, on non electronic units, a case of ATI’s Super F™ automatic transmission fluid! What do you mean by delayed drive or reverse? Does it take longer than it should for your vehicle to switch from park to drive or reverse? Is there no longer a smooth transition into reverse? If you answered yes, it is more than likely that your vehicle is having transmission problems. A lot of updates have occurred to the parts to address the problems you may be experiencing. 21 Aug 2014 The 8L90, the replacement for the venerable 6L80 six-speed in GM's lineup, fuel economy due to lower top gear N/V capability, relative to the 6L80. Reference numbers and/or OEM numbers are listed solely for identification purposes, some Aug 08, 2011 · We take a look at MasterShift's bump shifter systems which combines the rite of passage of the ratchet-style gate shifter with an electronic paddle for track control. 25 May 2014 6L80-E Transmission - No Forward - No Trouble Codes - Transmission 4L60E CHEVY TAHOE NO FORWARD GEARS TEARDOWN AND  23 Sep 2014 What they have in common is working on the 6L80/6L90 for the first time. With a stock motor and stock gears, you will be crossing the traps around 4300 in 4th compared to arond 3600 in 3rd with the stock setup. Read more in this Spotter's Guide. They will likely need to drop the transmission pan, drain the fluid, replace the filter, and then determine the precise location of the leak. just my 2 cents Mar 24, 2010 · The Neutral / Reverse valve moves with no problems at all and the O-Ring on the top of the valve body is still intact and in place. DESCRiPTiON QTY. YEAR PART NO. I'm looking at buying a 2009 to 2011 Silverado. 00, and 0. Check out the deal on GM 6L45-E Forward Clutch Piston 6L50-E 6L80-E 6L90-E Automatic Transmission 2006-On at Oregon Performance Transmission E4OD / 4R100 Level 4 This E4OD / 4R100 transmission comes with a high performance Transgo “TUGGER” Shift-Kit and Sonnax . It is all nearly perfect. Getting to Know the 6L80/90E The General Motors 6L80E and 6L90E 6-speed transmissions were introduced … Shifted into Drive and trans started making whining noise but went into gear however fell out as soon as I gave it some throttle, same in reverse and manual gears. GM 6L80E & 6L90E Transmission to the Jeep Models 231, 242, 249 Transfer Cases. 4L80-Es were optioned only in Chevrolet/GMC pickups, vans, and commercial vehicles, and the Hummer H1. There is no leaking coming from the front seals, rear sears or oil pan. if you see no fluid try to drive it with the plug unplugged in reverse. Then it started shuttering when it was under a load. 29. The reverse clutch in the transmission may have become dislodged. 98 Suffix = 6L45/50-E is “A”, 6L80-E is “C”, 6L90-E is “E” or “C” when no “E” Exists. There was no clunk, no grind, nothing out of the  Chevy Avalanche Transmission Problems & Cost | 4L60E | 4L80E |6L80. Try not to run or drive the car or further damage could result. Common Problems with the Chevrolet Tahoe 6L80E Transmission . It functions correctly. com, the official website for Chevy High Performance Magazine! Dec 31, 2017 · The 4L60E is an automatic transmission with electronic control (E), 4 forward gears (and 1 reverse), longitudinal rear-wheel drive, and a 6,000 lbs. Thank you Monster Transmission. It barely moves in 1st 2nd then when it gets up to speed 3rd 4th and 5th gear is sluggish. has all four gears but no lockup Has code Po894 slipping components will turn on chek engine light after a while. Not like there would be, if you made a 6l80e fit an LT1 engine. In general, anytime a transmission-related problem crops up it’s wise to have the quality and quantity of your transmission fluid inspected. Several months ago. Input Sun. chevyhiperformance. Have Peace Of Mind, knowing that your new 6L80E Transmission has all the Updates developed by General Motors Engineers combined with the Latest Industry Advancements providing Unparalleled OE Strength and Durability. Ford is helping 3M redesign the powered air-purifying respirator (PAPR) that it makes for first responders and health care workers to protect them from contracting the virus while treating patients. It’s up to the Pressure Regulator / PR system to maintain the perfect balance between too much and not enough pressure. It's why a worn or faulty pump makes a whining noise in all gears, including park and neutral. I thought it may help someone out. We build to your specification. Trans shifts into gear harshly, car feels sluggish off the line, No 1st, 4th or Car can safely be driven gently in forward gears until the repair. The 6L90 transmission is slightly longer and taller than a comparable configuration 6L80 due to it's beefier internals. So it's definitely something you want. Designed for longitudinal engine configurations, the series included 4 forward gears. To add to the No reverse, my first gear is slipping only when I let off the gas pedal. The 4L80E is being found in more and more high performance, race, and tow vehicles over the last few years. Park and Reverse still work perfectly normal. March 31, 2020. It was reasonably close, but still no forward gears, only reverse. I seen that currant performance has a setup. They said I could a high performance forward sprag gear (called a 29 element sprag gear) in the tranny to be able to handle larger tire & wheel combo. 81. Like … Sonnax Transmission parts for GM 6L80 applications. I have no further information, and their web sites give no clue. . The Ford F-150 has joined the coronavirus fight. I see the options as follows: Jan 15, 2016 · If there is now movement, the forward sprag is bad because the overrunning clutch holds the sprag, but if it still does not move then it is the forward clutch causing the concern. My transmission blew while on a trip to PA, so I went and got it with a trailer. 23, 1. This transmission was produced by General Motors, but is also sometimes known by the name Hydramatic. The 4L80E has proven reliable like it’s predecessor. Well it fits right on with no interference. Oct 12, 2006 · The only thing is, I have no idea if there is a difference in parasitic drag. 6L80e would be nice, but 2014 CTS will have a TL80 which will have 8 forward gears. Clean the air flow sensor also, check the minimum air rate, reset if needed, then reset the ECM and roadtest if the check engine returns with the same code, check the ECM's sensor voltage to that sensor, if the ECM's voltage is at 5 volts or just slightly below at the sensor then check the sensor ground if it checks good then replace the sensor. I read no pressure at all. We will leave no stone unturned, we WILL find the problem/solution. “L”means that it is longitudinal mounted and runs front to rear, for a rear wheel drive vehicle. Re: GM 4L80E Transmission Lockout Problem: leroy Black: 2-12-09 : Have 4L80E in 2006 2500 with 57,000mi. There appear to be no other mechanical problems with the truck. Thanks. Easy fix in pan. 6L80 New Valve Body Bolts, Shudder No pressure switches during 1st, 2nd, 3rd thand 4 gears. It features five forward gears and one reverse, with 4th gear being a 1:1 ratio and 5th gear being “overdrive. This six-speed transmission features an elegant, robust, band-free design that is simpler than most four speed automatic transmissions. Some of the features are: Full manual shifts – the transmission will be in the gear you select and changes to any gear you choose when you move the selector, no computer or wiring needed, Red Eagle clutches, Carbon fiber ba nd, RedEagle PowerPacks for the forward 4L80E Transmission Problems: Dan Howard: 6-5-05 : My motorhome will not move when put into gear. Home › Forum › GMC › 2016 Sierra Shifting Problem 6 speeed automatic This topic contains 24 replies, has 20 voices, and was la The planetary gears provide six forward gear ratios with a reverse. Jan 16, 2011 · 4L80E transmission Reverse works ok no forward gears. Temps were above 75c, relearn innitiated, when process completed truck had only reverse and no forward gears. 18, 1. 97. Then it shuttered when it was in 4 wheel drive. was working jsut fine backuped to park and then next day wont go - Answered by a verified GM Mechanic I have an 01 2500 4x4 290K no Prior Transmission issues before this. Extra Red Eagle clutches are added to the direct clutch pack for more holding power. I assumed it was either the torque converter, or the pump. I had to re-flash tcm to get forward gears again. Yet the 4L60E isn’t the only transmission of its kind produced by GM at the time. Still, for drag racing, more gears are not always the best option. No forward movement in OD or D, but L2, L1 and R work: Forward sprag is broken. 00, 0. Pressure test specifications, have transmission full of fluid and Greetings,This is unconfirmed, but in the latest issue of CHP, it's alleged that Gearstar Performance and HGM Performance are close to bringing a stand-alone 6L80E controller to the market. 95 eBay determines this price through a machine learned model of the product's sale prices within the last 90 days. remove the linkage and park rod and look at the end, it may be the crimp is worn/broken off and end of rod has Dec 20, 2011 · the story is the truck only goes forward! even in neutral! has NO reverse at all. The van was dying out while still in motion. In its day, the Problem – Harsh or delayed shifts, slipping, no forward/reverse gears. Dec 16, 2008 · Allison 5-speed auto - No reverse - Blinking R Put the selector back in D and forward gears worked finestill, no reverse. I have my doubts there, because I wouldn't have been able to mate the bell housing to the block if the converter wasn't seated. So I carried my converter down to PATC this morning and asked them to pull a flexplate out of one of their packaged kits to check the dimensions. 6L80, 6L90 Transmission Tech Advisory: Consider an Updated Converter in Your Next Rebuild Mar 20, 2010 · 17. Make sure the filter's good before replacing the pump. If the downshift solenoid has any issues, it may cause the vehicle to behave erratically when Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion rates. If you have a service engine soon light on, it’d be a great place to start looking for your no 3rd or 4th gear problem. Mar 03, 2018 · If your transmission happens to be having an electrical problem, it could very well disable the third and fourth gear. Rate this . The first digit of the transmission code indicates the number of forward gears, for any GM transmission. 174. I’ve ran a dozen different converters from 1800K-6000K stall and four different 6L80E transmission mods. My son drove the truck to the store, and it lost all gears forward and reverse. Multiple GM dealers say they either can't replicate the condition, or better yet, "it's normal". The forward clutch has 6 Red Eagle clutches with 50% more clutch apply … Designed with the latest drivetrain technology developments, TCI's 6X six-speed automatic transmission has six forward gears (2. You also need to move forward with viable options that will help you get  4 Aug 2015 What do you do with a 6L80E transmission in a GM SUV when it gets a little the fault code, they could not retrieve it because the CEL was no longer on. Automatic 4 speed (6l60e) vs. We have built several of the 6L80E/6L90E transmissions for performance use. Like as not, not only are the clutches for first, third and fourth shot, but it is also likely that the bands are shot for each particular gear. Because there are no seal rings for 3rd clutch, bushing Hell, I would prefer a 4. If 1994 Silverado 2500 Was driving it and out of no where it just Stops and Rpm rev up and no movement no Rev No gears go in checked the Linkage under neath and everything is good check transmission fluids and good don’t know what it is any help please. Usually means a problem with the counter shaft. Problem – Trucks equipped with the 6-speed 6L80 or 6L90 transmission may experience no forward or reverse engagement, or slipping between the gears. These units use clutch to clutch shifting on all but one of the forward gears and are extremely exact in their control. 10 gears with no other variation than the installed transmission: 6L80/90, 4L80, and 4L70. No codes and it shifts at all the right places just like a new car! In fact, I would even go far as to say it clicks into gears!!! I NEVER thought i would use that word to describe the shifting of this car!!! The bucking at low speeds is gone, the jerk in acceleration is gone!!! The computer needs some wheel spin in order to controll the torque. The apply chart tells me that the only likely problems are 1) forward clutch and 2) low roller clutch. Not all parts listed in this catalog are stocked and are listed for reference only. Any input would be great. The 700R4 is a 4 speed automatic transmission, with a 30% overdrive in 4th gear. This transmission was original designed for GEN III (24 tooth Reluctor Wheel) LS1, LS6 & Vortec engines, however it can be modified internally to work with newer GEN IV (58 Tooth Relator Wheel) LS3, LS7 & Vortec Engines. GM's new Hydra-Matic 6L80 ttransmission is the first of a new family of modular six-speed rear-drive transmissions. With two overdrive gears, engine rpm is reduced by approximately 9 percent at 60 mph - a reduction to about 1,500 rpm. I just don't have that many test spots There was no lag and the shifts really pushed the car forward, even with 100% tq management on 1-2 and 2-3. It wants to slightly creep forward no matter which gear I have selected, even reverse. 55. 6L80-E Transmission - No Forward - No Trouble Codes - Transmission Repair. No Second or Fourth Gears. ” The 4L60-E (and similar 4L65-E) is a series of automatic transmissions from General Motors starting in 1993. Adapting the GM 6L80E & 6L90E Transmission to the Jeep Models 231, 242, 249 These units use clutch to clutch shifting on all but one of the forward gears and are There are no screw holes nor transmission & transfer case shifter holes,  45. In either mode, you get a racetrack shift that bangs through the gears giving you all the right to say "Eat My Shift!". All 6L80 questions answered by experts Whether you need 6L90 wiring diagram information, 6L90 transmission rebuilders tips, 6L90 technical information, 6L90 diagnostics, 6L90 troubleshooting help, or just answers to your 6L90 transmission rebuilders question, the Transmission Rebuilders Network is the place to go! Technical help on the following diagnostic trouble codes (DTC's); operate in each of the six forward gear ratios. i guess i faired a little better than some of you guys. 1 Forward Clutch Piston (Aluminum, Updated Thicker, No Forward) . I was lazily rolling through an intersection a couple weeks ago at about 6mph when I lost all forward gears. When on the ground, the truck will NOT move in any FWD Gears, so it appears the trans is slipping. The adapter kit is designed for exclusive use with the GM 6L80E 2wd versions. Pump. to achieve eight forward speeds and one reverse using this content, no  he had no gears at all vice having reverse and no forward gear so it sounded the 6L80E has some similarities, mainly the snap ring which we will move to  8 Nov 2019 Almost no one thinks of it, but when you drive your automatic Hence, you've commanded your torque converter every time your car shifted gears. Downshifts to a lower gear are available for safe passing, by depressing the accelerator, or by manually selecting a lower gear with the shift lever. Changing gear ratios Article Rating (No Votes). Like the 4L60E, the 6L80/90 applications have undergone numerous updates to improve shift and durability issues. Since then, I've re-checked the fluid. 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 6L80. Any idea how long I can run it Jul 30, 2014 · Supposedly it has no reverse and no natural, but shifts through the forward gears just fine. It was introduced in late 2005, and is very similar in design to the smaller 6L45/6L50, produced at GM Powertrain in Strasbourg, France. Some of the common applications for 6L80e transmission modifications include late model such as Chevrolet Camaro, Chevrolet Corvette, Pontiac G8, Cadillac Escalade, GMC Yukon Denali, Hummer H2, and the Chevrolet Silverado. i've got 95k miles on her and he says about 14-1500 total rebuild. They give you six forward gears (2. But first we’re going to take a brief look at what makes the 6L80/90E transmission tick. At Jake’s Performance the 4L80E is our most popular transmission. Apr 22, 2019 · I read a list that said my 2010 Sierra had a 4L60E but it is in fact the 6L80E - if you have 6 gears, you almost definitely have this transmission on a 1500 truck from this era (the heavy duty trucks have a 6L90E). The graphs prove that acceleration with a 6 speed automatic, in an identically powered vehicle, will generate greater multiplied torque product to the wheel and shift The 6L80e has a TCM internal to the transmission. The 6R80 is actually one of Ford's better transmissions (when you think of the crap they turned out just a few years ago (4R70/5, 4R100 etc). 18. If I shift manually sometimes the problem isn't there, and if the trans temp is around 60ºC the problems are non existent, only when the trans is around 87ºC the problem is there. When I took it apart there was no metal in the pan, or any of that goopy stuff from the 6L80E Specs. 1-2-3-4 Clutch Hub 6L45 / 6L50 / 6L80 / 6L90 RWD 6 Speed D C E B A Stator 1-2-3-4 Clutch 3-5 Reverse Clutch Input Planet 3-5 Rev & 2-6 Clutch Hub 2-6 Clutch Low/Reverse Clutch Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. Was able to load the truck up on a trailer by constantly starting and turning off engine and moving forward a few inches before falling out of gear. No Reverse Followed by No Forward or Reverse, GM and BMW Applications 6L50, MP1622G, MP3025G Transfer Case Shift Concerns Colorado and Canyon Applications 6L50 Updated Pendulum Torque Converter 6L50/80/90 No Reverse After Valve Body Replacement 6L80/90 No 4th, 5th, 6th Gears, Possible DTC P0796 Burnt 2-6 Clutch While the utmost care has been used to compile this information, we assume no responsibility for any errors, omissions, or the misapplications supplied to us. Erratic shifting. 6 LMM Duramax with a 6L80E transmission. 2013 Yukon when I start it put it in drive it goes for about a block or 2 when I come to full stop, It does not move forward or reverse switching through gears won't help or even using the manual transmission. 37 of 51 Actuator Feed Limit No pressure switches during 1st, 2nd, 3rd thand 4 gears. 400, FRICTION FORWARD / DIRECT 400 ALTO RED EAGLE RACING GM Chevrolet Chevy TH475 TH400 TH375 Transmission Parts 400, REPROGRAMMING KIT: 400-PRO, (65-UP) Final Answer for this Great Trans. Why Will My Car Go in Reverse But Not Forward? when a vehicle is losing one or more gears, it is most likely a problem with your transmission or gear shifter. 04:1 gear ratio spread to improve performance and fuel economy when compared with conventional four- and five-speed automatic transmissions. The "Trans. The most common is losing all forward gears or stops moving forward. Pictured below are just a few of the Updates & Upgrades that go into each 6L80E Transmission. PATC GM Performance Transmissions, TH400, TH350, 700R4, 4L60E, 4L80E, 6L80E, 200-4R and others. The above charts demonstrate the usable power range of a stock Trailblazer SS with 4. The reason for the dragstrip improvement is the deeper first gear and less of an RPM drop in each shift. 52. maximum gross vehicle weight limit. 8 4x4 that is giving me some issues. Welcome My problem is the transmission not shifting. Your transmission relies upon the positions of multiple solenoids to control the gear selection. the gut i bought it from and said he had the transmission looked at. It was an evolution of the Turbo-Hydramatic 400, first produced in October 1963. 37 of 51 Actuator Feed Limit I look forward to seeing you there! GEARS October/November 2014 f you’re a regular GEARS reader, you’re no doubt familiar with the Classics on the Coast car show, hosted by ATRA’s Just over 20mph when the transmission shifts from 2nd to 3rd gear, the engine revs up as if the transmission is "slipping" instead of going into gear. The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982. The observable symptom is that the Wheels will turn in any FWD gear when truck is on jack stands. can clear the code and will shift gears normally but no lockup and after a 5 to 10 mile drive will shift hard but stll no lockup. thing but however the valve body works, it gives you those gears even with no electronics. 19. How can I determine if I have a bad pump or a bad torch converter. The transmission 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 pressurization and control system. The motor will rev up, but there is no response from the transmission. REFERENCE NO. Two extra forward gears is a huge plus. The problem is the owner says it doesn't have reverse, but will go forward any day. 6L80/90 technical information. No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise, without written permission of Automatic Transmission Service Group. Sep 23, 2014 · 6L80/6L90 "No Movement" After Repair This is the tale of two transmission technicians: one at the beginning of his career and another who grew up in the business. Gear. Here at Smart Parts Automotive we have taken the 6L80E transmission into the next generation with our performance enhancing upgrades. Aug 24, 2010 · Read about what it takes build a maximum-strength performance automatic transmission. Upgrading your car engine system, 6L80e transmission is the right one for your car. Shift Kits are engineered to restore hydraulic integrity with easy-to-install and cost-effective solutions. A transmission has the possibility of leaking in several areas: 2001 Yukon xl SUV with 81182 miles on it. 57, 1. The van no longer dies out, but still having a problem with shifting gears. More than 25 years of experience. The 6L series transmissions have an internal TCM (transmission control module) and take a signal via the can bus along with other inputs to calculate the best shifts and control. 1-2-3-4 Slip Condition, Possible No movement Forward 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. This is a discussion on A4 4l60e Trans won't shift out of 1st gear within the Automatic Transmission forums, part of the Drivetrain category; I was hearing some grinding at low speeds in 1st gearthought it was just my brakes rubbing due to the Racing Auto Transmissions from Street to Strip / Pro Mod. Abstract. 75) for quicker acceleration and increased fuel economy at cruising speeds. 31, 1. Pressure test port: passenger’s side behind bell housing. Hello Ken, Thank you for your inquiry. 92. There are different reasons why this can happen, I I have a 2000 van with the 4l80e, no forward gears but reverse works. They say because there is no wheel spin, it gives full torque which causes the wheel hop. TransGo Shift Kits include everything you need to address the most common transmission driveability complaints and failures in one box. Free various planetary gears, and a Jun 21, 2012 · Top 10 Install Problems - Part 1 with 5-10 shift cycles through all gears at 20-25% throttle angle. SUV has upgraded transmission that had a supposedly better model "front planet" part per GMC transmission specialist. the automatic 6 speed (6l80e). 95. “4”means that it has four forward gears. It uses five clutch packs and a single one-way clutch to achieve six forward ratios, whereas most four speed units utilize six or more clutches and/or bands, with at least one one-way clutch to achieve four gears. 1 Nov 2013 After overhaul the vehicle loses both forward and reverse movement. I have not noticed a delay in the engagement of forward gears after  18 Jul 2014 Models: 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC). It is an evolution of the Turbo-Hydramatic 700R4, originally produced in 1982. Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. The dealership says it's internal to the transmission and "may" require a new transmission "soon". I have a 2007 Escalade (with 6. When the reverse clutch within the transmission freezes up, it prevents the vehicle from going into any gear other than reverse. Doctor Steve of Doctor Steve’s Transmission Clinic told us that, “There isn’t another transmission that has had the same design in production for 50 years!” These are four-speed transmissions outfitted with four forward gears and one reverse gear, are electronically controlled, and have a 25-percent overdrive gear. Probably a 6. Read more only at www. 173. The Hydra-matic 6-Speed RWD is a fully automatic, six-speed, rear-wheel drive, electronic-controlled transmission. Cause: Likely problem here is the end of the park rod is breaking and its holding the truck in park still. R&R. My 2010 with 174k was shifting great and then forward gears randomly went out. - Car Craft Magazine Jul 19, 2007 · This thread might become a sticky if enough prople have the same problems. 91 ill. 2010 GMC Sierra 1500 - Crew Cab 17. I have a pressure gauge connected to the Port just above the neutral start switch. 97, 2. 53. After installation, the unit worked at first, but suddenly lost Forward, then the input carrier will drop right over the sun gear, spin in place and feel  21 Oct 2016 The General Motors 6L80E and 6L90E 6-speed transmissions were and a low clutch sprag, which provides six forward gears and reverse. Nov 16, 2015 · Hey all, I have my 2000 Silverado 1500 4. Long story short, old transmission is shot, new transmission that was a fresh build, will not engage any forward gears. That way, there wouldn't be any costs trying to get them to fit together. he was told the clutches are stuck together. The problem is caused by leaky clutch fluid seal rings. Gear Ratios are as followed: One of GM’s first steps into the world of overdrive automatics was the 700R4, making its debut in the 1982 model year, and getting a new “4L60” moniker for 1990 to square up with GM’s new naming scheme — “4” for the number of forward gears, “L” for longitudinal mounting (in other words, for rear wheel drive applications), and Find TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271700P and get Free Shipping on Orders Over $99 at Summit Racing! These TCI 6x 6-speed GM 4L80E automatic transmission packages are the first aftermarket 6-speed automatic transmissions capable of handling 850 hp. These transmissions are unfortunately fairly weak and will not provide good durability and longevity with use in high horsepower/high torque applications, especially in racing use with a vehicle that works well at the track. I recently finished a C10 Build w/ the below details. - When manual mode is selected, the current gear range will be the highest attainable range with all of the lower gears available. Now here is the 6L80e converter The snout projects 5/8" past the pads and the center is dished further out towards the engine. Shawn, if you have high horsepower and want 6 forward speeds, talk to Circle-D, I think they are doing a lot with the 6L series transmissions as far as upgrades go. I can't help but believe a 6L80E would require the trans tunnel to be cut out and replaced with a fabricated piece. Jun 06, 2014 · It also has only 2 forward gears, making things light, compact and the less shifting you do, the less you wear the transmission. He thinks it's an electrical issue, I'm not sure. Here are some of the subjects and transmissions that are covered: GM: 4T65E P0741 TCC Circuit Performance, Multiple Codes, DTC's, Lack of Power, Shift Concerns. has anyone heard of this? or can confirm the is the problem? The 6L80E has 6 forward gears and a reverse. The transmissions feature two overdrive gears and a wide, 6. Get 6L80 transmission rebuilding tips, 6L80 troubleshooting help, 6L80 technical service bulletins, 6L80 diagnostics and 6L80 technical information from TRNW. 500″ Power Valve for a better shift. Is this a common issue with the 4l80e?? or does anybody know what causes this most of the time?? He wants $3000 and it has no A/C and no power windows or locks and needs rusty floor pans replaced. 6 SPEED 6L45, 6L50, 6L80E PRESSURE PLATES Prefix Key: D = OEM, A = Aftermarket New, R = Remanufactured Sep 13, 2010 · Give me my 06 and it's 4L80E back until you figure out how to add two more forward gears without the transmission shifting like trash. Assembly. Then it will finally catch and slam forward. Say one day I get tired of my LT1, or its just time for a motor swap cause its wore out. com. out how to add two more forward gears without the transmission shifting like trash. The baddest of the bad, this is a non-electronic 4L80E transmission. one of which is a compound gearset with three pairs of two pinion gears on the output carrier, one pair meshing with the sun gear and The GSM monitors vehicle speed and brake switch status to ensure the vehicle is slowed to a safe speed and the brake is pressed to prevent inadvertent shift in or out of Park, or into Reverse while moving forward. 8/6L80E over a 6. towed to a tranmission shop for the good news. i would first unplug the main plug for the trans, it can leak fuild into the plug and short the pins and cause all sorts of problems. How to easily diagnose, repair, and symptoms and causes of a P2723 code that indicates a detected stuck off condition or performance problem with the E pressure control solenoid. Get the best deals on Complete Car & Truck Automatic Transmissions when you shop the largest online selection at eBay. That supposedly superior "front planet" split into (2) parts inside the transmission although it is one molded piece. 0 liter. If I am missing second and fourth gears but all other gears are ok, the cause points to the 2-4 band not applying. Has anyone had success doing a fast relearn in an 8L90 with HP tuners? I logged "fast relearn status," followed instructions from scanner. No physical signs of damage underneath, fluid level is fine (slightly over-filled actually), color is clear and red. 2L V8 and 6 Speed Auto). 6L80/6L90 "No Movement" After Repair. Have already changed out the crank sensor and the input/output sensors. Noise heard no matter what gear the vehicle is in. ATRA's 2011 Technical Seminar Manual ATRA's 2011 Technical Seminar Manual this manual includes information that was covered at the 2011 ATRA Seminar. Pressure also controls the #1 pressure switch on GEN 1 applications. 75) for quicker acceleration and increased fuel Usually a bad or failing downshift solenoid will produce a few symptoms that can alert the driver of an issue that needs to be serviced. Extremely harsh shifts from P or N, normal shifts at WOT: EPC (Electronic Pressure Control) solenoid failed. Description 6L80E 4-5-6 Clutch Power Hub with Shaft #6L80EPH. was working jsut fine backuped to park and then next day wont go - Answered by a verified GM Mechanic Jan 16, 2011 · 4L80E transmission Reverse works ok no forward gears. If there is a “6” like the new “6L80E”, then it is a six-speed automatic. The GM 6L series units are quickly replacing the 4L60E as the most common unit shops find in their stalls today. The 6L80 (and similar 6L90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. A restricted or clogged transmission filter makes the same whining noise as a faulty transmission pump. The transmissions feature two overdrive gears and a wide gear ratio spread to improve performance and fuel economy when compared with conventional four I also tweaked all the shift points based off of MPH only and increased the shift RPM the equivalent. this will Want to attend an ATSG 2020 Seminar for Free? Submit your informatio n for a chance for you or one of your techs to attend an ATSG Seminar where you gain access to 268 pages of case studies, money saving tips and tricks about the most popular transmission models and education on more than 75 topics! I definitely recommend a look at these transmissions, you've got to have a look. D - Range = Same components as overdrive range except no 4th gear. just my 2 cents The 6L80e has a TCM internal to the transmission. The builder indicated that I didn't properly seat the torque converter. Transmission then grabs hold and rest of the gears no problem. the switch can include no reverse, no forward upshifts, or Dec 20, 2018 · A group of consumers alleges in a recently filed class action lawsuit that a defect in the GM 8L90 and the 8L45 transmissions included in vehicles made between 2015 and 2018 causes problems when drivers try to shift the vehicles. Had some questions about the basic specs on the new 6spd auto, here's some answers. if does then you have damaged clutches etc. Noise hear in one particular gear. If one or more solenoids are bad, you may lose the use of one or more gears, and may even be stuck in one particular gear or unable to shift into any gear at all. Your Tahoe 6L80E transmission uses hydraulic pressure to translate engine power into motion. The gear selector is moving on the side of the transmission. Fully automatic changing of gear ratios is done with the use of the transmission control module or TCM. shut off engine in reverse and see if truck will roll, if wont then this is your problem. Re: 6L80E Won't go into forward gears-Reverse is fine Ok so while getting the clutch packs out I found a bunch of clutch material in the drum. Usually means that there’s damage to that gear. A 6L80E would be a 6 speed automatic. 0015" feeler gauge. Really, it doesn’t matter whether second works or not because if your truck can’t go into the forward gears, then, you can’t get to second, anyway. 7. I had the trans re-flashed once and it used all 6 gears and there was no problems. Can anybody help me with this problem? Equipped with a Reprogrammed Automatic valve body, most units allow you to shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. 1. 3 6l80 trans. Purpose The planetary gear sets provide the six forward gear ratios and reverse. So, a 4L80E would be a 4 speed automatic. Feb 23, 2015 · On this video we talk about the common issued with this particular unit. This might be the problem if the transmission consistently shifts poorly between second and third. The 4L60E has 4 forward gears and a reverse. So far as I can tell, no amount of time or RPMs will cause any forward gear to engage, nor does manually selection of gears. Aug 09, 2009 · Heres some info on the early 4L80E transmission problems. The 4L80E is the descendant of the “Ole Reliable” TH400 transmission. This hub allows for 100% more clutch apply area over stock, 100% more thrust bearing rollers, 150% more lube holes, 29% more inner clutch spline contact area over stock, thick apply plates and a very large Alto Red Eagle Power Pack is included. "busted sun gear,common problem". Overheating / Shifting Issues / No Forward Gears. Some vehicles with GM 6L45 and 6L50 transmissions may exhibit no engagement when shifted into Forward or Reverse gears. And it's no secret why. I can handle getting these assemblies out and changing them, no worr Apr 26, 2009 · I have a 4L60E transmission with no forward or reverse gears. Since it's There was no clunk, no grind, nothing out of the ordinary except neutral condition in all forward gears. and it can handle a total gross vehicle weight of 8,600 lb, which makes it a great transmission for LS swaps with no modification needed whatsoever. The 4L80E, an electronic, overdrive-equipped version of the Sep 18, 2014 · two problems with the 4l80e one could be line pressure, the other the 80e has a fail safe that wont let the trans shift to reverse if it senses a speed of greater than 8mph. When the Service Fast Learn (SFL) procedure was attempted to reset the  19 Jun 2019 Problem is, when I put it in reverse, it goes forward. I even reseated it again with the transmission assembly lube. 56. Typically, when a car will move in reverse, but not in forward, the transmission is having issues. No improvement after fluid exchange and replacing filter. Gm 6L80E transmission technical information. pulled into a gas station for a look-see and found out i no longer had reverse. Jun 23, 2014 · The Turbo-Hydramatic 700-R4, 4L60, electronic 4L60E, and the 4L65E, were all designed to replace the tried-and-true TH350. 0/4L70E. It is a six-speed automatic transmission. No signs of transmission issues before this. 75) for quicker acceleration, and increased cruising speed fuel economy Featuring a compact design, this versatile 6X six-speed automatic FORD USING F-150 PARTS TO DESIGN RESPIRATORS FOR CORONAVIRUS FIGHT. 57. I could get that caddy v8 or whatever other V8 LS engine comes with the 6l80e in the escalade. This is a tricky question to answer. Pro-Race Heavy Duty Super Show Off. had forward gears but man did they whine. PATC builds GM performance transmissions in many levels. I am looking at getting a 2009 GM Ambulance with the 6. Yeah, I noticed the no-load downshifts are not smooth too. Transmission made a popping sound (no forward gears, but reverse gears). One of GM’s first steps into the world of overdrive automatics was the 700R4, making its debut in the 1982 model year, and getting a new “4L60” moniker for 1990 to square up with GM’s new naming scheme — “4” for the number of forward gears, “L” for longitudinal mounting (in other words, for rear wheel drive applications), and A4 4l60e Trans won't shift out of 1st gear. September 23, 2014. GM issued a Technical Service Bulletin (TSB) on Corvettes built between 2006 to 2009 concerning engine flares or "missed" shifts between second and third gears. 6L45/50 Grinding Noise, No Forward, No Reverse. GM states, ". My problems is most of the trucks that are in my price range are the 4 speeds with over 100k. This includes all text illustrations, tables and charts. One of the first symptoms of a bad or failing downshift solenoid is erratic shifting. Jan 05, 2011 · I rebuilt my transmission, and it ran fine for about a year. Do not confuse a slipping transmission with a solenoid problem. The 4L60E has 4 pinion gears in its planetary gear-set. It's crucial when diagnosing a transmission pump or a torque converter. The Problem Suddenly, you have no forward gears in your vehicle. The 6L80 is a robust transmission and can handle a ton of power. I plan on raising the 3-4 shift a bit more, but I really need a track. This condition may be present in more than one forward gear or if the condition is bad enough, it may result in a no movement forward condition. This will cause a servo release problem in 3rd and 4th gears. So as long as you have hardened internals, some clever building tricks, good clutch packs, modified racing valve body with transbrake, you can throw way more power through it than even a built TH400. This is not to advertise these comp Aug 04, 2015 · I have not noticed a delay in the engagement of forward gears after putting it in drive, which I think is mentioned in one or more of the TSBs. I was driving down the hwy at about 60 MPH and the Trans all of a sudden lost all forward gears all i have is Reverse No matter if i manually shift it or not, there were no no loud bangs or any thing, all i had was Throttle but no go juice. Speartech has led the way with developing useful and functional LS and LT 6L80 6L90 8L90 swap accessories including tap shift, Speartech shifter, 6L80 6L90 8L90 neutral safety switch, 6L80 6L90 8L90 reverse light, cooler line manifold, and more for standalone swap use! When it was stock I counted the upshifts to make sure I didn't have a 4L60E. It consists primarily of a four-element torque converter, an integral fluid pump and converter GM 6-Speed 6L80 MYC Hydra-Matic Automatic Transmission. If you have excessive bushing clearance and decide to install a new bushing, there are three things to keep in mind: 8 GEARS September 2005 4L30E Band Failure Figure 8 Figure 9 Always check for warpage using a 0. Noise heard in forward gears, but not reverse or neutral. Full Manual, Performance 4L80E Transmission, Level 4. It shares many components and design features. Trending at $24. You don't notice it as badly in 2nd since 2nd with the 6 speed is much closer to older 3 and 4 speed 1st gears. It’s a longitudinal transmission (that’s what the L in 6L80E stands for Nov 10, 2015 · Greetings, I'm new to the GM world, Ford and Dodge guy. The car has been very well kept and clean, we live in a dry area with no salt on the roads, it is in or near excellent condition for its age. 2011 1500 Silverado 5. Fix as soon as possible or hard parts will eventually break. 6L80E 4-5-6 Clutch Power Hub and Billet Intermediate Shaft. Reverse works perfectly. When it shifts from 1st to 2nd its got a really smooth shift and it puts a smile on your face. Will still get up to 45 though but shifting is erradict and seems to slip alot. Drive a vehicle with it and understand the better gearing. In this issue, we’re going to look at a 2007 GMC K2500 equipped with a 6L90E that had no line rise after being rebuilt. Man 1st Figure 5 Figure 4 COMPOUND PLANETARY GEARSET The planetary gearset in the AODE transmission is a Ravigneaux type set consisting of forward and reverse sun gears, a pinion carrier, long and short pinions and an internal ring gear. The transmission completely failed at 18,000 miles and was replaced under warranty. Found 1 clutch with no material on it. Under these circumstances, it is common that the manual valve has broken into two pieces forcing the car into the Neutral position. The TCI 6x 6-speed GM 4L80E automatic transmission packages are versatile transmissions that fit Chevy small block, big block, and LS Series engines. Also, there was no occurence of limp mode or the OD light flashing. I do tuning support for many major speed/rebuild shops and have thousands of hours loging/tuning/testing my own 2010 test Camaro. This problem is usually caused by improper or low transmission fuel levels. 6l80e no forward gears

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