Gm 6l80 Transmission Recall: Date: 21-NA-199 December, 2021 INFORMATION Subject: Information on Installation of a New Thermal Bypass Valve (TBV) Attention: The new TBV will be stamped with the number 70 and should only be replaced onceduring any transmission repair, including Customer Concern Not Duplicated (CCND). The reason behind this was to accommodate additional physical gear assemblies inside the transmission, permitting 2 additional pinion gears equating to a total of 6. Premium GM (6L80) 4WD Remanufactured 6-Speed Transmission (w/tow or w/o tow universal) GPTTNN8114AB36AA Engine: 5. Let me explain before you get upset and rip this page out. Fill the transmission with 7 liters of Synthetic LVATF HP fluid following Service Information for yourvehicle. 3L V8 Transmission: 6L80 General Motors Automatic 6-Speed (No reviews yet) Write a Review $3474. After researching, I found out that the 2018 Suburban with the 6L80E has a transmission cooler thermal bypass valve from the factory. So here is how you will see the scenarios we just discussed play out. If metallic debris is not present replace the transmission filter, reinstalltransmission oil pan and perform the steps in the Service Procedure below. General Motors For ">Class Action Lawsuit Being Pursued Against General Motors For. The 6L80E transmission is prone to issues that include: 2-3 harsh or delayed shifts, harsh or delayed shifts from park or reverse, burnt 1-2-3-4, or 3-5 reverse clutch, check engine light (DTC P0751 Code), converter shudder due to flaking of the converter lining, shudder on low/reverse apply, TEHCM and/or CAN software malfunction. Remove the transmission oil pan. Moreover, because of their previous lawsuits, it doesn’t seem that this will be an easy situation for them to get out of. 5360216 Remove the transmission oil pan. • If there was excessive metal shaving in the oil pan magnet, continue to step 4. GM 6L80E/6L90E Transmission Problems And Performance Upgrades Offered By Gearstar. GM Class Action Lawsuit / 6L80 transmission failures / Sign in the. Problem – Trucks equipped with the 6-speed 6L80 or 6L90 transmission may experience no forward or reverse engagement, or slipping between the gears. Installation of a 2008, 6L80 complete housing assembly into a 2007 or older 6L80 may result in a 2-3 shift flare or 3-5-R clutch distress. Plaintiffs claim the eight-speed automatic transmission will slip gears, shift into gear aggressively and also cause the vehicle to shudder or jerk. GM applications equipped with a TEHCM (Transmission Electrical Hydraulic Control Module) such as the 6L and 6T equipped vehicles can exhibit any of the following concerns in any combination: In simple terms, the 6L50, 6L80, 6L90, 6T70, 6T75, 6T80 all use the same design TEHCM. According to the lawsuit, General Motors issued more than 12 additional bulletins related to 8-speed transmission problems. A judge has granted class action certification to a lawsuit involving 39 plaintiffs across 26 states — including Michigan — that accuses General Motors of knowingly selling cars with faulty. Besides the pending class-action suits, a variety of issues associated with eight-speed GM transmission have been documented through complaints filed with the. Undercar Properly Diagnose 6L80 Automatic Transmission Issues Over its lifetime, the GM 6L80 automatic transmission has typical failures. Date: 21-NA-199 December, 2021 INFORMATION Subject: Information on Installation of a New Thermal Bypass Valve (TBV) Attention: The new TBV will be stamped with the number 70 and should only be replaced onceduring any transmission repair, including Customer Concern Not Duplicated (CCND). According to the lawsuit, General Motors issued more than 12 additional bulletins related to 8-speed transmission problems. This also means if you have an issue with a TEHCM and it is microprocessor related, it is likely to affect not only 6L45 (MYA), 6L50 (MYB), 6L80 (MYC), 6L90 (MYD) applications but also 6T70 (M7U, M7W) applications as well. Chevrolet Corvette Z06 8 CYL. Plaintiffs claim the eight-speed automatic transmission will slip gears, shift into gear aggressively and also cause the vehicle to shudder or jerk. September 9, 2020 After installing the service pump cover, a transmission may have low line pressure. If this is the case, the transmission pump should be disassembled and inspected for possible damage. It was designed for both AWD/4WD and RWD General Motors applications. Remove the upper and lower valve body and clean. The system does not glide smoothly and causes this problem. Copyright 2021 General Motors LLC. Firstly, the 6L80 case is shorter. GM 6L80 and 6L90 units are now starting to reach their prime age in the repair cycle, and techs across the country are starting to see a consistent pattern of transmission failures with full-size 6L80, 6L90 vehicles. Everything You Need To Know About GM Automatic Transmissions. After researching, I found out that the 2018 Suburban with the 6L80E has a transmission cooler thermal bypass valve from the factory. GM 6L80E/6L90E Transmission Problems And Performance Upgrades Offered By Gearstar Starting in the 2006 model year, General Motors released the 6L80E and 6L90E transmissions that developed several issues that tend to frustrate transmission as well as body shop technicians servicing them globally. Tech Tip: GM 6L80, 6L90 Low Line Pressure Repair. As of July 8 th, 2019, GM began using a new type of Mobil 1 automatic transmission fluid for the troublesome transmissions. GM Automatic Transmission Lawsuit Gets Class Action Status">GM Automatic Transmission Lawsuit Gets Class Action Status. Lawsuit Alleges GM Transmission Problems Known Since 2014. Properly Diagnose 6L80 Automatic Transmission …. Installation of a 2008, 6L80 complete. The 6L80 transmission had a design change to the 1-2-3-4 piston, 1-2-3-4 piston housing and the 3-5-R piston for the 2008 model year. This also means if you have an issue with a TEHCM and it is microprocessor related, it is likely to affect not only 6L45 (MYA), 6L50 (MYB), 6L80 (MYC), 6L90 (MYD) applications but also 6T70 (M7U, M7W) applications as well. 2008-2009 HUMMER H22008-2009 Pontiac G8Equipped with 6L80 or 6L90 Automatic Transmission (RPOs MYC, MYD) This bulletin has been revised to update the 2006-2009 Vehicles correction section andupdate the Labor Operation to the Global Labor Code (GLC). Almost unnoticed at the time, GM’s Hydramatic transmissions had begun the move to electronic versions. The 6L80 has unique operations, such as an advanced computer controller constructed into the valve body and a direct clutch to clutch shifting. Judge grants class action status in GM faulty transmission. 6l80 transmission problem. I was wanting to know if this transmission needs to be reprogrammed ,flashed or relearned. The 6L80E transmission is widely used in such popular GM applications as the Silverado and Sierra trucks, Tahoe, Suburban, Denali, Hummer H2, Cadillac Escalade, STS and CTS, Camaro, and G8. Side-by-side comparison of the 6L80, 8L90, and 10R90 automatic transmissions. GM 6L80 Transmission Problems. Remove the transmission oil pan. As of July 8 th, 2019, GM began using a new type of Mobil 1 automatic transmission fluid for the troublesome transmissions. The Chevrolet Performance 6L80E trans comes with a set of wiring harness adapters and a flash drive that is used to configure the transmission to be used behind a GM LS engine in a rear wheel drive application. Reference SUPERMATIC 6L80-E. The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. Refer toTorque Converter Replacementin SI. Almost unnoticed at the time, GM’s Hydramatic transmissions had begun the move to electronic versions. 6l80e Transmission Specs Case Material: Aluminum Torque Rating: 664 ft lbs Weight: 195 pounds (Dry), 230 pounds (Filled) Gear Ratios: 1st Gear: 4. GM class-action lawsuit alleges companies sold faulty 8-speed transmissions Detroit Free Press 0:00 1:02 A judge has granted class action certification to a lawsuit involving 39 plaintiffs. • If metallic debris is present remove transmission and replace torque converter, replace filter. 6L80 Transmission Life Expectancy. Inspect the magnet in the pan for excessive metal accumulation. The lawsuit filed against GM for allegedly and knowingly selling vehicles with defective transmissions entered a new phase as Eastern District of Michigan judge David Lawson granted it class. If this light is on, there may be a stored trouble code related to a bad shift solenoid. Perform the Transmission Fluid Level andCondition Check outlined below in this procedure: 36. GM lawsuit on Monday, March 20 th, the Detroit Free Press reports. This problem currently affects 11 different models across 3 different OEM brands for the model years between 2015 and 2019. General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. Customers that complain of shuddering and harsh shifting. Properly Diagnose 6L80 Automatic Transmission Issues. Subscribe to GM Authority for more updates on this GM transmission lawsuit, along with ongoing GM legal news, GM recall news, GM safety news, and. 5360216 If metallic debris is present remove transmission and replace torque converter,replace filter. NA LGX M5T 8 V6 1100-1500 42-55 100-250 23 Chevrolet Camaro 4 CYL. GM Class Action Lawsuit / 6L80 transmission failures / …. GM 6L80 and 6L90 units are now starting to reach their prime age in the repair cycle, and techs across the country are starting to see a consistent pattern of. You have to change the two push in clip type cooler lines to the new style with a plate and single bolt to be able to use the new thermal bypass valve. 0:00 / 13:37 Transmission slipping? how to beef up your GM 6l80E! All terrain TV 809 subscribers Subscribe 588 Share 49K views 2 years ago GREEN BAY When I bought my 2010. 6l80 transmission problem | GM Truck Club Forum Home Forums General Tech Forums General Chevy & GM Tech Questions 6l80 transmission problem 2363 Views 7 Replies 3 Participants Last post by tneels7 , Jan 30, 2022 T tneels7 Discussion Starter · Jan 27, 2022 have a 13 tahoe transmission went out installed a used 6l80. Other common 6L80E transmission problems include:. In addition, instead of sending dealers multiple bulletins, the. Remanufactured Valve Body. The GM 6L80 transmission recall affects certain model years of vehicles that are equipped with this particular type of transmission. Five separate class-action lawsuits filed against General. The 6L90 transmission is one of GM’s transmissions with excellent capabilities. 6L80 ">The Devil’s in the Details! A Machinist’s Look at the 6L80. As with other manufacturers, the GM cooler bypass valve can fail. GM eight-speed. According to the lawsuit, General Motors issued more than 12 additional bulletins related to 8-speed transmission problems. : Date: 18-NA-355 August, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at. The Chevrolet Performance 6L80E trans comes with a set of wiring harness adapters and a flash drive that is used to configure the transmission to be used behind a GM LS engine in a rear wheel drive application. I did get my door handle fixed and see that it is a common problem. Transmission—All You Need to know – Rx Mechanic">6L90 Transmission—All You Need to know – Rx Mechanic. PDF Service Bulletin Bulletin No. GM 6L80E/6L90E Transmission Problems And Performance Upgrades. If there was no signs of metal in the oil pan,install the pan and no further work is required. Transmission Warning Light Some cars also have a separate warning light for the transmission. After researching, I found out that the 2018 Suburban with the 6L80E has a transmission cooler thermal bypass valve from the factory. Transmission 6L80E (6-speed) lower fluid temp upgrade 23244 Views 12 Replies 5 Participants Last post by Just_ascin , Apr 23, 2023 bazar01 Discussion Starter · Aug 23, 2020 (Edited) I just wanted to share what I did to prep my 2018 Suburban for towing my camper. One common 6l80 issue due to design flaws include premature clutch failure. Transmission slipping? how to beef up your GM 6l80E!. , Canada and Middle EastOperations (MEO). A loud rattling sound when transmission engages reverse Upon removing the transmission to change the filter, or doing any service to the transmission requiring a refill of the fluid, vehicle not wanting to move or engage the transmission in any range. • If there was no signs of metal in the oil pan, install the pan and no further work is required. The judge certified the Speerly vs. Copyright 2021 General Motors LLC. Installation of a 2008, 6L80 complete housing assembly into a 2007 or older 6L80 may result in a 2-3 shift flare or 3-5-R clutch distress. Service Bulletin Date: February, 2014. It does not allow fluid flow to the cooling lines to the transmission cooler located on top of the hvac condenser until the fluid temp reaches 190F. Bulletin No. Perform the Transmission Fluid Level andCondition Check outlined below in this procedure: 36. Replacement costs can range from $2,000 to $6,000. It was introduced in late 2005, and is very similar in design to the smaller 6L45/6L50, produced at GM Powertrain in Strasbourg, France. It also receives data from the various components, which it then sends back to the TCM and ECU, so it can decide which shift program to use for a given. Undercar Properly Diagnose 6L80 Automatic Transmission Issues Over its lifetime, the GM 6L80 automatic transmission has typical failures. So if the 6L80 doesn’t match your engine, you could upgrade to the 6L90. Inspect the magnet in the pan for excessive metalaccumulation. 604 29K views 2 years ago ABINGTON GM Class Action Lawsuit / 6L80 transmission failures / Sign in the comments Is it time to join together in a class action lawsuit against GM and the. 2015 GMC Sierra 6 Speed Transmission Problems. A class-action GM transmission lawsuit has hit a snag after a judge dismissed certain implied warranty claims made in the filing. : Date: 18-NA-355 August, 2019 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed Attention: This Bulletin only applies to vehicles sold in the U. GM 6L80 and 6L90 units are now starting to reach their prime age in the repair cycle, and techs across the country are starting to see a consistent pattern of transmission failures with full-size 6L80, 6L90 vehicles. It was used most commonly in vehicles like the Cadillac Escalade, Chevrolet Avalanche, Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, GMC Yukon, and the H2 Hummer. We’ll mention a few common problems with these transmissions. 6l80 transmission problem | GM Truck Club Forum Home Forums General Tech Forums General Chevy & GM Tech Questions 6l80 transmission problem 2363. Start the engine and run 4 quarts into GE-47716-2Graduated Bucket, then shut vehicle off (dumpfluid out of bucket as necessary). General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. have a 13 tahoe transmission went out installed a used 6l80. GM (6L80) 4WD Remanufactured 6. GM transmission lawsuit: The saga continues">GM transmission lawsuit: The saga continues. Besides the pending class-action suits, a variety of issues associated with eight-speed GM transmission have been documented through complaints filed with the National Highway Traffic Safety. Sonnax remanufactured valve body GM6L80E has been designed to address common issues, such as: burnt clutches; codes P0751, P0741, P0742; harsh TCC apply; bump, harsh or flare shifts; bind-ups; solenoid performance codes; and wrong gear starts. Chevrolet Corvette Z06 8 CYL. 2008 Sprinter 2500 170 - camper van. 2015 GMC Sierra Problems 1. Delivering the Goods - January/February - 2021. The 6L80E transmission is prone to issues that include: 2-3 harsh or delayed shifts, harsh or delayed shifts from park or reverse, burnt 1-2-3-4, or 3-5 reverse clutch, check engine light (DTC P0751 Code), converter shudder due to flaking of the converter lining, shudder on low/reverse apply, TEHCM and/or CAN software malfunction. Chevrolet Corvette Z06 8 CYL. The gist of the lawsuit is that these transmissions have a known, common defect. Everything seemed to be working good however after you go over 40 then come to a stop it feels like somone is rear ending you. Transmission (DEXRON®VI) 88865601 (U. The 6L80 (and similar 6L90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. It was originally filed in April of 2019, but as CarComplaints. The typical transmission life expectancy for a 6L80 is around 150,000 miles. The GM-approved 6L80 was for use in a vehicle weighing up to 8,600 pounds or for those with a gross weight of 14,000 pounds. 49K views 2 years ago GREEN BAY When I bought my 2010 Silverado, we knew the trans was slipping before I even test drove it, but it was only slipping in low gears, once it was in overdrive it was. TEHCMs, which are found in all GM 6-speed automatic transmissions, can be flashed at your facility using the ACDelco TIS2Web program and a J2534 interface tool, making it even easier to earn customers’ trust. The documents cite a number of. Some drivers have found the need to replace the 2015 GMC Sierra’s transmission when their trucks have covered only 66,000 miles. — Mar 23, 2023 Sponsored Links The lawsuit filed against GM for allegedly and knowingly selling vehicles with defective transmissions entered a new phase as Eastern District of Michigan judge. GM 6L80 is an automatic transmission and does not require any manual input to shift gears while driving as most of the cars have automatic transmission. This type of transmission had features such as clutch-to-clutch operation with a wide gear ratio for optimum performance and efficiency. Photo courtesy of ATI Performance Products, Inc. General Motors originally manufactured this transmission. Put drain hose into GE-47716-2 Graduated Bucket. The GM class action lawsuit seeks to represent owners and lessees of vehicles equipped with the GM 8L90 or GM 8L45 transmissions in six different states: Florida, California, Illinois, New York, Oklahoma, and Texas. This code basically tells you that there is a problem with the transmission control, and more trouble codes will be found in the transmission control module. INSTALL AN ACDELCO GM OE TEHCM FOR OPTIMAL DRIVEABILITY AND DURABILITY. Possible causes and solutions:. It features clutch to clutch shifting, eliminating the one-way clutches used on older transmission designs. Or buy the new low temp valve and disassemble the internals and hope they are the same as the old style. The suit was originally filed over a year ago in January 2022 on behalf of 39 plaintiffs in. While the 6L80 six-speed automatic transmission did excellently, the 6L90 upgrade made the 6L90 a better transmission. 2008-2009 HUMMER H22008-2009 Pontiac G8Equipped with 6L80 or 6L90 Automatic Transmission (RPOs MYC, MYD) This bulletin has been revised to update the 2006-2009 Vehicles correction section andupdate the Labor Operation to the Global Labor Code (GLC). The 6L80 / 6L90 TEHCM sends and receives data from the ECU to the TCM, then distributes actionable commands to the various components like shift solenoids and pressure control solenoids. Transmission dipstick recall. The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. This is a critical modification necessary for both high RPM, and high torque figures as well. Premium GM (6L80) 4WD Remanufactured 6-Speed Transmission (w/tow or w/o tow universal) GPTTNN8114AB36AA Engine: 5. The recall was announced due to a problem with the transmission cooler lines. 6L80E Transmission Replacements. Copyright 2021 General Motors LLC. Get the transmission fluid temperature to theproper temperature. TEHCMs, which are found in all GM 6-speed automatic transmissions, can be flashed at your facility using the ACDelco TIS2Web program and a J2534 interface tool, making it even easier to earn customers’ trust. Unlike some older transmission designs, the 6L80/90 applications also apply the Low Reverse (L/R) clutch to aid the low sprag during take-off. GMC Sierra 1500 Transmission Problems & Cost. Transmission randomly pops out of "Park" with no one in the vehicle. Undercar Properly Diagnose 6L80 Automatic Transmission Issues Over its lifetime, the GM 6L80 automatic transmission has typical failures. GM, of course, is trying to get the lawsuit dismissed, including the express warranty claims, arguing the plaintiffs allege all these transmissions are plagued equally with the problem (which GM says isn’t true) and are talking about a design defect, and not something covered by the warranty. Based on court documents seen by GM Authority, GM may have been aware of the issues associated with its 8-speed transmission as far back as September of 2014. Please discard CorporateBulletin Number 09-07-30-004I. May 31, 2022 Sponsored by Reman Transmission The application use of the 6L80 transmission has been extensive over the years. Repeat steps 2-5 for the 2nd drain and fill. Other common 6L80E transmission problems include:. Solution – This problem could be caused by a cracked or split transmission filter. General Details This TransGo 6L80 SHIFT KIT® Valve Body Repair Kit fits 2006 and later General Motors and BMW vehicles equipped with the popular 6L45, 6L50, 6L80 and 6L90 automatic transmissions. Problem – Trucks equipped with the 6-speed 6L80 or 6L90 transmission may experience no forward or reverse engagement, or slipping between the gears. Mexico and Export Regions should follow Bulletin 19-NA-018. You may need to pay about $3,000 to replace the vehicle’s transmission. Models 2006-2015 GM Passenger Cars and Trucks equipped with 6L80 or 6L90 Automatic. Fortunately, the 6L80 was replaced but existed together with the 6L90. GM 8L90 and 8L45 Transmission Problems Cause Lawsuit. General Motors Transmission Pan Type OEM Torque Converter Included Yes Transmission Fluid Included Yes Bellhousing Included Yes Number of Gears 6 Manufacturer's Part Number: 8117A-8442 Shipping Weight: 210 Package Height: 25 Package Depth: 49 Package Width: 26 Part Category: Replacement Parts. Swapping to this transmission is currently difficult from an electronic control standpoint. The Devil’s in the Details! A Machinist’s Look at the 6L80. Raise the vehicle, remove the block assembly andreinstall the cooler lines. Similar to some other transmissions, the 6L80/90 may use a cooler bypass valve to improve transmission warm-up (figure 7). From the DT-52263 Transmission Fluid Exchange Kit, remove cooler lines and install DT-52263-1 Block Assembly. • If metallic debris is not present. The six-speed automatic transmission utilizes a broader gear ratio which accounts for its improved performance and fuel economy. Factors that can affect the life expectancy of transmission include regular maintenance and proper care. In this brief guide, we are going to provide you with common problems with GM 6L80 transmission and what you can do to rectify these problems before they worsen. SCHGD LT4 M5U 8 V4 (Eco Driving Mode) 1000-1800 40-80 125-250 28 Chevrolet/ GMC Silverado/ Sierra 8 CYL. — Jan 3, 2022 Sponsored Links General Motors is facing a new class-action lawsuit over claims the automaker shipped vehicles with faulty eight-speed automatic transmissions. A 6L80 transmission can last up to 150,000 miles, but may need to be replaced at around 150,000 miles. 19/mo with More info Product Type: Automatic Transmission Assembly Inventory: Unit may. So what’s the most common failure that’s seen time and again with these? Put simply, it’s the converter. 06:1 6l80e Transmission Fluid Type & Specs How Many Quarts of Transmission Fluid Does a. 6L80 Transmission Problems. This procedure checks both the transmission fluid level, as well as the condition of the fluid itself. Through dipstick tube add 6 quarts of DEX6 transmission fluid. This means that on average, the 6L80 should last around 150,000 miles before needing to be replaced. GM, of course, is trying to get the lawsuit dismissed, including the express warranty claims, arguing the plaintiffs allege all these transmissions are plagued equally with the problem (which GM says isn’t true) and are talking about a design defect, and not something covered by the warranty. Lower the vehicle keeping the wheels off theground and run the transmission through all 8forward gears, reverse and neutral. GM 6L80 Transmission Early Failure Issues & Fixes. GMC Sierra 6 Speed Transmission Problems">2015 GMC Sierra 6 Speed Transmission Problems. bazar01. Developed in-house by General Motors, the Hydra-Matic 6L80 is part of the 6LXX family of fuel-saving, electronically controlled six-speed automatic transmissions that succeeded the 5LXX. Important: When installing a new 1-2-3-4 / 3-5-R. 6L90 Transmission—All You Need to know – Rx Mechanic. The 6l80 was designed to handle the torque output of some of GM’s biggest late-model LS (gen 4) and LT (gen 5) v8 engines, but a number of design flaws created most of the common 6L80E transmission problems. Given the fact that most of these units have torque converter failure and pump damage, the pump will most likely need to be repaired or replaced. Specifically, as detailed on DocketBird. The 6l80 was designed to handle the torque output of some of GM’s biggest late-model LS (gen 4) and LT (gen 5) v8 engines, but a number of design flaws created most of the. General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. Add correct amount of DEX6 transmission fluid(approx. Burnt and low transmission fluid. NA BAS L8B M5X 8 V8 1050-1500 45-55 200-375 26 Chevrolet/ GMC/ Cadillac Silverado/ Sierra/ Yukon Denali/ Denali XL/. The 6L80 transmission had a design change to the 1-2-3-4 piston, 1-2-3-4 piston housing and the 3-5-R piston for the 2008 model year. Starting in the 2006 model year, General Motors released the 6L80E and 6L90E transmissions that developed. Transmission: 6L80 General Motors Automatic 6-Speed (No reviews yet) Write a Review $3474. GM class-action lawsuit alleges companies sold faulty 8-speed transmissions Detroit Free Press 0:00 1:02 A judge has granted class action certification to a lawsuit involving 39 plaintiffs. The judge certified the Speerly vs. After implementing several fluid revisions, GM’s latest solution (TSB 18-NA-355) is lengthy, complicated and expensive. The TCC shudder condition should be directionalimproved immediately after the fluid exchangeprocedure. Refer toTorque Converter Replacement in SI. GM class-action lawsuit alleges companies sold faulty 8-speed transmissions Detroit Free Press 0:00 1:02 A judge has granted class action. GM 6L80E/6L90E Transmission Problems And …. Add 4 quarts Dex6 through dipstick tube. Since the transmission on this vehicle is not equipped with a fill tube and dipstick,. Five separate class-action lawsuits filed against General Motors over alleged defects with its eight-speed automatic transmission were consolidated in a Michigan court this week, according to Car. There may be more than one reason behind this slipping transmission. Service Procedure Replace the torque converter. GM transmission lawsuit: The saga continues. "Perform recall #12138 Transmission Dipstick Tube Fracture V2644 Install Foam sleeve on transmission dipstick per recall FC: Part # 24262134" I noticed quite a few threads about this and I hope it helps someone. Transmission fluid should be changed every 3-6 months, and the. NA BAS L8B M5X 8 V8 1050-1500 45-55 200-375 26 Chevrolet/ GMC/ Cadillac Silverado/ Sierra/ Yukon Denali/ Denali XL/ Escalade. The 6L80’s and 90’s need to have minimal endplay for longevity. The 6L80 and 6L90 transmissions have. 6L80 transmissions manufactured by General Motors in 2006 were designed for RWD and AWD/4WD applications. 6L80 transmissions manufactured by General Motors in 2006 were designed for RWD and AWD/4WD applications. 604 29K views 2 years ago ABINGTON GM Class Action Lawsuit / 6L80 transmission failures / Sign in the comments Is it time to join together in a class action lawsuit against GM and the. A judge has granted class action certification to a lawsuit involving 39 plaintiffs across 26 states — including Michigan — that accuses General Motors of knowingly selling cars with faulty. 6L80 Transmission Drive Type AWD/4WD Transmission Mfr. 6L80 Transmission Drive Type AWD/4WD Transmission Mfr. 604 29K views 2 years ago ABINGTON GM Class Action Lawsuit / 6L80 transmission failures / Sign in the comments Is it time to join together in a class action lawsuit against GM and the. If this class action lawsuit regarding the 10L80 Hydra-Matic transmission is pursued successfully, then GM will need to recall the vehicles that have these transmissions fitted. Developed in-house by General Motors, the Hydra-Matic 6L80 is part of the 6LXX family of fuel-saving, electronically controlled six-speed automatic transmissions that succeeded the 5LXX. In this application, the 456 clutch will typically fail due to overheating. NA L83 M5U 8 V8 1050-1500 45-55 200-375 26 Chevrolet/ GMC Silverado/ Sierra 8 CYL. After implementing several fluid revisions, GM’s latest solution. According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic transmissions,. Transmission slipping The slipping problem turns up while your transmission system slips to a different gear. Date: 19-NA-018 August, 2021 TECHNICAL Subject: Shake and/or Shudder During Light Throttle Acceleration Between 40 and 128 KM/H (25and 80 MPH) at a Steady State Attention: This bulletin only applies to Mexico and Export Regions outside of the U. The 6L80E transmission is widely used in such popular GM applications as the Silverado and Sierra trucks, Tahoe, Suburban, Denali, Hummer H2, Cadillac Escalade, STS and CTS, Camaro, and G8. It “shakes, shudders, jerks, clunks, or ‘hard shifts'” when the transmission changes from one gear to another according to Top Class Actions. When I bought my 2010 Silverado, we knew the trans was slipping before I even test drove it, but it was only slipping in low gears, once it was in overdrive. Reference the Applicable Warranties section of the Investigate Vehicle History (IVH) for coverage information. Start the engine and run 4 quarts into GE-47716-2 Graduated Bucket, then shut vehicle off. The early electronic transmissions were based on the tried-and-true Turbo-Hydramatic design. Refer toTorqueConverter Replacement in SI. Fill the transmission with 7 liters of Synthetic LVATF HP fluid following Service Information for yourvehicle. The lawsuit filed against GM for allegedly and knowingly selling vehicles with defective transmissions entered a new phase as Eastern District of Michigan judge David Lawson granted it class. The reason behind this was to accommodate additional physical gear assemblies inside the transmission, permitting 2. Tighten Tighten the plug to 9Y(80 lb in). SCHGD LT4 M5U 8 V4 (Eco Driving Mode) 1000-1800 40-80 125-250 28 Chevrolet/ GMC Silverado/ Sierra 8 CYL. 49K views 2 years ago GREEN BAY When I bought my 2010 Silverado, we knew the trans was slipping before I even test drove it, but it was only slipping in low gears, once it was in overdrive it was. The Devil’s in the Details! A Machinist’s Look at the 6L80/6L90 Units. The 6L80 is a heavy-duty transmission used in many high-performance vehicles, and is prone to failure. A 6L80 transmission can last up to 150,000 miles, but may need to be replaced at around 150,000 miles. New Thermal Bypass Valve for 6L-80 Transmission 7374 Views 5 Replies 3 Participants Last post by bazar01 , Apr 6, 2022 9 97suburban Discussion Starter · Feb 26, 2022 Found on the internet Technical Service Information #21-NA-199 that talks about this new valve that will open at 158 degrees, instead of 194 degrees for the stock valve. 0:00 / 7:22 6 speed transmission adapts 6L80 6L90 Shifting issues Spartan Autoworx 12K subscribers 18K views 2 years ago We have received many calls as of late for abnormal shifting on 6-speed. Some of the most common issues include: Cracks in the 1-2-3-4 pistons Slipping 2 nd and 3 rd gears Cracked drum Skipping 2-3 gears Clutch Failure First Gear Slipping Reverse gear engagement failure Cracked clutch drum Stator support issues. 19/mo with More info Product Type: Automatic Transmission Assembly Inventory:. The 6L80’s and 90’s need to have minimal endplay for longevity. Firstly, the 6L80 case is shorter. These problems can even lead to transmission overheating in some cases. Service Procedure Replace the torque converter. New Thermal Bypass Valve for 6L. The Hydra-Matic 6L80 (production code MYC) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal. In some cases, these lines can leak fluid and cause damage to the transmission. 6L80E Transmission Guide & Information">6L80E Transmission Guide & Information. Plaintiffs have also reported the. The 6L80 (and similar 6L90) is a six-speed automatic transmission built by General Motors at its Willow Run Transmission plant in Ypsilanti, MI. Turbo LTG M5T 8 V4 1100-1500 42-55 100-250 23 Chevrolet Camaro SS 8 transmission will cause fluid to discharge out the vent tube, possibly causing a fire that may result in serious bodily injury or severe vehicle damage,. The gearbox was created to manage a maximum torque. Premium GM (6L80) 4WD Remanufactured 6. The 6L80 transmission had a design change to the 1-2-3-4 piston, 1-2-3-4 piston housing and the 3-5-R piston for the 2008 model year. So what's the most common failure that's seen time and again with these? Put simply, it's the converter. The shaking can also occur, according to the suit, when. Newer GMC trucks with 6-speed 6L80 transmission can suffer from intermittent or constant transmission issues. The 6l80 was designed to handle the torque output of some of GM's biggest late-model LS (gen 4) and LT (gen 5) v8 engines, but a number of design flaws created most of the common 6L80E transmission problems. 7 liters) Warranty Information Note: Only select the labor operation number that coincide. With this in mind, you need to measure the endplay of the unit BEFORE you disassemble the unit. While the 6L80 six-speed automatic transmission did excellently, the 6L90 upgrade made the 6L90 a better transmission. com reports, that lawsuit is in the news this week because there were some partial dismissals. Labor Operation Description Labor Time 8486048* Install Transmission Thermal Bypass Valve (TBV) During Any Repair That Involves. NA L83 M5U 8 V8 1050-1500 45-55 200-375 26 Chevrolet/ GMC Silverado/ Sierra 8 CYL. Under normal driving (no towing) my transmission temperature stays around 195F - 198F. Symptoms include harsh or delayed shifting, inability to engage certain gears, and slipping when shifting gears. The 6L80E transmission is prone to issues that include: 2-3 harsh or delayed shifts, harsh or delayed shifts from park or reverse, burnt 1-2-3-4, or 3-5.