Hydra matic 6l80 problems

Subject: New Product Announcement -- Hydra-Matic 6L80 Automatic Transmission. Model(s): 2006 Cadillac STS-V, XLR-V 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Attached below is the PDF document for this service bulletin. General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer".

Hydra matic 6l80 problems. Models: 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Purpose. This bulletin introduces and highlights features of the new Hydra-Matic 6L80 Automatic Transmission. Introduction. The Hydra-Matic 6L80 is the first member of a new family of fully automatic, six-speed, clutch-to-clutch, rear-wheel drive, electronic …

1940–1967 Hydra-Matic — Oldsmobile (now the trade name for all GM automatic transmissions) 1948–1963 Dynaflow — Buick. 1950–1973 Powerglide — Chevrolet (also used by Pontiac, Holden, Vauxhall and Opel) 1968-1971 Torquedrive - Chevrolet ( Camaro and Chevy II, Nova. Manually shifted on Column. 1957–1961 Turboglide — Chevrolet (V8 ...

Chevrolet testing has shown the ZL1 with the available 10-speed has faster shift times than the Porsche PDK dual-clutch transmission. In fact, the 1-2 upshift is 36-percent quicker than the PDK, while the 2-3 and 3-4 upshifts are 27-percent and 26-percent quicker, respectively. “You touch the paddle and the gear changes with immediacy ...Overview. The Hydra-Matic 6L80 is six-speed automatic transmission for rear-drive cars, designed with modular flexibility and compatibility with advanced electronic controls. It was introduced for the 2006 Model Year Cadillac STS-V high-performance rear-drive sedan, and the XLR-V and Chevrolet Corvette two-seat sport coupes and convertibles.Android/iOS: Made by the same team behind Pixlr-o-Matic, one of your favorite photo filter apps, Pixlr Express takes a different approach to personalizing your photos. Namely, it p...Some ear disorders can result in hearing problems and deafness. Find out which conditions can affect your hearing and balance. Your ear has three main parts: outer, middle and inne...

Get free real-time information on MATIC/JPY quotes including MATIC/JPY live chart. Indices Commodities Currencies StocksThe Hydra-Matic 6L50 (production code MYB) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain ... Other Transmission. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was fust introduced in the 2006 Corvette with the 6.0L engine. Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007. The Hydra-Matic 6L80 is General Motors first model of a new, four-variant, rear wheel drive (RWD) six speed automatic transmission family. The four variants are the 6L45, 6L50, 6L80 and 6L90. The new, high performance 6L80 will debut in 2006 model year performance vehicles, including the Chevrolet Corvette C6 and new Cadillac STS-V and XLR-V ...Now with more than 60 technical service bulletins (TSBs) filed related to GM’s Hydra-Matic 8-speed transmission, a class action lawsuit has been filed against the automaker. Harper, et al., v. General Motors, LLC. was filed in the U.S. District Court for the Eastern District of Michigan, according to CarComplaints.com. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronically controlled transmission that features clutch to clutch shifting. It consists primarily of a four element torque converter, two planetary gear sets, five clutch packs, one sprag and a hydraulic pressurization and control system.

The 1955 Harley-Davidson FL Hydra-Glide motorcycle offered a host of chrome options. See pictures and learn about this Harley-Davidson motorcycle. Advertisement New Big Twin featur...Other Transmission. The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was fust introduced in the 2006 Corvette with the 6.0L engine. Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007.- Problem #1 - The Torque Converter. - Problem #2 - The Intermediate Shaft. - Problem #3 - The Valve Body. - Problem #4 - The OEM Oil Pan. - Problem #5 - The High …Sonnax has a line of upgrade parts that address some of the 6L80 and 6L90 transmission weaknesses. Foremost on the list is the Sonnax clutch apply kit. The factory clutch apply piston has a sharp, …

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The GM 8L90 Hydra-Matic 8-speed transmission can perform wide open throttle upshifts 8/100 of a second faster than Porsche’s DCT gearbox. The 8L90 transmission can also be manually shifted via steering wheel paddles. And it operates far smoother than a double clutch transmission, thanks to the turbine dampers in the 8L90 torque converter.THM200-R4. The first overdrive automatic to transfer power in the GM lineup was the 200-4R that arrived in 1981 behind A- and G-body cars as well as full-size sedans. This transmission is often mistakenly lumped in with the TH-200 three-speed automatic that GM attempted to make work in the early ‘80s.If you think a loved one has a drinking problem, you may want to help but don't know how. You may not be sure it really is a drinking problem. Or, you might be afraid that your lov...The Hydra-Matic 6L80 is General Motors first model of a new, four-variant, rear wheel drive (RWD) six speed automatic transmission family. The four variants are the 6L45, 6L50, 6L80 and 6L90. The new, high performance 6L80 will debut in 2006 model year performance vehicles, including the Chevrolet Corvette C6 and new Cadillac STS-V and XLR-V ...

General Motors's new Hydra-Matic 6L80 six-speed automatic is a fresh piece of hardware and makes its production debut in this year's Corvette, plus the Cadillac STS-V and XLR-v. As in all Vettes ...If the transmission is failing: It might skip gears. It could be slow to engage into drive. It is likely to start slipping. A smaller repair bill. If the transmission has likely failed (red alert!): The truck will not move – Sometimes called P-N-N-N-N-N (Park-Neutral-Neutral….)Specifications. The 6L80 denotes that the transmission is a 6-Speed, Longitudinally mounted, and for 8000 lbs. vehicle weights. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. Newer to the transmission world is its use of direct clutch-to-clutch shifting and the total lack of bands.May 3, 2015 · Hello all, new to tuning and have been doing lots and lots of reading. I have a 2014 chevy silverado with the 4.3 and the 6l80 trans. I have disabled the dod and have left everything else stock. After driving for about a week im feeling like the trans needs a little tweaking. Mar 22, 2021 · THM200-R4. The first overdrive automatic to transfer power in the GM lineup was the 200-4R that arrived in 1981 behind A- and G-body cars as well as full-size sedans. This transmission is often mistakenly lumped in with the TH-200 three-speed automatic that GM attempted to make work in the early ‘80s. - Problem #1 - The Torque Converter - Problem #2 - The Input Shaft - Problem #3 - The Valve Body - Problem #4 - The C2 Clutch Assembly ... The predecessor to this failure-prone transmission was the aged 6L80 and 6L90 transmission. After a tumultuous run plagued by valve body and torque converter issues, along with further tightening emissions ...The 6 speed wasn't available until 2009. Ohh he has what they call the VortecMax which was before the 6.2 entered into the scene. My bad I saw 6.0 and assumed it was a 2500. As a 1500 yeah he is about a year too early for a 6l80. And being a 6.0, he should have the beefier 2500 tranny as well.The Hydra-Matic 6L80 is a six-speed automatic transmission for rear-drive cars, designed with modular flexibility and compatibility with advanced electronic controls. It was introduced for the 2006 Model Year Cadillac STS-V high-performance rear-drive sedan, and the XLR-V and Chevrolet Corvette two-seat sport coupes and convertibles.Descarga Gratis el manual de la transmisión automática 6L80 PDF. Caja de cambios 6L80. El convertidor de par de 4 elementos contiene una bomba, una turbina, un plato de presión ranurado a la turbina y un estator. El convertidor de torque actúa como un acoplamiento fluido para transmitir suavemente la potencia del motor a la transmisión.

6-speed 6L80 automatic: $3,899; 8-speed 8L90 automatic: $5,894; 10-speed Hydra-Matic 10L80 MF6 automatic: $5,700 ; Common Chevy Silverado 2500 or 3500 Transmission Problems . Chevy Silverado’s and its transmissions are known to have quite a few problems and it’s actually the most common problem their cousin, the Silverado 1500.

Information about GM's 8-speed 8L90 M5U Hydra-Matic transmission, including details, specifications, vehicle applications, and more. ... to fit the same space as the previous 6L80/6L90 family of ...Problem – Vehicles equipped with the 6L80 or 6L90 transmission may slip when Reverse is selected or have no/delayed reverse engagement, harsh shifts from 2-3 / 4-5 or slips while in fifth, and slipping acceleration when passing. Possible DTCs include P0776, P2715 or P2723. Solution – This transmission problem may be caused by a cracked 1-2 ...The GM Hydra-Matic was a success and installed in the majority of GM models by 1950. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. ... 2005–present 6L80 · 6L90 — 6-speed heavy-duty (used in GM trucks and performance cars) 2014–present 8L 90 — 8-speed heavy-duty ...The Hydra-Matic 6L80 is General Motors first model of a new, four-variant, rear wheel drive (RWD) six speed automatic transmission family. The four variants are the 6L45, 6L50, 6L80 and 6L90. The new, high performance 6L80 will debut in 2006 model year performance vehicles, including the Chevrolet Corvette C6 and new Cadillac STS-V and XLR-V ...2006 - 2008 Corvette: GM TechLink: 6L80 or 6L90 Automatic Transmission Shift Conditions 2006 Corvette: Customer Satisfaction Program: Engine Flywheel/Clutch Interference 2004 - 2007 Corvette: Service Bulletin: Engine and Automatic Transmission/Transaxle IdentificationThe General Motors 6L80-E & 6L90-E transmissions are among the most diverse and capable transmissions of their time; being used in everything from exciting muscle cars to family SUV’s. In this Drivetrain 101, we’ll analyze all of its most prolific problems, solutions and upgrades. Become a 6L80-E and 6L90-E expert now! If the transmission is failing: It might skip gears. It could be slow to engage into drive. It is likely to start slipping. A smaller repair bill. If the transmission has likely failed (red alert!): The truck will not move – Sometimes called P-N-N-N-N-N (Park-Neutral-Neutral….) Mar 22, 2021 · THM200-R4. The first overdrive automatic to transfer power in the GM lineup was the 200-4R that arrived in 1981 behind A- and G-body cars as well as full-size sedans. This transmission is often mistakenly lumped in with the TH-200 three-speed automatic that GM attempted to make work in the early ‘80s. Hydramatic. A Hydra-Matic Drive transmission, produced between 1939 and 1956, on display at the Ypsilanti Automotive Heritage Museum. Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors ' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was ...GM is offering a version of its new GM-developed Hydra-Matic 8L90 paddle-shift eight-speed automatic transmission in the 2015 Corvette Stingray (earlier post) and Z06.The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon …

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The 6L80E is a 6-speed automatic transmission that features a 4.02:1 first gear allowing pavement-tearing acceleration. The aftermarket versions available at JEGS allow for a 45% increase in torque. This means it can handle up to 650 ft.-lb. of torque. With numbers like these, it's no wonder that the 6L80 has become a popular choice for those ... The Hydra-Matic 6L50 (production code MYB) is a six-speed automatic transmission produced by General Motors for use in rear- and rear-biased all-wheel-drive vehicles with a longitudinal powertrain ...Problem – Owners may experience an ATF leak coming from under the vehicle. Solution – This 10L80 transmission problem could be the result of a failed oil cooler line fitting retaining bolt. Used 10L80 vs. Rebuilt vs. Remanufactured. If you’re having problems with your 10L80 you’re going to want the most economical solution.The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007. 6l80e Transmission Manual.Poor pressure control due to clutch select valve springs. Problem – Due to OE clutch select valve spring tension, the valve apply fluid pressure inside of the 6L80/6L90 valve body will be too high, causing a number of transmission problems that include: Premature failure of the 1-2-3-4 clutch. Premature failure of the 3-5-Reverse clutch.The 6L80 / 6L90 TEHCM is located inside of the transmission on the 6L80 / 6L90 valve body. Objectively, it is a fairly simple repair: simply remove the transmission pan, remove the valve body, unbolt the TEHCM from the valve body and install the new one. But it does take a bit of experience to not damage anything on the valve body or inside the ...Manual Shaft Pin Update 6L50 6L80 6L90. Length changed 5mm (.19”), taper changed 2.5mm (.09”) Part numbers were updated, shaft will backservice. There 2007 as have a 2007 Spacer been used for the valves circuit to move bleed. These springs are at a not lower available load exhaust pressure on individually. the 2008 reducing tendency of ...A number of 6L80 transmission problems can occur however, including slipping and failure of reverse gear. For more information on 6L80 transmission problems, click here. How …The 6L 50 (and similar 6L 45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors.It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France.Mar 22, 2021 · THM200-R4. The first overdrive automatic to transfer power in the GM lineup was the 200-4R that arrived in 1981 behind A- and G-body cars as well as full-size sedans. This transmission is often mistakenly lumped in with the TH-200 three-speed automatic that GM attempted to make work in the early ‘80s. Nov 21, 2006 · Overview. The Hydra-Matic 6L80 is six-speed automatic transmission for rear-drive cars, designed with modular flexibility and compatibility with advanced electronic controls. It was introduced for the 2006 Model Year Cadillac STS-V high-performance rear-drive sedan, and the XLR-V and Chevrolet Corvette two-seat sport coupes and convertibles. Cruise Grade Braking Features for Hydra-Matic 6L80/6L90 Automatic Transmission - (Oct 17, 2011) Subject: Shift Stabilization, Tow/Haul Mode and Cruise Grade Braking Features for Hydra-Matic® 6L80/6L90 Automatic Transmissions Models: 2007-2012 Cadillac Escalade, Escalade ESV, Escalade EXT 2007-2012 Chevrolet Avalanche, Silverado, Suburban, … ….

2006 - 2008 Corvette: GM TechLink: 6L80 or 6L90 Automatic Transmission Shift Conditions 2006 Corvette: Customer Satisfaction Program: Engine Flywheel/Clutch Interference 2004 - 2007 Corvette: Service Bulletin: Engine and Automatic Transmission/Transaxle IdentificationGM is offering a version of its new GM-developed Hydra-Matic 8L90 paddle-shift eight-speed automatic transmission in the 2015 Corvette Stingray (earlier post) and Z06.The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L EcoTec3 V-8 ...GM Hydra-Matic 10L80 10-Speed Automatic Transmission. The General Motors Hydra-Matic 10-speed 10L80 automatic transmissions is a heavy duty (high performance) variant of the Hydra-Matic 10LXX ...“The problem with verbal abuse is there is no evidence,” Marta shared. She came for help with a long-stand “The problem with verbal abuse is there is no evidence,” Marta shared. Sh...The wide overall ratio spread of 6.04:1 allows a “steep” first gear, as well as a very “tall” overdrive top gear for low-rpm highway cruising. Modular Design. The modular concept of the Hydra-Matic 6L80 centers on the desire for common components and manufacturing tooling for four different size variants of the six-speed family.April 20, 2019 — GM 8L90 and 8L45 transmission problems have caused a proposed class action lawsuit that alleges the 8-speed transmissions are defective in the following vehicles in California ...Jan 19, 2021 ... In this Video Matt from the PSI Team will quickly walk you through the process of removing a TCM from a 6L80/6L90 transmission ... TCM Problems!Before General Motors phased in the 6L90, there was the 6L80 which was designed in 2005. But unlike the usual outfacing of a former, the 6L80 was still in production. Hence, 6L80 became a contemporary to the 6L90. ... A common 6L90 problem is the inability of the reverse gear to engage when selected. This is mainly caused by a faulty …Manual Shaft Pin Update 6L50 6L80 6L90. Length changed 5mm (.19”), taper changed 2.5mm (.09”) Part numbers were updated, shaft will backservice. There 2007 as have a 2007 Spacer been used for the valves circuit to move bleed. These springs are at a not lower available load exhaust pressure on individually. the 2008 reducing tendency of ... The 8L90 transmission is still in use today, but is slowly retiring in exchange for the 10L80 and 10L90 transmissions. Without further ado, we will now assess the prolific problems associated with this transmission and how to address and enhance them. Problem #1 - The Torque Converter. As with many transmissions, the torque converter suffers ... Hydra matic 6l80 problems, A quirk in the way human brains work means that when something becomes rare, we sometimes see it in more places than ever. Why do many problems in life seem to stubbornly stick aro..., The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007, as shown in Figure 1. , The manufacture of the 6L80 began in 2005 and was released in most GM vehicles in the model year of 2006. The transmission lasted until 2016, available in 6L80 vs 6L90 versions. 6L90 Transmission. GM introduced a stronger variant of the 6L80 transmission within a year, known as the 6L90 transmission, RPO code MYD., The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first …, Our optional Premium Service Plan provides allowances for such items as towing, car rental, fluids and premium labor should a problem arise. Click here for details and limitations. If you have any questions or need help, feel free to contact our team. 800-827-7455., Nov 22, 2022 · The 6L80 replaced the older 4L60 four-speed automatic in many truck and SUV applications as well as some rear-wheel drive cars. The main problems that have been reported with the 6L80 transmission are: 1) Shuddering/Vibration – Some drivers have reported a shuddering or vibration feeling when driving at highway speeds. , Everyone's feet are different, but certain everyday foot problems are common. Learn about these annoying foot conditions and how to improve them here. Advertisement Feet are like s..., The 6L80 Transmission You Can Count On. Built With The Best, By The Best. 5-Star Rated Nationally Recognized 6L80 Transmission Supplier. , Pine Bluff, AR 71601. (870) 535-4973. www.abbott-tach.com. Today's 4L65-E and 4L60-E transmissions trace their lineage to 1982 and the introduction of the 700R4, one of General Motors' first ..., The Hydra-Matic 6L80 six-speed automatic transmission was the first of four variants in the rear-wheel drive transmission family designed with modular flexibility and compatibility with advanced ..., Problem – Vehicles equipped with the 6L80 or 6L90 transmission may slip when Reverse is selected or have no/delayed reverse engagement, harsh shifts from 2-3 / 4-5 or slips while in fifth, and slipping acceleration when passing. Possible DTCs include P0776, P2715 or P2723. Solution – This transmission problem may be caused by a cracked 1-2 ..., Overview. The Hydra-Matic 6L80 is six-speed automatic transmission for rear-drive cars, designed with modular flexibility and compatibility with advanced …, 6-speed 6L80 automatic: $3,899; 8-speed 8L90 automatic: $5,894; 10-speed Hydra-Matic 10L80 MF6 automatic: $5,700; Common Chevy Silverado 1500 Transmission Problems. Chevy Silverado’s and their transmissions are known to have quite a few problems but it’s far from the only issue with these trucks., GM Hydra-Matic 10L80 10-Speed Automatic Transmission. The General Motors Hydra-Matic 10-speed 10L80 automatic transmissions is a heavy duty (high performance) variant of the Hydra-Matic 10LXX ..., The manufacture of the 6L80 began in 2005 and was released in most GM vehicles in the model year of 2006. The transmission lasted until 2016, available in 6L80 vs 6L90 versions. 6L90 Transmission. GM introduced a stronger variant of the 6L80 transmission within a year, known as the 6L90 transmission, RPO code MYD., 722.9 4-matic transfer case; bw4409 ml class transfer case '97-'03; dcs itc 1-speed '03+ magna-steyr itc 2-speed; mp1128 mp1628 '11+ ford; ... fits 6l80: '10+ gm 6-speed transmission. related products. sale. 6l45 6l50 6l80 6l90 6t70 6t75 transmission tehcm pressure switch repair kit psr-5 transgo fits '07-'21 gm., A new survey from PC Matic finds more people can't remember the last time they changed their online passwords and that's causing cyber security issues. When 1 in 4 or 25% of respon..., Chevrolet testing has shown the ZL1 with the available 10-speed has faster shift times than the Porsche PDK dual-clutch transmission. In fact, the 1-2 upshift is 36-percent quicker than the PDK, while the 2-3 and 3-4 upshifts are 27-percent and 26-percent quicker, respectively. “You touch the paddle and the gear changes with immediacy ..., They are not my problem; they are my children. And if ever my seemingly incessant complaining and confessional-style oversharing has lead you to believe otherwise, let me clear thi..., Information about rebuild transmission GM 6L45 /50, 6L80 /90. 6L 45/6L 80 is a compact, hi-tech and reliable transmission, which features an automatic control over most of gearbox functions. This improves both acceleration performance and fuel economy. When properly operated and regularly maintained, this gearbox is able to reach the point over ..., This is the DOWNLOAD link for The new Hydra-matic 6L80 (6 Speed) TechTran. The Hydra 6L80 is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was first introduced in the 2006 Corvette with the 6.0L engine, Cadillac STSV/XLRV with the 4.4L engine, and is …, Everyone's feet are different, but certain everyday foot problems are common. Learn about these annoying foot conditions and how to improve them here. Advertisement Feet are like s..., Dealing with a problem can fee a lot more manageable when you have a plan. Try these 5 steps for becoming a better problem-solver. Problem-solving doesn’t have to be stressful. Whe..., GM 6L45/6L50/6L80/6L90 Contains 6 Plugs & 9 O-rings!!! 6 pack!! 104740-23K Transmission Jobber Supply New, Overfilling will cause the transmission to overheat and set code P0218 — transmission fluid over temperature. The 6T40/45 uses a thermal element to control the oil level in the unit, similar to other GM units. Known as a fluid level control valve (figure 6), the unit is basically a thermally controlled standpipe., Pixlr-o-matic is a flash-based webapp that allows users to add effects to images in a way reminiscent of Hipstamatic on the iPhone. The process moves the user through three process..., The GM 8L90 Hydra-Matic 8-speed transmission can perform wide open throttle upshifts 8/100 of a second faster than Porsche’s DCT gearbox. The 8L90 transmission can also be manually shifted via steering wheel paddles. And it operates far smoother than a double clutch transmission, thanks to the turbine dampers in the 8L90 torque converter. , 2006-2015 GM Passenger Cars and Trucks equipped with 6L80 or 6L90 Automatic Transmission (RPO MYC or MYD) Condition. After installing the service pump cover P/N 24248573, a transmission may have low line pressure. If the low line pressure is not identified and corrected, clutches may be damaged during operation., A Hydra-Matic Drive transmission, produced between 1939 and 1956, on display at the Ypsilanti Automotive Heritage Museum. Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the …, Nov 22, 2022 · The 6L80 replaced the older 4L60 four-speed automatic in many truck and SUV applications as well as some rear-wheel drive cars. The main problems that have been reported with the 6L80 transmission are: 1) Shuddering/Vibration – Some drivers have reported a shuddering or vibration feeling when driving at highway speeds. , It is seen as an improvement over the 6L80 model but is installed in a limited number of vehicle models. Upgraded Features Of The 6L90 MYD. The 6L90 is an upgrade over the 6L80 transmission and inside this transmission, you will find the following features: 1. Modular features- this includes upgrading the hydra-matic design of the 6L80., The Hydra-Matic 6L80 six-speed automatic transmission is mated to the Vortec 6.2L V8 (L92) engine in the 2008 model year Hummer H2 and SUT. This new application is equipped with a transmission-mounted transfer case to direct power to both rear and front axles. Modular Design for Application Flexibility., The 8L90 can be identified by the following RPO codes, M5Q, M5X and new for 2019, MQE while the 8L45 is identified by the RPO codes, M5T, M5N. The TCM is a standalone Delphi unit which is shared with several other GM applications such as the 9T, and 10L transmissions. The 8L90/8L45 transmissions utilize five clutches to provide eight forward ...