6l90 transmission codes. 8L. That code points to torque converter clutch slip. 6L80 6L90 AUTOMATIC GEARBOX manual is guaranteed to be fully useful to save your precious time. Friction material wears fast under heat and load. Connect the DT-47825-10 - jumper harness between the vehicle wire harness electrical connector, and the control solenoid valve assembly electrical * Perform the Service Fast Learn Adapts (6L45/6L50/6L80/6L90 - Automatic Transmission) following all transmission related repairs. Common 6L80 / 6L90 TEHCM Failures Pressure Switch Failure: The internal switch membranes crack, causing erratic shift timing and codes like P0877 or P2715. The factory JMBX-style converter used a thin single-disc clutch. 6L80 - 6L90 Transmission Valve Body Plate Valve Body to Case Seals Service - Installation Kit fits all units 2010-upFeatures these Genuine GM Components: (1) Valve Body Separator Plate with Bonded Gaskets - 4th Design (Latest Update) Feb 8, 2026 · 700r4, 4L60E, 4L65E, 4L70E, 4L80E, 6L90 Chevy/GMC Transmission Help Jamie McLeod󰞋Feb 8󰞋󱟠 󳄫 6L80 6L90 Input and Output Speed Sensors with Harness Fits all 2006-2011 6L80/6L90 These are easily identified by the silver-color brackets. It is the manual used in the local service repair shop. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement (6L45/6L50/6L80/6L90 - Automatic Transmission). TRANSMISSION . 2. 5 inches longer to fit a six-pinion input gearset, reinforced clutch packs, and a thicker output shaft. GM 6L transmission The 6L XX family is a series of 6-speed longitudinally-mounted automatic transmissions produced by General Motors. This professional technical manual contains service, maintenance, and troubleshooting information for your 6L80 6L90 AUTOMATIC GEARBOX. GM programmed steady TCC slip for fuel economy and NVH control. Feb 19, 2025 · Was throwing a P0700 and P0741 code so I took to a local transmission shop. The shop dropped the pan and said that there was very little debris and the fluid and filter actually look pretty good. the transmission is turning into a 6Lslippy and I found a low mileage 6L90 with the transmission code 1DGA can i use this transmission in my truck? What are the differences?? Surely someone out there knows the differences in Jan 22, 2026 · The 6L90 (RPO MYD) shares its bloodline with the lighter 6L80 (RPO MYC), but it carries heavier bones. 6L50 6L80 6L90 Transmission Neutral Safety Switch with Harness Fits all 2006-up 6L50/6L80/6L90 Detailed repair manual for the 2009 Chevrolet Tahoe 2WD V8-4. Brian's Autoshop and 2 others 3 reactions · 11 comments Hunter Wamba 700r4, 4L60E, 4L65E, 4L70E, 4L80E, 6L90 Chevy/GMC Transmission Help 24w · Public Here you can find the most complete service and repair manual for 6L80 6L90 AUTOMATIC GEARBOX. 5% positive 2 days ago · Additional Product Features Notes Description--Auto Trans, 6l90, 6 Speed Trans, Transmission Sub Type Automatic Transmission Shifter Cable Lever, Automatic Transmission Range Selector Lever Part Type Transmission Hard Parts 3 days ago · Scan it and P0741 often shows up. * Control Module References (Programming and Relearning) for control solenoid valve assembly replacement, setup, and programming. Jan 19, 2026 · Automatic Transmission 6L90 Oil Cooler Hose 2007 Silverado Sierra 2500HD 3500HD priorityautomotive 2015 (39096) 99. This tool kit includes enough discs and seals to rebuild one TEHCM unit. 4 days ago · 6L90E transmission problems? We have replacement new, used, & rebuilt GM 6L90 transmissions for sale with fast shipping and a 5-year warranty. The Sensors themselves -are- different than later Black-color brackets, transmission will not work if the wrong ones are installed! Save hundreds of dollars by repairing vs. 6L80 / 6L90 TEHCM Problems & Solutions In an effort to consolidate multiple transmission parts into a single unit, the 6L80 / 6L90 TEHCM combines the functions of the TCM (transmission control module), solenoids, pressure switches and temperature sensors. The case runs nearly 1. Oct 28, 2025 · This integration makes the transmission smarter but also introduces unique failure points if fluid quality or electronics degrade. . In the 6L80 and 6L90, the converter is the usual starting point. Ignition OFF, remove the control solenoid valve assembly. Apr 30, 2025 · Hey all, I have a 2013 2500hd with the 6l90 with the stamp code 3DHA. Sep 17, 2023 · Is your 6l90 starting to act up and your vehicle is showing a check engine light? Odds are, you’ll need to pull the codes to see what’s going on. replacement! Fits 2006-up 6L45/50, 6L80/90 Sonnax pressure switch installation tool kit 124740-TL30 allows fast, easy installation of laminate discs and seals to restore normal switch operation in listed GM 6-speed transmissions. oqw qwvh agmaib jqn dtgucxh zwdxejje brvjuol ogrbsy yxzr rspo