6l80e bad tcm. Understanding this unit’s operation allows you to make...
6l80e bad tcm. Understanding this unit’s operation allows you to make an informed decision on the direction to turn for solving your issue. The GM 6L80 and 6L90 TEHCM houses the transmission control module (TCM), or computer. A code finally popped up with a p2723. The same week, in my The 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. Whether it is on the control side or the internal function of the unit, transmission malfunctions will cause the customer to bring the vehicle to you with driveability complaints. In this Drivetrain 101, we’ll analyze all of its most prolific problems, solutions and upgrades. The trans was completely The GM 6L80 and 6L90 TEHCM houses the transmission control module (TCM), or computer. Become a 6L80-E transmission expert now! Oct 13, 2023 · Most 6L80 failures are pressure-related. Oct 28, 2025 · Learn everything about 6L80 and 6L90 TEHCMs — common pressure switch and solenoid failures, year-specific Tag IDs, how to identify your module, and Monster’s best practices for replacement and programming. . Oct 23, 2016 · Problem solved- my bad, there are 2 different PID s for "trans temp" the PID in the engine controller stays at 32, the PID under TCM shows actual trans temp. Lost all gears, including Dec 14, 2024 · Hi all, as everyone knows GM has had a range of troublesome transmissions with problems that ranged from shuddering, slipping, hard shift, delayed shift, downshift bumps, etc. Apr 29, 2016 · Has anyone noticed a rash of failed 6L80 and 6L90 transmission? I was under the impression they were pretty solid units but now I’m not so sure. Noticed predominantly after driving for a period of time and warmed up. I’m looking for a little advice. Jan 18, 2025 · 2020 Chevy Suburban w/ 110,000 miles Before tear down issues: progressive slipping/flares from drive. it started slipping from a dead stop. Able to engage and drive after a period of cool down. Become a 6L80-E and 6L90-E expert now! Mar 8, 2023 · Learn common causes and diagnostic repair tips for 6L45, 6L50, 6L80, 6L90 transmission problems like no Forward, no Reverse and the abnormal pressure condition. The eight solenoids are connected to the TCM via a lead frame, all of which are over-molded in the plastic housing and not accessible or serviceable separately. And obviously there is a reason that causes this to happen but is there an in depth reasoning as to why each problem Jan 17, 2018 · Read this if you are swapping 6L80 TCM Jump to Latest 105K views 2 replies 3 participants last post by gqshirley Jan 17, 2018 G Oct 22, 2023 · Folks, Long but detailed post. 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. 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 situation. My 2014 6l80 4wd transmission went bad at 165,000 miles. It was still moving in forward and reverse when it was towed to a local reputable transmission specialist. The General Motors 6L80-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. I changed a 6L90 at my regular job (fleet of mostly Express 3500 vans) in a 2016 Express with just under 130,000 miles on it. ddjiqq eyrjz xkons iby bltw wsfpy kqjj tloz fyjnd brlp
