October 27, 2014
How to Rebuild TEHCM Pressure Switches in GM 6L45/50/80/90 & Gen. 1 6T70/75 Transmissions
Presented by Sonnax
GM 6-speed transmissions often set various trouble codes caused by fluid pressure switch failure. Replacement of the expensive TEHCM in which the switches live was traditionally the only way to restore normal shift operation, but now there’s a better alternative: rebuilding the switches.
Sonnax's patented rebuild kits for GM 6L45, 6L50, 6L80, 6L90 and Gen. 1 6T70, 6T75 transmissions contain exactly the right tools and parts for fast, safe installation of new pressure switch laminate discs and seals. There’s no coaxing, no practice, just successful switch rebuilds the first time, every time.
Watch the video to learn how this simple, affordable technique will save you hundreds of dollars and keep the TEHCM out of the boneyard. Available products include:
Pressure Switch Rebuild Kit (40 Sets of Seals & Discs) Part No. 124740-70K
Pressure Switch Rebuild Installation Tool Kit Part No. 124740-TL70
Learn More
Related Units
6L90 Transmission
6L80 Transmission
6L50 Transmission
6L45 Transmission
6T70 (Gen. 1) Transmission
6T75 (Gen. 1) Transmission
Related Parts
Required
Recommended
6L45, 6L50, 6L80, 6L90, 6T70 (Gen. 1), 6T75 (Gen. 1)
Pressure Switch Rebuild Kit 124740-70K
-
Helps cure:
- Pressure switch codes
- Switch codes
- Pressure control out-of-range codes
- Slips, flares & bind-ups
- Failsafe mode
- Erratic TCC apply
- Harsh shifts
- Shift codes
Required
Recommended
6L45, 6L50, 6L80, 6L90, 6T70 (Gen. 1), 6T75 (Gen. 1)
Pressure Switch Rebuild Installation Tool Kit 124740-TL70
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.