Search results
-
D
2022 x71 Tcm reprogramm?
So I have 22z71 suburban with 59665 miles. Just under the warranty period. Noticed some noise and shutter between 2nd and 3rd gear. Dealership wants $700 for a tranny flush and TCM reprogram. IMO this should be covered by warranty? Thoughts. I have a tuning chip to help with throttle...- Daisydog229
- Thread
- Replies: 1
- Forum: Engine & Drivetrain
