A “Check Engine” light on your dashboard could mean anything from a loose gas cap to a wallet-destroying repair in the offing. For [Dean Segovis], his CEL was indicating a fairly serious condition: a ...

Certain units of the 2024 Cadillac CT4 luxury sedan are included in a Service Update issued by General Motors, related to an improperly fastened transmission control valve solenoid bolt the vehicles ...

Transmission Control Module (TCM) faults are not unknown on these early Mazda 3s. Symptoms usually involve erratic shifting, a failure to select gear at all and having the car go into limp-home mode.

General Motors has released an updated Service Bulletin for Chevy Malibu and Chevy Trailblazer units that may be dealing with a transmission issue. According to Service Bulletin number 24-NA-009, 2019 ...

The idea is easy. There are two solenoids controlled by the TCU that select which gear to use by which is off and which is on at any given time. We are going to control solenoid number 2 with a Single ...