Randy Wallace

Randy Wallace

Randy Wallace is an automotive writer with years of hands-on experience working with everyday vehicles, tools, and real maintenance situations. He focuses on how car systems behave over time, what tends to fail first, and which issues are often overlooked until they become inconvenient, costly, or unsafe.

Observations on Transmission Control Module Failures

Transmission Control Module

Transmission control modules (TCMs) play a critical role in the operation of modern vehicles, particularly those equipped with automatic transmissions. These electronic components manage the shifting of gears based on various inputs from the vehicle’s sensors, ensuring smooth transitions and…