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.

A significant number of GM truck and SUV owners remain sidelined due to ongoing delays tied to a backorder on transmission valve bodies, a critical component of the automatic transmission system. At ...

A growing number of GM truck and SUV owners are facing major service delays as the result of a nationwide backorder on transmission valve bodies. As covered previously, some vehicles may experience a ...

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 ...

General Motors on Wednesday said it is recalling nearly 462,000 diesel-engine SUVs and pickup trucks in the U.S. because of a faulty transmission control valve that may fail and cause the rear wheels ...

The problem: Drivers may note faulty shift patterns along with transmission fault indicator messages on the dash. This may be due to faulty automatic transmission fluid or the transmission control ...

If you're a control freak, late-model electronic transmissions are just what you need to modernize your classic car, and if you decide to go that route, a transmission control module is a must-have.

General Motors' 8-speed transmissions are known to shake while accelerating, produce rough shifts going into second gear, and ...

Swapping an automatic transmission for a three-pedal manual transmission has been a modification for a long time. Whether it’s for maximizing enjoyment behind the wheel, upgrading to a sturdier ...

The transmission valve body is among the most important components of your vehicle's transmission system, yet it often goes unnoticed until something goes wrong. As a key player in the functionality ...