The solenoid in an automatic transmission is essentially a mechanism with a valve that controls fluid. The transmission control unit (TCU) houses the solenoid and if the valve doesn't operate ...

Trouble is, that left the car’s computer convinced that the many solenoids and sensors ... To convince the transmission control module that a working automatic was still installed and clear ...

Ford has divulged the technical intricacies of its new 10-speed automatic transmission ... by new direct-acting electric solenoids that give more control over the process and deliver a quicker ...

If your desire is to put a current-tech 8- or 10-speed automatic transmission in your car, you have fewer options. These clutch-to-clutch transmissions are far more complex to control, which may ...

An automatic transmission runs off a TCM or transmission control module that collects data from sensors in the engine, so it knows when to shift. This computer is missing from a manual ...