Transmission

Modern automatic transmissions are run by a computer that uses sensors, solenoids and fluid pressure. A harsh or late shift can come from low or worn fluid, a sensor or software fault, or internal wear.

Transmission replacement is on TRUE Automotive’s service list. Not every shifting problem needs a new transmission, so the diagnosis comes first.

Many automatics have no dipstick. Checking the fluid can mean raising the car and reading the level at a set fluid temperature, following the manufacturer’s procedure.

When the transmission computer has stored a fault, the shift problem may come from a sensor or solenoid rather than internal wear. Those repairs cost far less than a replacement.