Engine All of the following symptoms indicate problems with your engine. Diagnosis and repair are needed. Difficulty starting the engine. Rough idling or stalling. Poor fuel economy.
Engine continues running when key is turned off.
Transmission Poor transmission performance may come from actual component failure or a simple disconnected hose or plugged filter. Delayed or no response when shifting from neutral to drive or reverse. Failure to shift during normal acceleration. Slippage during acceleration. The engine speeds up, but the vehicle does not respond.