Powertrain related symptoms

Engine
The following symptoms indicate engine trouble. Get a diagnosis and schedule the repair.
1. Difficulty starting the engine.
2. The "check engine" light on the instrument panel is lit.
3. Rough idling or stalling.
4. Poor acceleration.
5. Poor fuel economy.
6. Excessive oil use (more than one quart between changes).
7. Engine continues running after the key is removed.

Transmission
Poor transmission performance may come from actual component failure or a simple disconnected hose or plugged filter. Make sure the technician checks the simple items first; transmission repairs normally are expensive. Some of the most common symptoms of transmission problems are:
1. Abrupt or hard shifts between gears.
2. Delayed or no response when shifting from neutral to drive or reverse.
3. Failure to shift during normal acceleration.
4. Slippage during acceleration. The engine speeds up, but the vehicle does not respond.
5. TCM failure and TCC solenoid error codes.
6. Trans Oil leak. ( remember trans oil is very corrosive and can kill the seals).