How does an automatic transmission disengage in a car?
How does an automatic transmission disengage in a car? When the engine is at idle there is less pressure trying to turn the transmission side of the torque converter, so you are able to hold the vehicle stationary with the brakes. If it disengaged every time you stopped it would eventually damage the transmission. It would be like shifting from neutral to drive manually every time you stopped. What happens if you disengage the transmission at idle? It doesn’t. Even at idle your engine can still creep the car forward (or backward). When the engine is at idle there is...