What happens when a car reaches stall speed?
What happens when a car reaches stall speed? If the vehicle isn’t moving by the time the impeller reaches the stall speed, either it will start to move, or the engine RPM will no longer increase. In other words, stall speed is the engine RPM at which the torque converter transfers the power of the engine to the transmission. What happens when engine RPM drops below 800? However, when the engine RPM drops below the normal range of 800 RPM (for most cars), it is more than likely that you are dealing with an IAC valve problem. In cases where...