Shop OEM General Motors Part # 21020140 (21021230). Engine Crankshaft Position Sensor. Saturn. Crankshaft Position Sensor - Repair or Replace A failed crankshaft position sensor will

Sensor. Crankshaft. Position. Assembly - CR/SHF POSN. Engine.
A electronic device used in an internal combustion Engine to monitor the Position or rotational speed of the Crankshaft while this information is used by Engine management systems to control the fuel injection or the ignition system timing and other Engine parameters.

Engine Crankshaft Position Sensor

Fits SC, SC1, SC2, SL, SL1, SL2, SW1, SW2

Saturn.
Crankshaft Position Sensor - Repair or Replace
A failed crankshaft position sensor will often cause your to crank without starting or may cause it to die intermittently. If your check engine light is on as a result, our technicians can diagnose and repair the problem.