GMC Crankshaft Position (CKP) Sensor Replaced

Crankshaft Position Sensor is a magnetic or hall effect sensor that
provides the computer with the engine speed and crankshaft position so
proper injector sequence and ignition spark can be determined. It allows
the ECC (engine control computer) to change injector openings as the
engine RPM changes. It also signals the coil packs to fire the spark
plugs.




The details to replace