Crankshaft Position Sensor: Service and Repair

Crankshaft Position Sensor Replacement

Removal Procedure




1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Description and Operation).
2. Disconnect the engine wiring harness electrical connector (3) from the crankshaft position (CKP) sensor (1).




3. Remove the CKP sensor bolt.
4. Remove the CKP sensor from the engine block.
Discard the O-ring seals.

Installation Procedure

1. Install new O-ring seals to the CKP sensor.
2. Lightly lubricate the O-ring seals with clean engine oil.




3. Install the CKP sensor into the engine block.
4. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the CKP sensor bolt threads.

Caution: Refer to Fastener Caution (Fastener Caution).

5. Install the CKP sensor bolt.

Tighten the bolt to 10 Nm (89 lb in).




6. Connect the engine wiring harness electrical connector (3) to the CKP sensor (1).
7. Lower the vehicle.
8. Perform the crankshaft (CKP) system variation learn procedure. Refer to Crankshaft Position System Variation Learn (Testing and Inspection).