TrailBlazer 4WD L6-4.2L VIN S (2002)
Crankshaft Position Sensor: Service and Repair
Crankshaft Position (CKP) Sensor Replacement
REMOVAL PROCEDURE
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the crankshaft position (CKP) sensor harness connector.
3. Remove the CKP sensor retaining bolt.
4. Remove the CKP sensor from the engine block.
INSTALLATION PROCEDURE
IMPORTANT: Inspect the sensor O-ring for the following conditions:
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Any wear
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Any cracks
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Any leakage
Replace the O-ring if necessary. Lubricate the new O-ring with engine oil before installation.
NOTE: Refer to Fastener Notice in Service Precautions.
1. Install the CKP sensor into the engine block.
Tighten
Tighten the bolt to 10 N.m (89 lb in).
2. Install the CKP sensor retaining bolt.
3. Connect the CKP sensor harness connector.