Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2002EXPRESS 1/2 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORSERVICE AND REPAIR
2002 Chevrolet Express 1/2 Ton Van V8-5.7L VIN R
Crankshaft Position Sensor: Service and Repair
2002 Chevrolet Express 1/2 Ton Van V8-5.7L VIN RSECTION Service and Repair
REMOVAL PROCEDURE
IMPORTANT: The CKP system variation learning procedure will need to be performed whenever the crankshaft position (CKP) sensor is removed or replaced. Refer to CKP System Variation Learn Procedure. Programming and Relearning
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the CKP sensor harness connector.
4. Remove the sensor hold down bolt.
5. Remove the sensor from the timing cover.
INSTALLATION PROCEDURE
IMPORTANT: Make certain that the CKP sensor mounting surfaces are clean and free of burrs before installing the CKP sensor.
When installing a CKP sensor make sure the sensor is fully seated and held stationary in the front cover before torquing the hold down bolt into the front cover. A sensor which is not seated may result in erratic operation and lead to the setting of false codes.
1. Install the sensor into the timing cover. Lubricate the O-ring with clean engine oil before installing.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the sensor hold down bolt.
Tighten
Tighten the bolt to 8 N.m (71 lb in).
3. Install the CKP sensor harness connector.
4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle.
5. Connect the negative battery cable.
6. Perform the CKP system variation learn procedure. Programming and Relearning
IMPORTANT: The CKP system variation learning procedure will need to be performed whenever the crankshaft position (CKP) sensor is removed or replaced. Refer to CKP System Variation Learn Procedure. Programming and Relearning
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the CKP sensor harness connector.
4. Remove the sensor hold down bolt.
5. Remove the sensor from the timing cover.
INSTALLATION PROCEDURE
IMPORTANT: Make certain that the CKP sensor mounting surfaces are clean and free of burrs before installing the CKP sensor.
When installing a CKP sensor make sure the sensor is fully seated and held stationary in the front cover before torquing the hold down bolt into the front cover. A sensor which is not seated may result in erratic operation and lead to the setting of false codes.
1. Install the sensor into the timing cover. Lubricate the O-ring with clean engine oil before installing.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the sensor hold down bolt.
Tighten
Tighten the bolt to 8 N.m (71 lb in).
3. Install the CKP sensor harness connector.
4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle.
5. Connect the negative battery cable.
6. Perform the CKP system variation learn procedure. Programming and Relearning
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.