Circuit/System Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure that the CKP sensor circuits are not routed too closely to the fuel injector wiring after-market add-on electrical equipment, solenoids, relays or motors.
- Ignition OFF, inspect the CKP sensor for correct installation.
- If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
- Inspect the engine for the following conditions:
- The engine oil for debris
- The crankshaft reluctor wheel for damage or foreign material passing between the sensor and reluctor wheel
- The timing chain, tensioner, and sprockets for wear or damage
- If no other condition is found, replace the CKP sensor.