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.
Inspect for the following conditions:
- If the CKP or CMP sensor is loose and cannot be tightened replace the sensor.
- Remove the CKP or CMP sensor and replace if the sensor casing is broken, or rattles when shaken.
- Remove the front engine cover and inspect for, excessive camshaft endplay, timing gear misalignment or damage, camshaft reluctor or crankshaft reluctor damage, or for front engine cover damage.