Diagnostic Aids
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- The knock sensor must be torqued correctly to 18 ft. lbs. (25 N.m).
- The mounting between the sensor and the engine must be free of burrs, casting flash, and foreign material.
- The knock sensor head must be clear of the hoses, the brackets, and the engine electrical wiring.