Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Sonoma, 2003 GMC Safari, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
- Knock sensor head must be clear of the hoses, brackets, and engine electrical wiring.