Section 231 (Engine Controls - Trouble Shooting - No Codes - 6.6L): Symptoms: Symptoms
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before proceeding with any symptom diagnosis, perform PRELIMINARY INSPECTION
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Symptom checks should not be used unless symptom occurs while vehicle is being tested. To reduce diagnostic time, ensure steps in BASIC DIAGNOSTIC PROCEDURES - 6.6L SIERRA & SILVERADO - DIESEL and SELF DIAGNOSTICS - 6.6L SIERRA & SILVERADO - DIESEL articles were performed before diagnosing a symptom. Symptoms available for diagnosis include: