Section 39 (Engine Controls - Trouble Shooting - No Codes - 4.3L): Symptoms: Notes
WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. 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
.
NOTE:
If PCM displays data but engine fails to start, see NO-START DIAGNOSIS
in BASIC DIAGNOSTIC PROCEDURES - 4.3L CHEVY EXPRESS & SAVANA article.