Preliminary Inspection
WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
- Verify on-board diagnostics are working by performing DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS in appropriate SELF-DIAGNOSTICS article.
- Ensure PCM and MIL functions properly.
- Ensure no DTCs (except intermittent) are stored.
- Ensure fuel control system operates properly. See appropriate BASIC DIAGNOSTIC PROCEDURES article.
- Perform fuel system pressure test.
- Visually inspect all systems.
After all checks have been performed, verify customer complaint and locate correct symptom. Check items indicated under that symptom. Not all items listed under each symptom apply to all models and systems. These procedures normally recommend testing of a specific system or component, such as EGR, TCC, etc. See appropriate SYSTEM & COMPONENT TESTING article for test procedures.