Section 423 (Engine Controls Troubleshooting - No Codes - 3.8L)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, and 2003 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Preliminary Inspection
- Symptoms
- INTERMITTENTS
- Notes
- Preliminary
- Notes
- Definition
- Harness Or Connector Intermittents
- Electrical Connections Or Wiring
- Control Module Power & Grounds & Component Power & Grounds
- Temperature Sensitivity
- Electromagnetic Interference (EMI) & Electrical Noise
- Incorrect PCM Programming
- Duplicating Failure Conditions
- Scan Tool Snapshot
- Vehicle Data Recorder