Initial Inspection and Diagnostic Overview
Inspection and Verification1. Verify the customer concern by running the engine or by road testing the vehicle to duplicate the condition.
2. Visually inspect the components of the exhaust system and related controls that may affect exhaust gas quality or loss of power.
3. Visually inspect for obvious signs of mechanical or electrical damage.
4. Verify that the exhaust system is installed correctly, with the clamps correctly located and tightened to specifications.
5. If the concern is not visually evident, determine the symptom. GO to Symptom Chart. Symptom Related Diagnostic Procedures