Initial Inspection and Diagnostic Overview
Exhaust SystemInspection and Verification
1. Verify the customer concern by running the engine or 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 damage. Refer to the Visual Inspection Chart.
Visual Inspection Chart
4. Verify that the exhaust system is installed correctly, with clamps correctly located and tightened to specification.
5. If the fault is not visually evident, determine the symptom. GO to Symptom Chart Symptom Related Diagnostic Procedures