Inspection and Verification
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
If equipped with fire suppression system, refer to FIRE SUPPRESSION SYSTEM
article for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury.
- Verify the customer concern.
- Visually inspect the components of the exhaust system and related controls that may affect exhaust gas quality or loss of power.
- Visually inspect for obvious signs of mechanical damage. Refer to the following chart.VISUAL INSPECTION CHART
Mechanical - Exhaust pipe pinched or crushed
- Damaged muffler
- Broken or damaged exhaust hanger brackets
- Damaged catalytic converter
- Cracked exhaust manifold
- Loose or damaged heat shields
- Verify that the exhaust system is installed correctly, with clamps correctly located and tightened to specification.
- If the fault is not visually evident, determine the symptom. Go to Symptom Chart - Exhaust System or Go to Symptom Chart - Noise, Vibration and Harshness (NVH) .