DEFINITION: An audible or physical noise due to a faulty component or damaged components causing a loose or misaligned exhaust system resulting in a rattle or vibration noise. Refer to Symptoms - Engine Exhaust

Popping or hissing noise

Exhaust leak. Refer to Exhaust Leakage

Loud exhaust

1. Compare to a known good vehicle.
2. Inspect for a damaged or failed silencer.
3. Replace the faulty silencer. Refer to Exhaust Muffler Replacement

External rattle or vibration noise

1. Inspect for a bent or loose hanger, loose heat shield, or loose clamp.
2. Inspect for an exhaust pipe causing interference.
3. Repair or replace the affected component.

Internal rattle

1. Test the components by tapping with a rubber mallet to confirm a rattle.
2. Replace the faulty catalytic converter, or silencer. Refer to one of the following procedures:

•	Catalytic Converter Replacement

•	Exhaust Muffler Replacement