Exhaust Noise

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Condition	Action
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, i.e. buzz, groan, hum. Refer to Symptoms - Engine Exhaust prior to beginning this table.
Popping or hissing noise	Exhaust leak-Refer to Exhaust Leakage .
Loud exhaust	Compare to a known good vehicle. Inspect for a damaged or failed muffle. Replace the faulty muffler. Refer to Exhaust Muffler Replacement (LAT or LE5) or Exhaust Muffler Replacement (LZ4) or Exhaust Muffler Replacement (LY7) or Exhaust Muffler Replacement (LCS) .
External rattle or vibration noise	Inspect for a bent or loose hanger, loose heat shield, or loose clamp. Inspect for a exhaust pipe causing interference. Repair or replace the affected component. Refer to the affected component's service procedure.
Internal rattle	Test the components by tapping with a rubber mallet to confirm a rattle. Replace the faulty catalytic converter, or muffler. Refer to one of the following procedures: Exhaust Manifold Replacement (LAT or LE5) Catalytic Converter Replacement Catalytic Converter Replacement - Left Side (LZ4) Catalytic Converter Replacement - Left Side (LY7 ) Catalytic Converter Replacement - Left Side (LCS) Catalytic Converter Replacement - Right Side (LZ4) Catalytic Converter Replacement - Right Side (LY7) Catalytic Converter Replacement - Right Side (LCS) Exhaust Muffler Replacement (LAT or LE5) Exhaust Muffler Replacement (LZ4) Exhaust Muffler Replacement (LY7) Exhaust Muffler Replacement (LCS)