LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 851 (Engine Exhaust System - 5.7L) >> Diagnostic Information and Procedures >> Exhaust Noise

Exhaust Noise

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Exhaust Noise

Condition Action
CAUTION: Refer to Hot Exhaust System Caution in Cautions and Notices.
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 (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.
  1. Compare to a known good vehicle.
  2. Inspect for a damaged or failed muffler.
  3. Replace the faulty muffler. Refer to one of the following procedures:

    Muffler Replacement - Left or Muffler Replacement - Right 

External rattle or vibration noise.
  1. Inspect for a bent or loose hanger, loose heat shield, or loose clamp.
  2. Inspect for a exhaust pipe causing interference.
  3. Repair or replace the affected component. Refer to the affected component's service procedure.
Internal rattle.
  1. Test the components by tapping with a rubber mallet to confirm a rattle.
  2. Replace the faulty catalytic converter, resonator, or muffler. Refer to one of the following procedures: