Exhaust Noise on Acceleration
An unusual noise from the exhaust during acceleration often indicates a leak or obstruction in the exhaust system, such as a cracked manifold, blown gasket, or damaged muffler. This can affect engine performance and emissions.
Diagnosis Details
Possible Causes
Exhaust manifold leak or crack
Blown exhaust gasket (manifold or flange)
Damaged muffler or resonator
Catalytic converter failure or clog
Loose or broken exhaust hanger
Related OBD-II Codes
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What You Should Do
Inspect the exhaust system for visible damage, rust holes, or loose components.
Listen for the noise location while the engine is running and revving.
Check manifold bolts and gaskets.
If a leak is found, repair or replace the affected part.
For catalytic converter issues, a diagnostic scan may be needed.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
