Exhaust Noise at Idle - Toyota Camry 2020
The vehicle produces an unusual noise from the exhaust system when idling. This could indicate an exhaust leak, a failing muffler, or a loose heat shield.
Diagnosis Details
Possible Causes
Exhaust leak at gasket or joint (e.g., manifold, catalytic converter, or muffler connection)
Loose or damaged heat shield vibrating against the exhaust pipe
Internal muffler failure (broken baffles or rusted-through sections)
Related OBD-II Codes
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What You Should Do
Inspect the exhaust system for visible holes, cracks, or loose components.
Check all gaskets and joints for leaks.
Tighten or replace any loose heat shields.
If the muffler is damaged, replace it.
A professional exhaust system inspection is recommended.
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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.
