Exhaust noise during acceleration
A 2019 Honda Accord produces an unusual noise from the exhaust system when accelerating. This could indicate an exhaust leak, a damaged muffler, or a loose heat shield.
Diagnosis Details
Possible Causes
Exhaust leak at a gasket or joint (e.g., manifold, catalytic converter, or muffler connection)
Damaged or rusted muffler or resonator
Loose or broken heat shield vibrating against the exhaust pipe
Related OBD-II Codes
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What You Should Do
Inspect the entire exhaust system for visible holes, cracks, or loose components.
Check gaskets and joints for leaks (listen for hissing or tapping).
Tighten any loose heat shields.
If the muffler is damaged, replace it.
For a persistent leak, visit a mechanic for a professional exhaust inspection.
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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.
