Exhaust Noise at Idle - 2020 Jeep Wrangler
An unusual noise from the exhaust system at idle could indicate an exhaust leak, loose heat shield, or a failing exhaust component. The noise may be a ticking, hissing, or rumbling sound.
Diagnosis Details
Possible Causes
Exhaust manifold gasket leak or cracked manifold
Loose or damaged heat shield vibrating against the exhaust pipe
Catalytic converter internal failure or blockage
Related OBD-II Codes
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What You Should Do
Inspect the exhaust system for visible leaks, loose shields, or damage.
Listen for changes in noise when the engine is cold vs.
warm.
Check for exhaust fumes inside the cabin.
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.
