Exhaust System Leak or Loose Component
A continuous noise from under the vehicle could indicate an exhaust leak, a loose heat shield, or a failing muffler. This is common on the 2020 Ford F-150 and should be inspected promptly to prevent further damage.
Diagnosis Details
Possible Causes
Exhaust system leak (cracked manifold, blown gasket, or rusted pipe)
Loose or corroded heat shield vibrating against the undercarriage
Failing muffler or catalytic converter internal damage
Related OBD-II Codes
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What You Should Do
Inspect the underside of the vehicle for visible exhaust leaks, loose heat shields, or damaged components.
Start the engine and listen for the noise location.
Tighten any loose shields, and replace any leaking exhaust parts as needed.
If the noise persists, have a professional check the exhaust system.
Related Repairs
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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.
