Suspension or Exhaust Issue Over Bumps
A noise from under the car when going over bumps typically indicates a worn suspension component (like sway bar links, ball joints, or bushings) or a loose exhaust system. The 2020 Ford F-150 is known for premature wear of stabilizer bar links and exhaust hangers.
Diagnosis Details
Possible Causes
Worn stabilizer bar (sway bar) end links – these often produce a clunking or rattling noise over bumps.
Loose or broken exhaust hanger causing the exhaust pipe to contact the underbody.
Worn ball joints or control arm bushings – less common but possible with higher mileage.
Related OBD-II Codes
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What You Should Do
Inspect the front and rear stabilizer bar links for play or damage.
Check exhaust hangers for breakage and ensure the exhaust system is secure.
Also examine ball joints and control arm bushings for wear.
A road test with a helper listening under the vehicle can help pinpoint the source.
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.
