Diagnose Unusual Vehicle Noises to Prevent Damage

Cost Savings

Checklist Tasks

• Record the noise at various speeds and conditions to help with diagnosis.
• Check heat shields under the car with a rubber mallet for loose or rattling metal.
• Inspect wheel wells for debris or stones that could cause clicking or grinding.
• Test brake operation at low speed to identify squealing or grinding noises.
• Examine visible belts for fraying or tension loss to locate chirping or squealing sources.
• Listen for noise changes when turning fully to detect worn CV joints or steering issues.
• Check under the hood for loose fasteners or covers that may vibrate.
• Tap exhaust hangers and joints to find loose fittings that rattle or clunk.
• Observe if the noise changes with engine RPM to distinguish engine from drivetrain issues.
• Inspect underbody panels for missing clips or damage that may flap at speed.
• Test electrical accessories for buzzing or whining noises traced to specific components.
• Check tire tread and sidewalls for embedded objects or uneven wear causing thumps.