CLUMPING NOISE

2002 CHRYSLER 300
156,000 MILES • 6 CYL • FWD
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AHEATLEY
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  • 1 POST
MY CAR MAKES A CLUMPING NOISE (METAL ON METAL SOUND) IN THE FRONT OF THE CAR MAINLY ON THE PASSENGER SIDE. THE SHOCKS, INNER AND OUTER TIE RODS HAVE ALREADY BEEN REPLACED. WHAT CAN BE MAKING THIS NOISE?
Jan 30, 2011 at 8:43 PM
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CARADIODOC
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Struts and tie rod ends won't do that. If the noise occurs once per wheel revolution, look for rust buildup on the brake rotor, worn brake pads, or even a wheel bearing. Wheel bearings typically make a steady buzzing noise like an airplane engine, and it is impossible to tell which side it's coming from. Even though it can sound like it's coming from the right side, you must listen next to each one with a stethoscope. (Don't hang from the bottom of the car while a helper drives it)! Run it in gear with the front end raised off the ground, then listen with the stethoscope.

If the noise occurs randomly, especially over bumpy roads, look closer at the anti-sway bar links and bushings. If you can also feel it in the steering wheel, look at the lower control arm bushings.

Also look at the brake caliper and inside of the wheel for shiny spots. A missing caliper bolt will let the caliper lift up and hit the wheel. Some tires sit so close to the struts that a broken belt can cause the sidewall to rub on the strut. That should have been seen by the person who replaced the struts. Also, the front end would have had to been aligned after the struts and tie rod ends were replaced. Didn't they hear the noise was still there on the test drive after the alignment?

caradiodoc
Jan 31, 2011 at 1:37 AM