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What Causes My Vehicle to Make Clunking Noises when Driving Over Bumps Even Though My Shocks are New?

August 2, 2011

Most likely there is nothing wrong with the replacement units, but a metallic "clunking noise" typically indicates loose or worn mounting hardware. If the noise is present with a replacement shock absorber, check that the mountings are tightened securely, and look for other worn suspension parts. Some shock absorbers utilize a "clevis" type mount, which must squeeze the sides of the shock's "mounting sleeve" very securely in order to prevent noise. If the noise is present with a strut, then the upper bearing plate should be inspected and replaced if necessary. Old mounting bolts can stretch if over-torqued or if they have been loosened and retightened multiple times, resulting in a noise. If mounting bolts no longer hold their original torque, or if they have been stretched, they should be replaced.

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