Buick century sedan 2000 front wheel knocking when on bumpy road?

shocks checked and are fine what could cause this sound nothing on flat roads just bumpy ones

5 Answers

  • Anonymous
    1 decade ago
    Favorite Answer

    first off from answers before wheel bearing will make a humming noise when they are going bad. check the springs around the shocks make sure they are seated properly and are not broken under the rubber coating because water is held in by the rubber and rusts out the springs. Also check the busings in the control arms if they are worn you will hear this noise as the suspension jounces and rebounds during driving. also check swaybar bushings and links make sure they are tight and not broken and moving around. Also make sure your balljoints are not worn they will make knocking noises on bumpy roads and crunching noises sometimes around turns.

    Source(s): AYES/NATEF student
  • 1 decade ago

    Let a qualified mechanic check on the upper and lower ball joints (Left & right), suspension bushings and wheel bearings. It would also help checking the stabilizer bushings and linkages, if any.

  • 1 decade ago

    there is no way its a brake caliper. it might be that your spring is broken, something with the strut, ball joints are a good possiblity too. also maybe the control arm? these are just guesses of course

  • 1 decade ago

    check the wheel bearings I am serious could be dangerous. Get it checked out cuz is pretty difficult to diagnose unless you lift the vehicle off the grounds.

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  • 1 decade ago

    mabey loose brake calipers,or strut top bearing.

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