2006 GMC Sierra terrible vibration

2006 GMC SIERRA
101,000 MILES • V8 • 4WD • AUTOMATIC
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RRBUCHANAN
  • MEMBER
  • 2 POSTS
I have a 2006 GMC 4X4 with factory 20 inch rims. It has a terrible vibration/shake, when the brakes are applied. Doesn't appear to be related to warped rotors as they were turned once and later replaced, with no improvement or change either time. Shake is inconsistent, sometimes it nearly shakes the steering wheel out of your hand, other times it is not noticeable or nearly non-existent. Always present when attempting to slow while coasting down a hill. Have rotated tires with no change and also replaced a bad wheel bearing on the front driver side, also with no change to vibration. Sometimes you can rapidly pump brakes and stop the wobble, other times this has no affect, however when the brakes are released the shake always stops.
Sep 12, 2009 at 8:09 AM
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RACEFAN966
  • ASE Certified Mechanic
  • 5,029 POSTS
  • ASE Certified Mechanic
Ok check the tire rod ends and the idle arm and pitman arm for any play. Something in the steering must be worn for it do this if everything in the brakes are good. Let me know what you find.
Sep 12, 2009 at 8:56 AM
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