Get thud sound after applying brake


Asked by May 03, 2012 at 08:54 PM about the Chevrolet Silverado 2500HD

Question type: Maintenance & Repair

After applying brake and coming to a stop, get a thud sound like something is loose.  Same sound occurs when brake is released.  Had new rear rotors and brake pads installed along with new shocks.  Sound still there.  Any ideas?

4 Answers


ball joints? u joints if applicable


Can you tell if it is coming from the front or the back?


I had a '99 Silverado 1500 4x4 that did the same thing. It was a common issue, and it turned out to be the rear leaf springs moving a bit on each other, causing a slight bumping noise upon braking & accelerating. The dealer actually installed these plastic end caps onto the main leaf, and it seemed to cure the problem as it added a cushion between the two pieces of steel/leafs. That was a GM fix for that problem. I haven't had that issue with my '07 2500 HD & I tow a lot, but sounds like it could be the same issue as you checked those other things already. Is your truck under warranty?? Ask your local GM Service people about it & see what they say.


are the lugnuts tight on all the wheels? there have been times after work has been done on a vehicle, that simple procedures have been forgetten which can lead to major issues.

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