Rear Brakes Locking Up

By grant richmond
December 9, 2008 in Ask A GM Technician

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grant richmond

Posted December 9, 2008

I have a 99 gm 2500 with the heavy duty brakes. When it turns cold the rear brakes lock up (it does have abs and that is working fine) both sides lock up when you touch the pedal. The problem doesn't go away when you add weight. Any help would be greatly appreciated.

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