Question about 2002 GMC Savana

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2002 3500 gmc savana right rear caliper seizedup.replaced with new parts.next day seizedup again. replaced with new again.next day left front caliper seizedup.2 piston cal.compressed each piston seprately worked fine.go to comp.both only one bottoms out at a time.Is it possibly a hydraulic control unit problem.are there valves or selonoids in that unit that are sticking not letting pistons retract.brake pedal feels fine.

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Make sure you bleed all four wheels.

Posted on Jul 21, 2009

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