When the fronts grab it can be from a couple of things.1. If both calipers are siezing, 2. If there is a problem with either the master cylinder or proportioning valve, or3. Even the brake booster can cause this, if you have ABS, it could be the hydraulic control unit. This system has fault codes with self diagnostics used with a scan tool. It is rare that both calipers sieze up at the same time. Fluid contamination can cause this also. Please have them checked out for safety reasons.
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Wednesday, March 17th, 2010 AT 9:52 PM