The next time this happens, stop on a slight incline, shift to neutral, and release the brakes to verify the vehicle doesn't creep downhill on its own. Place a block downhill about six inches from one tire so you don't have to go chasing after the vehicle. Loosen the steel lines at the master cylinder to see if any fluid pressure releases. If it does, and the brakes release, we have to discuss the brake fluid being contaminated with a petroleum product. That will get to be a REAL expensive repair, but there is one more thing to check first if the master cylinder or power brake booster was recently replaced.
If the brakes do not release at the master cylinder, open the bleeder screws on the front calipers to see if that helps. We're looking for the place the brake fluid is being trapped. If one of them lets a brake release, suspect a constricted rubber flex hose.
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Wednesday, August 21st, 2013 AT 1:36 PM