Sounds typical of a sticking caliper. First, when it begins dragging again, stop and open the bleeder screw to see if it releases. If it does not, replace both front calipers. They should be replaced in pairs to maintain even braking side-to-side. If the caliper does release when you open the bleeder screw, something has the brake fluid trapped. Work your way down from the master cylinder opening various fittings. If the brake releases right from the steel line on the master cylinder, suspect fluid contaminated with petroleum product causing the rubber seals to swell and grow past the return ports. Also look for the use of a metal anchor bracket crimped around the rubber brake hose by the wheel. Rust can build up inside that crimp and constrict the hose so fluid can be forced through from the high pressure on the brake pedal but it can't release back to the master cylinder.
Sunday, April 10th, 2011 AT 5:06 PM