my 2004 jeep liberty brakes keep locking up but after a wile they un lock, what is happening and what must i do to fix it....
If both sides are locking up then this is not a solution. If one side only is locking up, it might be the rubber hose extending from the brake caliper to the metal line mounted to the frame. Occasionally, the inside of the hose will crack allowing pressurized fluid to "balloon" thus swelling the line closed. Given a short amount of time, the fluid will depressurize allowing the wheel to rotate, but will re-inflate when brakes are pressed. To check;jack up offending side and carefully loosen the bleed-off located on the caliper(be careful, it may have a high buildup of fluid pressure) If this was the problem, after bleed off, the wheel should rotate freely.
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