Question about 1986 Lincoln Mark VII

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I have a 86 lincoln mark vii and i have a problem with the right front brake the caliper doesnt want to relase after the brake pedal is released and heats up and smokes piston still moves back and forth easily new pads and rotors. line looks to be good dont know what to do to fix it

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Diagnose,brake flex line, remove the front wheel prepare to use a socket to open the bleeder on the caliper assembly. First have a buddy pump the brakes a few times with engine running. have him hold the brakes on,then as soon as he releases the brakes loosen the bleeder.If you see fluid come out in a squirt,it is a sign that the flex hose has colapsed,not letting the piston retract from the disc rotor. And the pressure is not going back to the brake master cylinder.One other problem could be a sticking piston due to corosion under the dust boot, i recomend replaceinfg the caliper assy. if the line checks ok.

Posted on Sep 03, 2010

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Replace the brake hose they get what is called a fissure inside hose and it will act like a check valve you hit brake pedal and when you let off brake pedal the fissure inside hose will hold pressure on caliper i see it all the time next time it locks up open the bleeder screw on caliper and the wheel will free up because you release the pressure that can,t go thru hose

Posted on Sep 03, 2010

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Hard Brake Pedal with ABS and Brake Light on


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actually you may not need to replace any parts. from what you are explaining on the vehicle you have a air lock in your brake lines. try and bleed the brakes again starting from the rear passenger than the drivers passenger than the passengers front and last the drivers front. than disconnect the negative battery cable for about 5 min to reset the lights and see what happens. please let me know if you need more assistance with this problem.
please do not forget to rate and comment about your expereince with fixya today.

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