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Brakes are locked up!

Have changed both front calipers and the master cyl. but they remain locked up.

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  • 20 Answers

Are the back brakes fine? How do the front brakes look? Another thing to remember is that one of your wheel bearings may have seized up thus locking up your wheel.

Posted on Nov 24, 2014

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6ya6ya
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Posted on Jan 02, 2017

dxg031603
  • 9 Answers

SOURCE: 1986 gmc sierra 1500 front rt brake locks up

check brake lines they may have gotten pinched very commonok new c/k trucks when you crank the torsion bars up to far you may have hit something and pinched the brake line check those before messing with the master cylinder those are a real pain

Posted on Sep 21, 2008

askjhuber
  • 59 Answers

SOURCE: Where can I find a brake proportioning valve for my 97 S-10?

When people tell me they hate there ABS, alot of people who pull trailer do. I tell them just to pull the fuse this will stop them completely. Yeah theres a light ont he dash but that can alos be delt with by removing the bulb for it. But int he long run just pulling the fuse is quick and Free.

Posted on May 17, 2009

rsst
  • 175 Answers

SOURCE: front brakes stay locked up

You may want to replace your flexible feed lines to the calipers. Any little bit of **** in them will not let the brake fluid out of the caliper,

Posted on Jul 29, 2009

  • 7353 Answers

SOURCE: 95 olds cutlass supreme sl with 3.1 6 cyl. ABS and

you may have a ABS problem. I would drive it and attemp to skid the tires an dsee if the pump activates. sometimes this will unstick any valves inside the ABS unit. you may need to have a qualified repair shop check deeper. the ABS will have a code, and a scanner will be needed to check further.

Posted on Oct 19, 2009

  • 524 Answers

SOURCE: Spongy brakes, anti lock disabled and brakes won't

Yes master cylinder and maybe ABS sending unit. Also is there a sound of an air leak it may also be your brake booster

Posted on May 03, 2010

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If you changed the caliper and the brake pads are staying applied, check for a faulty hose. The hose can collapse internally and not allow fluid to flow back to the master cyl.
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A few items you could ckeck, adjustment of the pushrod from the pedal to the master [ if it's set to long, the pistons inside the master Cyl. wouldn't retact enough to let the fluid flow back into the master Cyl, properly causing the calipers to drag. this would become worse when the fluid and master heated up.], - The proportening valve may be faulty and blocking the fluid from returning to the master from the front brakes, - If the vehicle has Anti-lock brakes it could be in that system.
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you could have a brake hose that has a piece of rubber making a flapper valve that causes brakes to stay on.or the proportioning valve has gone bad on you. if the brakes were notmush before you changed the hydralic stuff then perhaps bleeding was done incorrectly. just open one bleeder at a time and let it drip a few minutes then go to the next. make sure mast. cyl. doesnt go dry

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take two lug nuts & screw them on to hold the rotor in place,,take pads back out of caliper,,pop the hood,,pop the cap off the brake master cyl, take a pair of big channel locks or c clamp,,& push the piston back into the caliper,,if it doesn't move,, you mite have to change it,,when done snap the master cyl cap back on ,,,hoped it helped,,

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always bleed front driver side first, front right,left back
right back.
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