Brake Pads and Rotors
Chevy Blazer S-10
Ford F-250

Why are the front brakes sticking on your 1992 Ford F250 after you have replaced brake rotors pads calipers brake hoses and master cylinder?

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2006-09-29 18:59:48
2006-09-29 18:59:48

have you tried the proportioning valve. sometimes dirt will get in there and clog the returns.

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It's rare....because usually the master cylinder will allow pressure to bleed off. Not the other way around. But if you have replaced the calipers, this is the next thing I would check. I suppose it could be sticking.

Air in system? Remove and bench bleed master cylinder Bleed lines and calipers

master cylinder is sticking

the pistons inside your calipers are sticking

old break hose collapsing and or pistions sticking in calipers.

Hi. If the brakes are sticking on it won't be the servo thats at fault it's sound more like the calipers need cleaning.

you probably wont be able to move? or you can take it around the block, then when you get back dump some water on the calipers.. if it sizzles then there is a good chance they are sticking :)

could be the master cylinder. or the calipers may be siezed

usually either the calipers have dirt in them and need to be replaced or the rubber lines leading to them have collapsed inside and need to be replaced.. really kills the gas mileage uh!! chevy has had problems with rear discs on these vehicles,70%of braking is on the front,30% on the rear. therefore the pistons get little use and stick. there are stainless sliders the calipers move on,you need to clean and lubricate them,this should stop the brakes from dragging. I have a 1999 Blazer and my rear brakes were grinding so I replaced the pads and rotors but had the same sticking problem. They dont offer a rebuild kit for my calipers so I had to replace the calipers also.

The brake proportioning valve may be sticking, but this is very uncommon. Did you lubricate the slider pins on the caliber or replace them if they are rusted or corroded? Check all contact points and clean them off throughly. Apply brake lube to all contact points.

There is brake hardware and lubrication that needs to be replaced. The brake hardware and lubrication that goes on the hardware allows for the brakes to easily release. Now you may want to check to see if your calipers are sticking, or even check to see if the wheel cylinders for your rear brakes are frozen. I am a Brakes Plus Employee.

If You Replaced the master cylinder Did you Bleed it as well? if not you need to bleed it first. then bleed the brakes start with the passenger side rear, then driver side rear, then passenger side front, then finally the driver side front.

Check the calipers. If the calipers pistons are extended to far - this could cause the brakes to lock up. The pistons cannot be retracted.

Could be a defective master cylinder--Ford had this problem a few years ago when the brake fluid got warm and expanded (Normal) the master cylinder would not allow the expanded fluid to return the the resevior--causing brakes to drag and eventually seize until fluid cooled and relaxed the calipers The car was driven too long with the brakes on. Was the parking brake engaged while driving? Bad calipers can cause sticking too. The metals on the brakes have become so hot that they have "welded" themselves together. Have a professional replace and repair the brakes.

If by scrub you mean drag or cease, then it is possible that the calipers need to be replaced.

It would be helpful to know: What vehicle you are working on. The condition of the rear brakes, and were they also bled. Does the brake fluid level stay full, if no then there may be a brake fluid leak.

Bleeder screw for clutch is at the slave cylinder, on the bell housing of the Transmission. The bleeder for the brakes is on the calipers, and on the backing plate of the rear drum brakes

It sounds like there is a problem with the proportioning valve. I highly advise you to seek professional help with this repair. This is a very dangerous situation and needs to be corrected ASAP.

If pads are bad you have to replace it, but it sounds like you have problems with calipers. Either you have to clean calipers or replace it. Check break fluid level. Check the breaking system, you might have some air in there.

Sticking brake calipers. This can be caused by moisture in the brake fluid which will cause the calipers to rust. Replace the calibers and replace all the brake fluid. It can also be caused by driving with your foot on the brake.

AnswerThat's typical overnight some moisture may collect on rotors (slight rust) as you drive pads wear if off. sounds like your calipers are sticking and either have to be changed or rebuilt.


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