Pulls when braking.
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Cargo Master
Joined: Nov 2003
Posts: 2,000
Likes: 39
From: North Dakota
Pulls when braking.
My 88 Bronco pulls to the left when braking, but not always. I replaced the calipers last week and it still did not stop it. I also just got the front end aligned. My rotors are fairly new and so is my master cylinder ad ABS valve. Could the proportioning valve cause the problem? Any other ideas?
Posting Guru
Joined: Aug 2005
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My 78 F150 did that and it was the rear brake on one side. The wheel cylinder was only pushing one shoe out. Had to replace wheel cylinder. I found this out on a gravel road when applying the brakes hard enough to lock up the rears and only one wheel on the rear locked up pulling me to one side.
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Cargo Master
Joined: Nov 2003
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From: North Dakota
Well from the exterior my rubber brake lines look fine. They are not cracked at all. When I replaced the two front calipers all I bleed was the first two. Maybe I need to bleed the backs and then move to the front? I am a little boggled about the whole thing.
Postmaster
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From: Central PA
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Cargo Master
Joined: Nov 2003
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From: North Dakota
All of that was replaced, cleaned and lubed when I replaced my calipers last week. The pins are even brand new.
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Cargo Master
Joined: Nov 2003
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From: North Dakota
I just got the axle pivot bushings replaced along with a front end alignment and the radius arm bushings look fine. I bought some new rubber brake hoses so when I get them on I will see what happens.
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Cargo Master
Joined: Nov 2003
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From: North Dakota
Well, I put on new rubber brake lines and new radius arm bushings and it is still pulling. About 97% of the time it will pull to the left but every once in a while it will get sneaky and pull to the right. I am still completly lost about this. It can be a little scary braking in the snow when it pulls!
Posting Guru
Joined: May 2003
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From: Juneau, ALASKA
My 96 Bronco did this never found the problem but after replacing the rear drums and everything else it still did it, replaced front breaks, rotors and calipers and it still did it then one day it just stopped yeah the guys at the ford garage where no help took it in thinking something to do with ABS and not bleeding it right but still did it pulled to the right now it is fine so not sure what it was.
Elder User
Joined: Jan 2005
Posts: 656
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From: Houston
I know it can be a pain, but my 89 did the same thing until I did a complete brake overhal at the same time. If you change pads you should have your rotors turned, perferably replaced. I would start from scratch. you have new calapers, buy some new pads and fix your rotors at the same time.
Posting Guru
Joined: Nov 2004
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From: sunny fla sometimes windy
You need to pull off all the lines at the calipers/wheel cylinders then at the prop valve
master cylinder and blast the lines out with about 90-100 psi. I would wrap a clean
white rag around the hose end so it will catch the fluid and any debris, If you find
small rust specks which is what it most likely is the steel lines are probably rusted
inside hopefully the air gets it out maybe a few cycles of brake cleaner blast/ air blast
cleaner/ blast then air blast until dry then a bit of brake fluid and blast it through.
Brake fluid should be swapped out every year though nobody does it and if it gets done
they only bleed the contaminated fluid from the resivoir into the lines, The best way
to ensure fresh fluid is to use a mity vac hand pump and suction the old fluid from the
res and fill it with fresh fluid then bleed the brakes until you get the fresh fluid to the
wheels. I use the mity vac for the bleeding as well since it pulls the fluid out at a fast
velocity!!
master cylinder and blast the lines out with about 90-100 psi. I would wrap a clean
white rag around the hose end so it will catch the fluid and any debris, If you find
small rust specks which is what it most likely is the steel lines are probably rusted
inside hopefully the air gets it out maybe a few cycles of brake cleaner blast/ air blast
cleaner/ blast then air blast until dry then a bit of brake fluid and blast it through.
Brake fluid should be swapped out every year though nobody does it and if it gets done
they only bleed the contaminated fluid from the resivoir into the lines, The best way
to ensure fresh fluid is to use a mity vac hand pump and suction the old fluid from the
res and fill it with fresh fluid then bleed the brakes until you get the fresh fluid to the
wheels. I use the mity vac for the bleeding as well since it pulls the fluid out at a fast
velocity!!