Brake help

[chris93]

I have 93 with a 351. the passenger front brake pads are wearing much faster than the driver side.. almost 3 or 4 times as fast, particularly on the outside pad. A few months ago, I removed the slides and cleaned and regreased them. Not sure why it is wearing so badly anyone have any suggestions. thanks

 

[Bronc76]

Is it normal braking when brakes are applied or does it pull to one side?

 

[chris93]

it does slow down fairly straight. However under hard braking you can definitely notice pulling towards the passenger side. If it sheds any light on the situation I recently added a caster/camber kit to bring the front end back to normal specs and had it aligned. I immediately noticed it would pull to the right then too. The guy at the shop where the work was done said it pulled due to normal crowning in the road. but guess what it still pulls to the right even on freshly paved road when I'm in the left lane!!! arrrhh.

 

[Bronc76]

Do you think you have a caliper problem? I think sometimes the caliper piston will stick or seize up when brakes are applied causing the pull. I'm not sure if that is causing your wear problem. Might want to get more opinions.

 

[andre]

also check brake flex hose some time cotaminated brake fluid will do that too

one way to check it out

is to jack the two fr wheel and get someone to push the brake then release see if one is not harder to turn

if yes or sticking open bleeder if still hard need caliper if let got when you opend bleeder need hose

also brake fluid flush may take care of it

hope this help

 

[AdamDude04]

I just recently had a brake flush, pads installed by me/buddy, then brake shop do the brake flush/pad/rotor turn service and I noticed I have a hard pull to the left under high speeds. I was doing anywhere from 65-85mph and truck will pull hard to the left under decent/hard braking. Not sure if it's because of the "groves" in the road or actual brake probelm on my truck.

I'll report back..however I never had this issue with the brake prior to my brake pad replacement last year. I honestly think my issue (may be your issue) may be linked to a bad brake system issue, such as a calliper (likely issue) or simular issue.

Please update with any "fixes" on what what was done.

 

[andre]

some info for you two

lot's of time when ppl do there brake over look calyper dust boot alway clean insite and look for rusty piston

and grease piston w brake grease

then push piston back in caliper and problem start because dirty or rusty piston may stck or some case leak brake fluid

 

[chris93]

thanks for the input guys. The calipers were replaced about 20K ago, new pads then too obviously and the rotors were turned. When installing new pads yesterday, which really only needed to be done on one side... I did flush the brake system, new fluid all the way through. Haven't left the house yet to see if it will still pull. The pistons seem to move freely as well when installing the new pads.

 

[bobstrat]

how do the brake lines look? particularly on the drivers side?

 

[Johnny Reb]

I have 93 with a 351. the passenger front brake pads are wearing much faster than the driver side.. almost 3 or 4 times as fast, particularly on the outside pad. A few months ago, I removed the slides and cleaned and regreased them. Not sure why it is wearing so badly anyone have any suggestions. thanks

Have you checked the calipers for ANY FOREIGN MATTER-LIKE DIRT,GRAVEL? How about checking the CALIPER?--Maybe it is out of shape? How about the pad it self? Is it the same brand?--Maybe (if it is) the manufacture has a tool out of shape? Does the vehicle pull to one side as you drive? If so.Check the bearing on that side ,rotor for out of round (if so ,get it turned if possible)if not replace. I,d check first for foreign matter in and around the caliper . Hope this solves your problem. You might also want to check the rubber brake hose going into that caliper. They break down(collapse) on the inside.

 

[Seabronc]

When was the last time the you replaced the hoses from the caliper to the solid brake line? Real old ones will deteriorate on the inside causing it to create as flap that acts like a check valve keeping the brake applied even when you don't have your foot on the peddle. If they have never been replaced, I'd do it.

Good luck,

>-

 

[chris93]

okay, well jacked up the front end and applied the brakes, both sides were impossible to rotate, so seems like pressure is getting to both sides. lines seemed good but probably original. I would think though that if I was unable to turn the tires then the lines were probably free of debris.

 

[Johnny Reb]

okay, well jacked up the front end and applied the brakes, both sides were impossible to rotate, so seems like pressure is getting to both sides. lines seemed good but probably original. I would think though that if I was unable to turn the tires then the lines were probably free of debris.

If you have had the brakes hoses on the truck(bronco) for along time. They can be bad and cause your brakes to act up bad. They can (brakes) can go from one wheel to another acting up.They did on my old Ford. If the hoses on your 93 are original--you are talking 17 years old. I would replace all of them--their way past due and could fail --like in bust --anytime--good luck

 

[Bronc76]

Have you checked your suspension components for looseness. I may not be right but it could be another reason why the vehicle is pulling to one side, may not have anything to do with brakes. (You could have two problems)

 

[chris93]

havent checked those, tie rod ends are pretty new. anything specific you might have in mind though?

 

[andre]

but when you let got of brake are there free rigth away ??

or slow to release need two person to do it

also may have two problem suspension check radius arm bushing on passager side verry close to catilytic converter

commond tire pressure and make sure you got same size tire

may sound stupide but happen

PS just posted some of my truck in gallery

 

[Bronc76]

Like Andre mentioned, the radius arms, also tie rods,sway bars (if equipped). Just to be sure there's nothing else wrong.

 

[AdamDude04]

some info for you two

lot's of time when ppl do there brake over look calyper dust boot alway clean insite and look for rusty piston

and grease piston w brake grease

then push piston back in caliper and problem start because dirty or rusty piston may stck or some case leak brake fluid

I put that in my pool of ideas. My calipers are probably orig. (20yrs old).. they are rusted over bad..they look like the surface of the moon with dimples and all lol. They still work..but I'm sure not the condition they should be? Truck stops pretty good though. Getting new calipers this comming summer with a brake upgrade.

How about expanding hoses? An older hose may expand more than the other side..thus causing one side to brake more per standarnd than the other..

 

[chris93]

oddly enough, drove to work today and stops dead on straight even in panic. I think it may be the tire I just rotated from the right front to the left rear. It doesnt pull anymore either. The tires match and pressure is always the same... must just be another bronco gremlin.