Brakes are locking up in the rear end....WHY???? HELP!!!

T4Rex.

New member
So basically to make a long story short...i have just recently within the past 2 months made some progress with my 4Runner...all of my upgrades are listed in my signature...no use in retyping all that....

ANYWAYS!!!!!!! i decided that it was about that time to replace my UBJs. So i rented a press and started work....3 days later after alot of cuss words and swearing off ever working on my 4Runner again (well atleast for a week or two) i had completely installed my UBJs....( i had to remove my brake caliper, rotor and my ABS sensor, i didnt mess up the sensor in removing them...)

NOW my PROBLEM....after i bleed my brakes i took my 4runner for a test drive to make sure nothing was wrong and i noticed as i stopped my ABS was kickin on (like if youre sliding, popping noises) when my truck was coming to a complete stop with steady pressure being applied to the brakes. At first i thought it may have been my caliper because it was pulling to the LEFT...so yesterday i called and had a replacement put on order, went and picked it up and installed it today....same issue ABS makes noises, however this time i have no pull to left or right...4runner will not go anywhere and when you give it gas it feels like the rear brakes are locking up....

I had issues with my brakes going on 2 weeks now...i replaced my Master Cylinder a few days before i started on my UBJs...after replacing my mc my brakes worked perfect!!! Now...ever since i replaced those ball joints and had to remove my brakes it has been a nightMARE!!!! today was my birthday...i wanted to go wheelin, did NOT want to sit in my garage all day with a dumb look on my face checking over crap i have checked 10xs!!!! WHAT IS GOING ON???? i am trying to move to COLORADO after i get these last few maintaince things taking care of...now i am thinking about putting my 4runner on a trailor behind the uhaul!!!! ANY ADVICE would be greatly appreciated!!!!!
 
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I hear rear brakes locking up and I think two things to check first:

1. Bellcranks seized so e-brake stays on.

2. Axle seals are leaking and swelling shoes causing lockup.

There are others, but I'd start there. Pull your ABS fuse and shut it down. I'll bet you still have a problem. If it cures it, then concentrate on ABS issues.
 
Another thing to consider is a leak into the drums. If gear oil leaked into the drums and soaked the shoes, then you cleaned it all, it would actually cause the shoes to completely lock to the drum and not the opposite (which is not intuitive at all). Have you thoroughly cleaned the drums and shoes? It only takes a few minutes - I'd try that out as well. Soak them real good with brake cleaner, then sand them down a bit. Also make sure your e-brake isn't locking up and is self-adjusting properly.
 
well i finally figured out where my issue was...i changed my back brakes mc, new springs. Then i had to replace both rubber brake lines in the front because they had collapsed on the inside. SoOOOo...that fixed my brake issue of everything locking up however was still having issues with my ABS system when slowing down so i removed both sensors, zip tied them to the control arm and found that i could stop with out any noises coming from my ABS and did NOT turn on my light inside. i then plugged back in the passenger side ABS sensor and still no issues, (no ABS noise or light)
Then i plugged up my drivers side....:mad:my ABS starts making noises again.....
SOOO now i have the speed sensor unplugged under the hood and taped up so that no dirt or anything get in.....and just waiting for monday so that i can go get a new speed sensor for my drivers side....
I really have been :boxer: with this damn thing way too LONG!! I have learned quite a few lessons on this though....i can NOT TRUST my neighbor,
# 1 :rockthrow:...he's a dumb***!!!!
# 2 my patience is running really slim....
# 3 ITS TIME TO GO WHEELIN!
 

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