BigPete
NAXJA Forum User
- Location
- Spanaway, WA
copying this from another thread i started.
Its a 1993 2wd XJ, 4.0L, AX15, and 8.25 rear. i started this thread on Jeepforum.com yesterday with little luck. just going to copy/paste here.
post #1:
I was driving to get the emissions check so i can change the title and get new tabs. On the way there it seemed like the brake pedal was getting stiffer and it slowed down faster than it should in neutral. by the time i leave the testing place and hit the freeway in 4th its having a hard time speeding up. when i let of the gas in neutral again it slow alot faster. This continues to get worse to a point where i drove the 2-3 miles back to work in second gear at 25mph fighting the brakes the whole way. if i tryed to go faster still in 2nd i would start smoking the clutch. Does this sound like somthing broke in the drum it self or the matser cylinder/boster part of the braking system?
Post #2:
well this all happened while i tryed to do the title/emissions crap over lunch break, so i did as much as i could with out getting really dirty. i wasn't able to jack it up to see what wheel didn't spin, but it like more noise was coming from the back end. I think i have encountered nearly all the problems that can happen to a XJ, but this is new. If the brake pedal went to the floor i'd know what to do, but with it getting rock hard and the brakes locking up like that is just weird with out a large bang of some sort.
Post #3
Well i took the rear wheels off and the drums came off easy. the only thing out of place was the adjuster plate on the driver side brake wasn't touching the star wheel and had very little tension on it to hold it up. the wheel cyliners seemed like the where getting stuck possably. Like i said before this happened at lunch and after work i took it around the block and it drove fine. I even tryed to get it to lock up again by slaming the brakes several times. So i just adjusted the rear brakes to a really lose spot and put it back together and drove home and to work today. it still baffles me as to what happened or if it'll happen again. this weekend i'm going to rebuild the rear brakes with new wheel cylinders, hardware, and shoes and see if that'll cure it.
Post #4
when i had the drums off i had my sister press the brakes and the pistons moved in and out on both sides of the wheel cylinder. it didn't look like it was moving perfect but they moved out when pressed and back in when let off.
Would the brake pedal get rock hard if it was a cloged? i would think that the single brake would just be locked instead of having the brake pedal stay hard. hmmm
I am almost leaning toward the MC being jacked.
Its a 1993 2wd XJ, 4.0L, AX15, and 8.25 rear. i started this thread on Jeepforum.com yesterday with little luck. just going to copy/paste here.
post #1:
I was driving to get the emissions check so i can change the title and get new tabs. On the way there it seemed like the brake pedal was getting stiffer and it slowed down faster than it should in neutral. by the time i leave the testing place and hit the freeway in 4th its having a hard time speeding up. when i let of the gas in neutral again it slow alot faster. This continues to get worse to a point where i drove the 2-3 miles back to work in second gear at 25mph fighting the brakes the whole way. if i tryed to go faster still in 2nd i would start smoking the clutch. Does this sound like somthing broke in the drum it self or the matser cylinder/boster part of the braking system?
Post #2:
well this all happened while i tryed to do the title/emissions crap over lunch break, so i did as much as i could with out getting really dirty. i wasn't able to jack it up to see what wheel didn't spin, but it like more noise was coming from the back end. I think i have encountered nearly all the problems that can happen to a XJ, but this is new. If the brake pedal went to the floor i'd know what to do, but with it getting rock hard and the brakes locking up like that is just weird with out a large bang of some sort.
Post #3
Well i took the rear wheels off and the drums came off easy. the only thing out of place was the adjuster plate on the driver side brake wasn't touching the star wheel and had very little tension on it to hold it up. the wheel cyliners seemed like the where getting stuck possably. Like i said before this happened at lunch and after work i took it around the block and it drove fine. I even tryed to get it to lock up again by slaming the brakes several times. So i just adjusted the rear brakes to a really lose spot and put it back together and drove home and to work today. it still baffles me as to what happened or if it'll happen again. this weekend i'm going to rebuild the rear brakes with new wheel cylinders, hardware, and shoes and see if that'll cure it.
Post #4
when i had the drums off i had my sister press the brakes and the pistons moved in and out on both sides of the wheel cylinder. it didn't look like it was moving perfect but they moved out when pressed and back in when let off.
Would the brake pedal get rock hard if it was a cloged? i would think that the single brake would just be locked instead of having the brake pedal stay hard. hmmm
I am almost leaning toward the MC being jacked.