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Old 12-13-2009, 09:19 PM   #1
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rear brake problems

Hi, I have a 93 wrangler 2.5l 5spd. My rear brakes are not working at all. I removed the drums and neither one of them move at all. They don't move when the parking brake is applied either. I blead the rear brakes and there is fluid coming from the lines but it didn't help the problem. Is it possible that both wheel cylinders are bad? There was alot of mud and crap in the brakes and i cleaned everything up good and spayed everything with wd40 hopeing it would loosen things up. Thanks in advance for any help.

Jason

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93 yj wrangler, 2.5, 5spd, 10" stretch, spring over, 38" tsls, mt classics, dana 44 front and rear, locked, 5.13 gears, rear disk brakes, griffin aluminum radiator, custom aluminum fuel cell
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Old 12-13-2009, 10:09 PM   #2
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Cleaning all the junk out is a good idea but be careful with the wd if you get it on the shoe surface it will ruin them.
Pulling the brakes apart and cleaning and lubing the pivot points would be better.
If the wheel cylinders are not leaking they should be fine unless the pistons are locked up and again pulling them apart and cleaning them could be a good idea.
Applying the parking brake and nothing moving is not good. Did the parking brake pedal move ?

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Old 12-13-2009, 10:26 PM   #3
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I only sprayed wd on the moving parts not on the shoes. When i apply the parking brake the pedal moves and there seems to be resistance but nothing moves at the brakes.
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93 yj wrangler, 2.5, 5spd, 10" stretch, spring over, 38" tsls, mt classics, dana 44 front and rear, locked, 5.13 gears, rear disk brakes, griffin aluminum radiator, custom aluminum fuel cell
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Old 12-13-2009, 11:50 PM   #4
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have you checked the parking brake cable for full travel at the rear brakes?
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Old 12-14-2009, 12:20 AM   #5
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Yeah but i dont think a problem with the parking brake would keep the regular brakes from working.
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93 yj wrangler, 2.5, 5spd, 10" stretch, spring over, 38" tsls, mt classics, dana 44 front and rear, locked, 5.13 gears, rear disk brakes, griffin aluminum radiator, custom aluminum fuel cell
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Old 12-14-2009, 12:27 PM   #6
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Sounds like your calipers may be shot. Do they move at all? If they dont then that`s probably why your rear brakes don`t work, if you`re not sure, they are only about $5.00
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Old 12-16-2009, 11:19 PM   #7
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It was the wheel cylinders. The previous owner obviously never cleaned the brakes so they ended up rusting. I replaced them tonight and the brakes work great now.

Jason

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93 yj wrangler, 2.5, 5spd, 10" stretch, spring over, 38" tsls, mt classics, dana 44 front and rear, locked, 5.13 gears, rear disk brakes, griffin aluminum radiator, custom aluminum fuel cell
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