1995 Jeep YJ , back breaks wont stop! - Jeep Wrangler Forum

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Old 12-21-2010, 09:37 PM
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Post 1995 Jeep YJ , back breaks wont stop!

So i have my yj that rear breaks wont stop,
while on a jack stand they will completely stop but will start going again, but when on the road they will not lock up or stop at all.
I have changed the wheel cylinders, master cylinders, the steel brake lines and the rear flex lines many times.
I have also bled the brake lines several times .

If anyone has any ideas on what it could be, or what i could try please let me know!
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Old 12-21-2010, 09:51 PM   #2
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Did you remember to adjust them?
At the bottom between the shoes is an adjustment screw. There should be a rubber plug directly behind it that you can pop out and adjust the shoes with the drum on. With the parking break off and no pressure on the pedal, adjust the shoes out until they just barely contact the inside of the drum.

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Old 12-21-2010, 10:12 PM
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Yes I did adjust them, I also put a ford proportioning valve and cylinder on it to, and still wouldn't work
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Old 12-23-2010, 09:43 PM   #4
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Which Ford proportioning valve? YJ without ABS has 2 steel lines for the front wheels and 1 for the rear coming out of the valve.
A proportioning valve from an Explorer with rear disc brakes will not work on a rear drum brake vehicle, I tried it, didn't work, long story!
Rob
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Old 10-18-2016, 03:31 AM   #5
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Please help!

I know this is 6 years later but this is the ONLY thread that I can find on my issue. I have the same thing happening and have replaced EVERYTHING: mc, proportioning valve, drums, shoes, springs etc and I still have no brakes. Can you help?
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Old 10-18-2016, 11:22 PM   #6
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When you spin the tire while the vehicle is off and on jack stands does it freely spin? It should have a little bit of drag when spun by hand. Are you sure all of the air is out if the system? Have you tried a gravity drain? Is the master cylinder free of air?
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Old 10-19-2016, 11:06 PM   #7
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The easy way to put this is: Everything works 100% fine from the pedal to the wheel cylinder is either new or tested good! Brake pressure is fine.

I am chasing down the possibility of the shoes catching on the backing plate.

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