post #1 of Old 06-30-2011, 04:10 PM Thread Starter
Mahanoy
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2001 TJ Wrangler 
 
Join Date: Nov 2010
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2001 wrangler bake brakes problems/questions

Hello, i recently have realized that my back brakes were not working properly when i would hit the brakes the rear would keep spinning and the front would lock up and get hot after driving and the back would stay cool. I have sanded the drum and the linings and bleeded the brakes 3 times and it has gotten a lot better but im not impressed with the rear drum brakes. When i am backing down my stone driveway the jeep slides down the whole driveway. Also when i have it jacked up and the back wheels spinning i hit the brakes and the back wheels one sometimes stops while the other keeps going or they both stop but if you turn them by hand while they are stopped they will continue to spin. Also the brakes have been adjusted until there is a slight drag on the drum. Sorry for the long post but i am concerned about what could be the problem or if it is normal. PS is there a way to make more fluid go to the rear brakes by adjusting the proportioning valve or anything? THANKS, Mahanoy


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post #2 of Old 06-30-2011, 08:15 PM Thread Starter
Mahanoy
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Can anybody please help me

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post #3 of Old 07-01-2011, 07:51 AM
NIB-98TJ
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I am no brake expert, but the rear TJ drum brakes just kinda suck.

I think one of the reasons is the brake combo valve limits the pressure to the rear to prevent rear brake lock up in a panic stop. That is fine if you are going forward. But it sucks big time backing down a steep hill in 2wd when the front axle is unloaded and the front wheels lock up and the rear brakes don't do crap.

How much braking force can you get by just using your parking brake?

NIB

98 TJ, 4.0, 5 spd, 1" MM, 1" BL, RE 4.5" LA's, 36" TSL-SX's, D44/D44, ARB's, Atlas 4.2, etc
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post #4 of Old 07-01-2011, 07:56 AM
mrblaine
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Quote:
Originally Posted by Mahanoy View Post
Hello, i recently have realized that my back brakes were not working properly when i would hit the brakes the rear would keep spinning and the front would lock up and get hot after driving and the back would stay cool. I have sanded the drum and the linings and bleeded the brakes 3 times and it has gotten a lot better but im not impressed with the rear drum brakes. When i am backing down my stone driveway the jeep slides down the whole driveway. Also when i have it jacked up and the back wheels spinning i hit the brakes and the back wheels one sometimes stops while the other keeps going or they both stop but if you turn them by hand while they are stopped they will continue to spin. Also the brakes have been adjusted until there is a slight drag on the drum. Sorry for the long post but i am concerned about what could be the problem or if it is normal. PS is there a way to make more fluid go to the rear brakes by adjusting the proportioning valve or anything? THANKS, Mahanoy
Do a little test for me. The next time you back down the driveway, reach down and pop it into 4 hi and let us know what happens.

The reason I ask is our gravel drive is pretty steep right off the pavement and uphill to the flat parking area. My wife had a bit of a throttle control issue and was steadily moving all the gravel down to the street. When I showed her to pop it into 4 hi as soon as the front tires touched the gravel, no more tire spin moving gravel around.

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