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Old 11-01-2010, 05:27 PM   #1
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Brakes won't hold when going backward on hill?

Was out playing in the woods Sunday. Was climbing a pretty good hill and had to go between 2 small trees along the way up and slid into one of them and hit it with the front tire and stopped. The problem is that when I hit the brakes, It would not hold me and I rolled back down the hill with only 1/2 of my brakes. Had this problem earlier in the month and replaced the booster that was bad. Thought that I had problem fixed, because I could tell a big difference on the braking. Now I'm thinking maybe my front calipers might be sticking and not grabing the inside if the disk properly.(even had a tire shop check my brakes and they said everything is fine) Has anyone had this problem. Have a 2005 TJ Rocky Mnt Ed. with 4.0 L and 6 speed, PB and disk on front and drums on back. All brake were replaced appox. 7,000 miles ago. Also running 32" tires, but had 30" from factory? Help me out guys.

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Old 11-01-2010, 05:40 PM   #2
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Your rear drums are out of adjustment. Either they were not adjusted properly when the brakes were done, or the adjuster is not working. When going backwards downhill the fronts have very little weight on them so they do very little braking. The weight transfer is to the rear axle, thus the rears do the majority of the braking.

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Old 11-01-2010, 05:48 PM   #3
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Make sense, will check that out. Damn should of thought of that myself. Thanks alot.
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Old 11-01-2010, 07:01 PM   #4
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Drums just don't work very well in reverse because they wear going forward more.
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Old 11-12-2010, 07:21 PM   #5
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i had this same thing happen to me. i got a new proportioning valve but haven't been able to test it out. had my jeep on a lift and got the tires spinning, well if you slammed the pedal down the rear tires would just keep spinning but if you gently pushed the pedal in they would stop. hopefully this valve takes care of it.
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Old 11-12-2010, 08:18 PM   #6
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Try pulling up on the ebrake a little. Just pull it up till most of the slack is gone.
Then back up hard and try it. If it works much better now it's just out of adjustment.

Most folks don't adjust them right, they leave them waaay too loose.
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Old 11-12-2010, 08:25 PM   #7
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Quote:
Originally Posted by jwb1637 View Post
Was out playing in the woods Sunday. Was climbing a pretty good hill and had to go between 2 small trees along the way up and slid into one of them and hit it with the front tire and stopped. The problem is that when I hit the brakes, It would not hold me and I rolled back down the hill with only 1/2 of my brakes. Had this problem earlier in the month and replaced the booster that was bad. Thought that I had problem fixed, because I could tell a big difference on the braking. Now I'm thinking maybe my front calipers might be sticking and not grabing the inside if the disk properly.(even had a tire shop check my brakes and they said everything is fine) Has anyone had this problem. Have a 2005 TJ Rocky Mnt Ed. with 4.0 L and 6 speed, PB and disk on front and drums on back. All brake were replaced appox. 7,000 miles ago. Also running 32" tires, but had 30" from factory? Help me out guys.
Sorry I have to mention this but I can't help myself, you said you had a tire shop check your brakes, what part of tire shop includes anything about brakes? They repair and replace tires, a monkey can do that, hence the reason they don't have to be licensed to do it. A brake shop mechanic is a licensed technician, don't ever trust a tire shop to do anything but your tires.
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Old 11-13-2010, 09:24 AM   #8
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Were the fronts locked up as you went back down?

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