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Old 04-28-2012, 10:36 PM   #1
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Rear brakes with a mind of their own....

So I live in upstate ny and my brakes are acting really weird. Theirs a lot of extreme temp change up here right now. It could go from 65 in the day down to the teens at night. I've noticed while cruisin in my tj that at night when it's real cold out the rear brakes are a lot tighter. When I say a lot I mean a lot. They will lock up if I hit the brakes a lil harder than usual when I'm downshifting or if I get on some of the sand left on the road from the winter. But during the day when it's warm they work perfect. No problems or anything tight to speak of. I figured I should get some oil on the components. But anyone else ever have this problem?

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Old 04-30-2012, 11:12 AM   #2
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So nobody else has had this happen??

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Old 04-30-2012, 11:21 AM   #3
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Have you taken off your drums and looked at your brakes yet?
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Old 04-30-2012, 11:23 AM   #4
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your self adjuster may have tightened them up too much, they sound like they are adjusted too tight

loosen them (both sides) a few clicks and see if you still have the problem
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Old 04-30-2012, 11:26 AM   #5
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When it's cold out mine sometimes lock up under light braking when I'm getting ready to pull out of my driveway but act fine once on the road. But I know my rear brakes are overdue for an overhaul and I suspect maybe you have a shoe issue and you should look at them before too much longer.
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Old 04-30-2012, 10:29 PM   #6
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I haven't pulled the drum off yet. Was just hoping someone could pinpoint the problem befor I dug into it. Figured it was the shoes tho. There due for a change anyways
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Old 05-01-2012, 12:01 AM   #7
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Happened on my old truck once, shoes may be a little worn and have been adjusted out combined with the cold temp contracting all the metal parts and making them stick and lock up.
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Old 05-01-2012, 09:44 AM   #8
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Quote:
Originally Posted by SledNeck600 View Post
I haven't pulled the drum off yet. Was just hoping someone could pinpoint the problem befor I dug into it. Figured it was the shoes tho. There due for a change anyways
You might want to consider replacing the wheel cylinders when you replace the brake shoes. Corrosion caused by water, brake dust, mud, and/or road salt, can cause the wheel cylinders to become sticky and not function smoothly. This can cause the early morning lock-up and also the lock-up with harder than normal braking. They don't cost that much, maybe 10 bucks each
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Old 05-01-2012, 10:01 AM   #9
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I have this problem, but it really manifests itself after a humidity change first thing in the morning. I have pulled the drums and they are in spec and the brake pads are good too. They are adjusted properly, but on the tight side. It goes away after 2-3 stops always.

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