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Old 03-15-2015, 09:13 PM
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Anyone have this happen when got brake job?

Okay, me and my step son (mostly my step son - great guy) changed front disk brake pads on my Tj today - at his house.
On my way home my Jeep started pulling a little to the right, pulled more, started having a burnt smell and wouldn't coast anymore - pulled to right.
Turns out that on my way home the front right caliper froze / locked up.

He came - disconnected it & tied it off so I could drive (slowly) back to his house. I bought a new caliper and he installed it.

Took it for a 4 mile test drive and it did fine.

THEN when I was almost home - the one on the drivers side did the same thing!

We are going to replace it tomorrow.

Has anyone else had anything like this happen to them?

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Old 03-15-2015, 09:17 PM   #2
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Same thing happened to me last month. I replaced both calipers and all is good.

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Old 03-15-2015, 09:29 PM   #3
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You might want to consider replacing your front brake hoses if they are original and have lots of miles on them. They normally start deteriorating after years of service from the inside and can plug the return of brake fluid that allows your calipers to release.
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Old 03-16-2015, 12:38 AM   #4
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Has anyone else had anything like this happen to them?
That happens a lot. It's a natural consequence of retracting a dirty, scored piston into a contaminated and/or corroded cylinder.
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Old 03-16-2015, 08:20 AM   #5
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Same thing happened to me. Drivers side caliper hung up first then the next day it was the passenger side. So now I have new brakes and calipers.
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Old 03-16-2015, 08:53 AM   #6
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Good idea to go ahead and replace hoses if still original. I replaced mine on my 2005 this weekend. While doing this it is a great time to flush out all of the old brake fluid. Very likely though that simply retracting the caliper which was necessary for pad replacement led to this. One other thing is to make sure sliding metal to metal locations are well lubricated
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Old 03-16-2015, 09:03 AM   #7
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all that was needed was a fluid flush before compressing the piston. might still get lucky. i'd say its worth the $5 in fluid over replacing the calipers
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Old 03-20-2015, 06:55 PM   #8
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Originally Posted by ArmyCop View Post
Okay, me and my step son (mostly my step son - great guy) changed front disk brake pads on my Tj today - at his house.
On my way home my Jeep started pulling a little to the right, pulled more, started having a burnt smell and wouldn't coast anymore - pulled to right.
Turns out that on my way home the front right caliper froze / locked up.

He came - disconnected it & tied it off so I could drive (slowly) back to his house. I bought a new caliper and he installed it.

Took it for a 4 mile test drive and it did fine.

THEN when I was almost home - the one on the drivers side did the same thing!

We are going to replace it tomorrow.

Has anyone else had anything like this happen to them?

YEP! you had your piston lock up. You can (and should) rebuild your caliper when doing front brakes, especially on high-mileage Jeeps. It's an easy thing to do, and only requires a cheap stone hone if you have rust issues. You do need to bleed the brakes when done. That's why most people don't do it (IMHO).
Should turn the rooters too, especially if you tore up the new pad.
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Old 03-20-2015, 08:53 PM   #9
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I've had something similar happen on two different Jeeps. A single spec of dirt can lock up the caliper. He needed to move the cylinder further to accommodate new pads. This was probably the dirt entry point. It happens. While replacing the brake hoses be sure to flush all old brake fluid for new. Do not run the reservoir empty. I use a turkey baster to nearly empty the master cylinder. Fill with new. Then do a full bleed with fresh fluid to every corner.

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