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Rear brake calipers locked up on rotors after replacing pads

Rear brake calipers locked up on rotors after replacing pads.

Rear brake calipers locked up on rotors after replacing pads

Postby 805silverado03 [OP] » Jun 29 2012, 11:16pm

I just replaced all of the brake pads on my 2003 Silverado extended cab 5.3L V8 4WD, and afterward I noticed that I could smell the right rear brakes cooking. Upon further inspection I found that the calipers are not releasing the rotor, the problem is present on both sides of the rear brakes, but more prevalent on the passenger side. When the caliper is squeezed using a c-clamp, and the bleed screw is opened I am able to rotate the rotor/wheel hub w/o any problem so it is not a wheel bearing. This also indicates to me that the calipers are the problem, so I guess my question is can the calipers be rebuilt, and or is there something in the system that would prevent the calipers from letting go of the rotors?
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Rear brake calipers locked up on rotors after replacing pads

Postby Machster69 » Jun 29 2012, 11:19pm

Happened to me, i just replaced the calipers assuming i damaged them when c clamping them somehow?

There was a core and i bought rebuilt ones... But if your keeping the truck you might wanna get new ones instead of rebuilts...
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Re: Rear brake calipers locked up on rotors after replacing

Postby Jastra » Jun 29 2012, 11:56pm

This has happened to Me 3 times when I didn't replace the calipers. The piston in the caliper seizes up from being pushed back in. From now on I always just replace the calipers to.
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Rear brake calipers locked up on rotors after replacing pads

Postby Machster69 » Jun 29 2012, 11:59pm

When i pulled the caliper off the piston fell out lol, guess the heat got it?
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Re: Rear brake calipers locked up on rotors after replacing

Postby ASTE25 » Jun 30 2012, 12:16am

In addition to the caliper check the rear brake hoses. A brake hose that is deteriorating on the inside can cause a caliper to not release too.
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Re: Rear brake calipers locked up on rotors after replacing

Postby 805silverado03 [OP] » Jun 30 2012, 12:26am

Okay, so I took off the hose on the passenger rear caliper and drained it into a can and there was a little residue, so I blew through the hose with compressed air and there seemed to be adequate flow, but since I too think the caliper is shot I think I'll change the hoses too. Thanks guys for your quick responses!
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Re: Rear brake calipers locked up on rotors after replacing

Postby ASTE25 » Jun 30 2012, 12:28am

Yea, they are cheap enough you might as well change them anyhow.
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