Caliper sticking

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Jun 20, 2013 | 03:36 PM

camhudson

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Heel & Toe

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Caliper sticking

I have a 1989 c4 coupe. The left front caliper won't release (is sticking) when I release the break pedal ( I discovered this problem when I noticed the wheel was hot). I replaced the caliper with a new one but it didn't solve the problem. Does anyone have any idea what is causing the problem?

Thanks,
Cam

Jun 20, 2013 | 03:40 PM

94z07fx3

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Sounds like the rubber line from the hard line at the chassis to the caliper has failed internally and is blocking flow back to the master.

Jun 20, 2013 | 05:20 PM

leesvet

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yep.

the hose is acting like a check valve.

Jun 20, 2013 | 05:42 PM

camhudson

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Thanks for your answers. I was hoping that was my problem.

Jun 24, 2013 | 11:58 AM

camhudson

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I installed a new caliper and a new rubber hose (line) and my caliper is still not releasing (still sticking). What else could it be?
Thanks

Jun 24, 2013 | 12:22 PM

GKK

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From: Northern California

When you bled the lines, did brake fluid flow out easily?...

If not, contamination in the lines is blocking the fluid flow somewhere.

Also, check that the new caliper functions properly by disconnecting the brake hose and blowing compressed air into it.

Last edited by GKK; Jun 24, 2013 at 12:29 PM.

Jun 24, 2013 | 12:32 PM

davewhtt

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From: weems va

If the lines are going bad you will be getting rubber bits and parts in the system. Change the fluid. Was it a new caliper or rebuilt? Make sure you didnt kink/twist the new line.

Jun 24, 2013 | 05:26 PM

camhudson

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[QUOTE=davewhtt;1584234220]If the lines are going bad you will be getting rubber bits and parts in the system. Change the fluid. Was it a new caliper or rebuilt? Make sure you didnt kink/twist the new line.[/

It is a new (after market) caliper. I will change the fluid. Thanks for the help.