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Old 05-21-2012, 05:08 PM   #1
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Brake issues

Brakes seem to be locking up but only when the car is running I can jack it up and spin the front wheels hit the pedal a few times and still turn the wheel by hand but if I turn the car on pump the pedal it is locked up but I can crack the bleeder on the master cylinder and it is free again already replaced the front calipers and hoses and I'm about to replace the master cylinder I need to know it it could be caused by the and or the hydrapump going to the powerstering
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Old 05-21-2012, 05:55 PM   #2
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I had the same problem and it was my calipers one of the 2 pistons was out farther then the other one double check that and also make sure your not filling up the master cylinder with 2 much brake fluid
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Old 05-21-2012, 05:58 PM   #3
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Well I replaced the front calipers and pads and also the rear pads cause I thought the problem was the drivers side rear cause it was down to bear metal on just that one and I've bled the fluid down so it's not over full
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Old 05-21-2012, 06:02 PM   #4
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I bought new calipers an I had that problem with them lol so double check
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Old 05-21-2012, 07:23 PM   #5
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Re: Brake issues

If replacing the master cylinder doesn't work try the power brake booster, as it may have gone as well. I also don't think it is in your calipers. Are the calipers new? As in never been used?
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Old 05-21-2012, 07:25 PM   #6
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Yes new calipers.
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Old 05-25-2012, 10:21 AM   #7
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Quote:
Originally Posted by Medcyn
Yes new calipers.
Okay. Try the master Cylinder, and the Power Brake booster if that doesn't work.
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Old 05-25-2012, 10:22 PM   #8
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I think it's the abs. Brakes only lock up when the car is started.
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Old 05-25-2012, 10:25 PM   #9
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My friend was having this same problem. He removed his calipers to paint them and changed pads and rotors and when he put the 2 rear ones back they were stuck and would heat up bad. Ended up needing to change the rotors and pads again cuz they warped and he changed both calipers and that seemed to fix the problem.
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