Question about 1999 Pontiac Sunfire

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My rear brakes are snatching and making a loud grinding sound when i try to stop. I have replaced the drums rotors brakes and brake lines but still have the problem of my brakes adjusting out on their own. i'm not sure what the problems is i need help?

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  • Mike Butler
    Mike Butler May 11, 2010

    I hate to ask this but, are you 100% sure you put it all back together correctly? primary & secondary shoes in proper places, self adjuster etc?

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I had a problem with that. It may be moisture in the air causing the brakes to catch. What I did was just ride them for a while and they should go back to normal.

Posted on Jun 08, 2009

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Hi,were the brakes repaired professionally?Or did you do it yourself? I think maybe the auto adjusters have been installed incorrectly or are seized.

Posted on May 18, 2009

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Most people do not remove the rear rotors and inspect the Emergency Brake shoes. These often peel off the metal backing on the shoe and jam inside the interior Drum of the rotor. Some people will hear a rusty grinding noise after pulling away from a stop.

These brakes have the old "star-wheel" adjusters and may need to be adjusted more loosely to remove the rotor. Its a bad system in my opinion; the drum always rusts and corrodes and the Ebrake shoes are banana peel thin. With corrosion, the drum acts like a grinder and chews up the brake shoes. Some other configurations use a mechanical link on the caliper to make the service brakes act in an Emergency. It will override a hydraulic failure, but you still need good pads on the caliper.

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Yes.
Please find someone who will remove your wheels and check your brake drums or rotors, whichever you have, and do this out of kindness.
This person need to show you the rotors inside and out, and if you have brake drums on the rear, remove those and show you the insides.
You are looking for metal-to-metal area that will make a grinding sound.
It will be easily seen by you. especially when you compare that with a normal smooth wear area.
If you find a rotor or drum NOT smooth but all rough, that is the wheeel you need to have fixed.
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Some brake shoes and rotors are noisy.
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