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1991 GMC Sonoma Question: What is the possible cause for the front brake rotors to get hot & start to stick?

 

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wbelisle, 2.5L 4 Cylinder, Kennett, MO, August 21, 2010, 14:31
 Enthusiast

This just started up on me. I inspected the right rotor and brake pads on the pass. side and the rotor was wore bad on the back side. I put another rotor and brake pads on and I tested it afterwards and the fronts wheels start getting hot and start seizing, after driving around a few blocks. The brake fluid is level and full. If more info is needed let me know what is needed and I'll put that info here?!

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    patrick mannion from Greg Solow's Engine Room, August 21, 2010, 18:35
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     Master

    The rotors wont stick but the brake calipers may drag if they are starting to seize. calipers get damaged if the brake fluid is not flushed periodically or if the caliper piston rubber boots get ripped or if the caliper guide pins are not lubricated and start to bind. Brakes can also drag if the brake master cylinder does not return fluid to the brake fluid reservoir.

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    wbelisle, August 22, 2010, 14:46
     Enthusiast

    Hey Pat,
    I tried to push the caliper piston in, while putting on the the rotor...it wouldn't budge... figured it was because of the pressure of the brake fluid on it... shouldn't that retreat when pushed in? I also was told the the "block" that the fluid goes to the separate wheels might clog..what do you think? I hate just 'throwing parts' at this! It can get expensive doing that.....

    UPDATE ON 8/24/2010
    The caliper piston was fine, Found out it was a break line that had got clogged up.... wouldn't return the fluid to the Master Cylinder... replaced the line and doing well... I try to update these as I get them repaired so future readers might get an idea of what to look for in such matters.

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  • Answer #2

    Visitor, November 13, 2010, 15:09

    sounds like your brake calipers are freezing up replace them,

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    wbelisle, November 13, 2010, 21:05
     Enthusiast

    look at update on 8/24, that fixed it thanks for lookin anyway!

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