Question about 2000 GMC Safari

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I have installed new brake lines on the a 2000 GMC Safari. I am unable to power bleed front drivers side. I may have mixed up the lines. There are 5 lines on the anti lock under the front seat 2 on the bottom are coming from the master cylinder 3 on top are far passenger is drivers front middle is passenger front and drivers side is rear axle.

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  • doncart_2000 Sep 24, 2009

    I Bled the RR first and then the Left rear as it stated in my Haynes manual. I then went to the front and I am getting just air on the drivers side. I am using a air power bleeder and I have someone in the car and pumping brakes. I need to know if I have mixed up the lines on the anti lock brake module. I have changed 5 of the seven brake lines below the master cylinder.



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You need to bleed the brakes at each wheel. You can use a tube and jar filled with brake fluid and run the tube from the line to the jar to push the air out by pressing the pedal and when you let off it sucks fluid back in, instead of air. The autoparts stores sells a one man brake bleeding kit for like $20 it is veryu helpful.

Posted on Sep 24, 2009

  • James Brooks
    James Brooks Sep 24, 2009

    Ahh, I get it now. That is quite possible. You only wanna change 1 hose at a time to avoid this. If you have the wrong lines the fluid/air will not make its way to the cylinder to exit and will not bleed. Unfortunately I don't have a schematic for the ABS pump and don't think its in the haynes manual. AN easier way is to go to the junk yard or if you know someone who has a one (Astro/Safari) and note the positions of the lines..



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