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Thread: service brake system

  1. #1
    Member
    Join Date
    Jun 2008
    Posts
    59

    Default service brake system

    Myself and a few other people have had problems after recalibrating the speedometer. Sometimes the speedometer will start to act lazy and start bouncing and then trigger the ABS and Parking Brake light. Service Brake System will show up on the Display.
    I had swapped Gears and a few others had changed tire sizes.
    Here's a link to a thread that was brought up. I've yet to find any resolve on the issue in any searches on the net.
    http://www.performancetrucks.net/for...d.php?t=434702
    All sensors are fine and I've checked my speedometer with my GPS and it's accurate all the way up the odometer.
    The problem only happened after recalibrating.
    Video:
    http://s175.photobucket.com/albums/w...rvicebrake.flv
    Last edited by ViciousKnid; March 8th, 2009 at 12:44 PM.
    -Joshua
    408 ECSB|244/248|WCCH 2.5 LSA|
    FLT4|COS3 SD EFI Live|FTI 4200|4.30's|truetrac|


    To Err is Human. To ARRR is Pirate.

  2. #2
    Senior Member
    Join Date
    Sep 2008
    Posts
    196

    Default

    as of now im having the same problems. i check my brakes and they seem fine.
    2002 4.2L I6 Trailblazer LTZ

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