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Thread: 03 GMC Sierra Gear & Tire Swap. ABS Light On

  1. #1
    Potential Tuner
    Join Date
    Feb 2014
    Posts
    7

    03 GMC Sierra Gear & Tire Swap. ABS Light On

    I have a 2003 GMC Sierra 5.3L extended cab auto trans. I swapped out the factory 3.73 rear end gears for 4.30's. I changed tires from 29 and change to 32. I programmed for the gear and tire change. Under WOT the traction control was kicking in and the abs light is on. from reading online it seems the abs front and speeds are different causing the issue. Could use some help on this please.

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Post the tune file.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.