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  1. #1

    Default New help with chevy silverado

    Truck has been running lean change mass senser and still running lean to much air not enough gas

  2. #2

    Default

    Quote Originally Posted by Ryan silvani View Post
    Truck has been running lean change mass senser and still running lean to much air not enough gas

    Ryan, you need to check for a Vacuum Leak.....check all Vacuum and PCV Hoses, check All Hoses and Connections at the Air Intake System, and also test the Intake Manifold Gaskets for Leakage.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










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