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  1. #1

    Default moisture under dash causing codes

    I have a 2001 Sierra and have never had problems before. It recently started giving check engine codes. My mechanic said a friend of his that works at a gm dealership told him it was do to condensation under the dash. He is trying to dry it out and get the codes reset. It started just all of a sudden. The vehicle is kept inside an enclosed garage all the time except when I use it to pull my boat on the weekends. He showed me under the dash where the computer is and the metal cover in there is spotted with rust all over the place. Has anyone else seen this? Has there ever been a recall by GM?

  2. #2


    I dont know of any recal, but it sounds possible.

    2002 Jeep Wrangler Sport 4x4 (the Yellow Jacket)
    4inch suspension 3inch body
    Straight 6 (383 Stroker within a year)
    36inch SuperSwamper TSL.
    Detroit Loccers
    Daily Driver Weekend Wheeler
    much more...

    2004 Sierra crew cab, 2wd, 5.3 V8
    2inch Daystar Leveling kit
    single dumped Flowmaster 40 sieries exaust(removed)
    Mb Blitz Chrome wheels
    Leer Bed Cover(for sale)
    50k miles

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