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stalling when cold

Discussion in 'GM Powertrain' started by bigbrett, Nov 27, 2009.

  1. bigbrett

    bigbrett Rockstar

    03 tahoe 5.3
    as soon as the alternator tries to draw some power(defrost etc) the rpm drops off and the engine stalls.
    with no draw,the engine idles fine and once it's up to temp it's perfect. I'm tired of two footing in the morning

    suggestions????

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