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Thread: 01 blazer LS brain box

  1. #1
    Join Date
    Apr 2011
    Posts
    1

    Default 01 blazer LS brain box

    got a 01 LS blazer 4.3L,,,will crank & run fine cold but once its hot it wont turn over for love, God nor money. replaced distributor cap & button. put code reader on it & nothin comes up. figure its either brain box or coil pak. help please?

  2. #2
    Join Date
    Jan 2007
    Posts
    4,850

    Default

    Hi Renee,

    I'm assuming what you mean by "won't turn over" is "won't run, since you put a cap and rotor on it (as opposed to the starter ont operating). What you'll want to establish first is what is missing when it won't run - spark or fuel? Your Haynes manual will show you how to do that.

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