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Buick Forum: Newby
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Thread: Newby

  1. #1
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    Question Newby

    New to the Roadmaster world. I have owned a Buick Regal in the past, but always have loved the Roadmaster. Recently bought a 1996 Roadmaster sedan LT1 Collector's Edition. I have a DTC code P1641 come up. Any ideas on the best place to start??
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    Andy
    1996 Roadmaster Collector's Edition

  2. #2
    HotZ28's Avatar
    HotZ28 is offline Full Member My Buick(s): 1996 Roadmaster Limited Collectors Edition 58k - 1996 PAU
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    Re: Newby

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    Welcome to the forums! P1641 would indicate a problem in the #1 coolant fan control circuit. Does one fan come on when you turn on the AC?
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    1996 PA Ultra Series II - 3.4 pulley (11.5 psi boost), Autolite 104's, MSD coils & wires, 160 deg. T-stat. Flashed '97 PCM, Lucerne 17" Chrome Wheels
    Cold air is OK.....Turbo Charging is better....but, I'd rather be Blown!!



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