2000 379 A/C fan speed issue

Discussion in 'Peterbilt Forum' started by Geckolyn, Apr 22, 2013.

  1. Geckolyn

    Geckolyn Light Load Member

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    Jun 23, 2010
    Queen Creek, AZ
    0
    Fan works on high only in the cab and sleeper. any ideas? All fuses seem to be OK.

    Thanks for looking.

    Lyn
     
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  3. nasriza

    nasriza Road Train Member

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    Feb 1, 2013
    Chicago, IL
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    You're blower resistor is bad you just need to replace it its actually really easy it should be located somewhere right near the blower motor.
     
  4. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,810
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    Jun 14, 2009
    romulus,mi
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    open and pull down glove compartment.5 min.job.unplug,remove 2 phillips screws,replace.good luck.
     
  5. carrkool

    carrkool Heavy Load Member

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    May 10, 2012
    adah, pa
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    to test ot fix as temp run a jumper wire around each post.
     
  6. Lone Ranger 13

    Lone Ranger 13 Road Train Member

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    Sep 27, 2012
    Asheville, NC
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    My 86 Toyota Tercel did the same thing . Changing that resist fixed it.
     
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