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At a loss, Efan Runs all the time 2000 Silverado

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Old Sep 1, 2009 | 11:52 AM
  #11  
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because the older OS the red 33 is a positive trigger not a negative.
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Old Sep 2, 2009 | 05:15 PM
  #12  
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Thats not true, it goes to ground. Fan 1 (42) is the one that is running all the time.
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Old Sep 2, 2009 | 07:27 PM
  #13  
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you doing truck silverado tuning now alvin???

Last edited by andrew383; Sep 2, 2009 at 07:45 PM.
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