Question about 2005 Chevrolet Silverado

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Fan control switch

I have a 2005 chevy silverado. the fan control switch has 0-5 settings. the fifth setting does not turn the fan on its highest speed. 1-4 works fine. where do i go from here?

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  • dino866 Nov 23, 2008

    good one joe, i figured that part out. now where is it and how do i get to it on the truck?

  • ArGonzalez Dec 13, 2008

    At first only control number 5 did not work now none of the controls 1- 5 work. I checked the fuses and all are O.K. Where do I go to check the fan switch?

  • JKLeary Dec 21, 2008

    I have a 2006 GMC Sierra - Fan switch has 5 settings - Does not work on #5 - Going from 4 to 5 I hear a click in the fan relay comming from under glove box.

  • nillig Jan 06, 2009

    I have the same problem. Works 1-4 but no 5. I replaced the resistor and the pigtail. ( the connectors were burned) made sure all connections were good and put everything back togeather. When I turned the fan to 5 it shut off again and has a clicking sound. could it be something else or could I have gotten a defective part from the dealer.



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The blower resistor and pigtail will need to be replaced. good luck ive seen this problem a lot of times mr gm ha ha

Posted on Nov 23, 2008


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