Question about 2006 GMC Envoy

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Blower dosent blow on high

I have a 2006 gmc envoy and the fan dosent work on high all other settings work except high

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  • parkerbay Mar 05, 2009

    lost higher blower fan speed a couple of months ago and now have no blower speeds at all.

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Fan blower speed switch under hood usually in fire wall or in heater box under dash area if you do not change it you will keep losing all your speeds until nothing left! it is not!!!!the one in your dash that you hand operate! hope this helps.John

Posted on Jan 24, 2009

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The blower motor resistor controls fan speeds ,gm has had problems with wireing harnness to resisistor

Posted on Mar 01, 2013

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