Question about 1999 GMC Yukon

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Cab fan blower does not work

I have replaced the blower motor and the blower motor resister and the blower motor relay i do not know what else to do or to replace

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  • Expert
  • 113 Answers

Check fuses,

Posted on Dec 30, 2013

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Posted on Jan 02, 2017

emissionwiz
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SOURCE: 1995 GMC Sierra Ext Cab

You need to replace the blower motor resistor

Posted on Sep 23, 2008

  • 12 Answers

SOURCE: Inside Fan Relay location

replace blower motor switch on dash

Posted on Dec 24, 2008

  • 5 Answers

SOURCE: How do you replace blower motor resistor on a 2004

Here is how to change the resistor- but also pay attention-
Did you also change the connector at the same time?
If you are changing the resistor due to overheating and melting of plastic, then you need to do the connector also, or else it will repeat fail in a very short time.

Here is a step-by-step check you can do to fix it. If you are onlygetting high speed (setting 5), then most likely you have a resistorproblem, or the wiring connector to the resistor is bad. The groundwire prong being bad is a possible cause.

Check this for step-by-step checks:

http://www.sparkys-answers.com/2008/07/2005-chevrolet-silverado-blower-inop.html

Posted on Sep 19, 2009

  • 47 Answers

SOURCE: fan does not work in 96 gmc sierra

it shuld work on high temperature only

Posted on Nov 25, 2013

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1 Answer

Fan does not work in 96 gmc sierra


it shuld work on high temperature only

Nov 24, 2013 | 1999 GMC Yukon

1 Answer

1992 chevy C1500: Heat works on low speed, no medium, and high only works intermittantly.


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The fan switch provides power or ground to the resistor and there would be a high speed blower relay to bypass the resistor.
But in your case the fan switch is part of the controller.
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If you have the model with 3 relays you may need to check them.

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