Question about 2002 Chevrolet Silverado 1500

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HEATER/DEFROSTER FAN QUIT WORKING

3 WEEKS AGO STARTED TRUCK FAN WOULD NOT WORK, THE NEXT DAY STARTED AND WORKED PERFECT TILL TODAY.

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  • Chevrolet Master
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Could be the blower motor, or the resistor, or a bad connection in the harness. Someone would need to check for power and ground at the motor first.

Posted on Dec 12, 2012

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Posted on Jan 02, 2017

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  • 116 Answers

SOURCE: 1998 chevy silverado 1500 heater fan wont come on.

replace the blower motor .,....

Posted on Dec 11, 2008

  • 1 Answer

SOURCE: Blower does not work on my 2006 Chevy Silverado truck

I had this same problem. What I did to resolve it was to slap the underside of the fan housing (in the passenger floor board) until the blower came back on. The fan/blower housing is that big black box right under the glove compartment. I know that sounds stupid, but I think there is a plug above the blower that is not making a good connection, so when I slapped it upwards it reseated itself and the blower came back on.

Posted on Jan 03, 2009

  • 90 Answers

SOURCE: heater fan switch only works on 4. nothing on 1-2 or 3

Most likely the blower motor resistor has failed. GM offers an updated version.

Posted on Jan 17, 2009

  • 3 Answers

SOURCE: a/c heater climat control switch

Check the relais module located inside under the rh side of the heather box you can see the connector most of them need to be replaced as they burn out you may need to replace the blower motor as well,high amp draw caused by faulty bearings will overload the blower motor controller

Posted on Feb 15, 2009

r_mcalhoun
  • 166 Answers

SOURCE: Blower fan resistor module replaced, worked for 2 days quit again

hi you probely have a draging blower motor. if it pulling more than 25 amps replace it and check akk wirring connectors for burn or hot spots. good luck

Posted on Jul 17, 2009

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