Question about 1997 GMC Sonoma

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Have a 1997 gmc sonoma had blower motor bypassed with toggle switch cause regular switch broke. Wanted to correct problem installed new blower control board and now nothing still works. replaced resistor, and relay for unit. relay just makes a continuous clicking noise

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Posted on Jan 02, 2017

  • 1796 Answers

SOURCE: how doi locate the resistor for a blower motor on

Hi!!
Check under dash, passenger side, if necessary, remove cover to access Blower Housing Assy., the harness has two terminals, one for the Blower Motor and one for the Blower Motor RESISTOR which is fastened by two 7 or 8 mm. screws to the Housing.
Here is a picture of the Blower Housing Assy. showing the Resistor.
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Posted on Dec 18, 2010

  • 479 Answers

SOURCE: blower motor resistor replacement

the relays are behind the glove box. you have to take the glove box out to have access to the relay for the heating system 

Posted on Dec 10, 2008

  • 599 Answers

SOURCE: 2002 GMc Envoy Blower motor isnt working

do you have power to it..or a bad ground around blower motor? is the head unit not signaling the blower to run?...calling it with A/C or heat or just fresh air ..try all settings and advise...good luck

Posted on Jan 08, 2009

  • 34 Answers

SOURCE: 7 wire harness going to blower motor resistor

There is an updated resistor/connector package. Very expensive from GM, try your local NAPA or other parts supplier for a replacement

Posted on Jul 09, 2009

  • 62 Answers

SOURCE: blower motor resistor location on a 1996 gmc 1500?

It is located on top of the heater box in the passenger side remove the glove box to gain acess there are two 7mm srews and a relay braket holding it in place it is a tight squeeze but can be removed with a 1/4 inch ratchet.

Posted on Aug 01, 2009

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