interior fan switch failure

[Tom1999d]

I have a 2002 Envoy with 96k - mostly trouble free miles.

I recently lost interior fan speeds 1 thru 4. 5&6 still work.

Any help?
Tom

[maxwedge]

easy fix replace blower resistor mounted on heater case behind glove box, 25.00 part.

[Tom1999d]

Originally Posted by maxwedge

easy fix replace blower resistor mounted on heater case behind glove box, 25.00 part.

do you have the GM part number? Big help if you do.

[Tom1999d]

Originally Posted by Tom1999d

do you have the GM part number? Big help if you do.

OK I've been behind the glove box and I dont recogonze the resistor block right away. Is it on the right side, left side? Can you descrribe it.

Tom

[Tom1999d]

I fixed it. 2 screws (7mm) to remove kick panel below the glove box, 2 screws to drop the resistor straight down (7/32"). Unplug and plug in the new one. GM part no 89018604 - for my 2002 SE. The fan works fine and!!! the AM static noise is all but gone! I have digital photos & directions if anyone wants them. Tom

[gavin123]

Originally Posted by Tom1999d

I fixed it. 2 screws (7mm) to remove kick panel below the glove box, 2 screws to drop the resistor straight down (7/32"). Unplug and plug in the new one. GM part no 89018604 - for my 2002 SE. The fan works fine and!!! the AM static noise is all but gone! I have digital photos & directions if anyone wants them. Tom

Could you kindly forward the photos & directions for the project above.

Sounds like I have the same issue, gavinking24@yahoo.ca

[03 lowered envoy]

Blower Motor Resistor Assembly Replacement
Removal Procedure
Remove the right closeout/insulator panel. Refer to Closeout/Insulator Panel Replacement - Right in Interior Trim.



Disconnect the blower motor resistor electrical connector (3).
Remove the blower motor resistor mounting screws (2).
Remove the blower motor resistor (1).
Installation Procedure




Install the blower motor resistor (1).
.

Install the blower motor resistor mounting screws (2).

Tighten
Tighten the screws to 1.9 N·m (17 lb in).

Connect the blower motor resistor electrical connector (3).
Install the right closeout/insulator panel. Refer to Closeout/Insulator Panel Replacement - Right in Interior Trim.

[Zingbat]

Originally Posted by Tom1999d

I fixed it. 2 screws (7mm) to remove kick panel below the glove box, 2 screws to drop the resistor straight down (7/32"). Unplug and plug in the new one. GM part no 89018604 - for my 2002 SE. The fan works fine and!!! the AM static noise is all but gone! I have digital photos & directions if anyone wants them. Tom

It sounds like I have the same problem with my 03 Envoy. Can you send me the digital photos and instructions? cshaun@sbcglobal.net

[ronin_anthony]

There are two different resistors for the envoy. I've seen where some models with dual climate control use a resistor that costs $90.

[Postman77]

Can you forward pics for me, tpost@bpsnebr.org