Question about 2002 GMC Envoy

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Fan blower does not work on any setting. - 2002 GMC Envoy

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  • Anonymous Dec 09, 2008

    How to replace blower motor

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There is a relay next to the blower motor that needs to be reset by uplugging and re-plugging after 30 seconds. That worked for me.

Posted on Dec 30, 2008

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Check the fuse , most likely under the hood . should be a fuse box check ,your owners manual for location . if the fuse keeping blowing ,then replace blower motor

Posted on Dec 03, 2008

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1 Answer

Blower Motor/Fuse


On Nissan vehicles, the blower motor gets power from the fuse box, and the resistor and fan speed control provide the ground circuit.
So you should be able to ground the motor and make it run if you have power going to it. Then you would need to check the resistor and fan switch. The high setting bypasses the resistor.

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Aug 08, 2012 | Cars & Trucks

1 Answer

My bmw 318 is blower fan not working


Blown Fuse
  • Usually the first thing to inspect when the blower fan stops working is the fuses to see if any are blown. Locate the 10A cluster fuse or the 25A HVAC fuse in your car manual, and examine them to determine if they need replacing. The car owner's manual will tell you where to find the fuses that are connected to the heat and/or air conditioning. On the interior fuse panel of the car, a 30 amp fuse is labeled "Heater" or "HVAC."

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hope this helps, James Booth

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3 Answers

The fan/blower only works on the high setting.


It probably is the fan switch itself. They are around $30. for a new one. You can take it out and check to see if you have power to all the settings with a ohm meter or test light. They are not real hard to take out.

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1 Answer

Blower on my 2004 Chev Colorado only works on high setting #4.


You need a resistor pack, which is likely located in the air box, near the blower motor.

Jun 29, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

My fan/blower won't run on high setting. It works


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Jun 25, 2009 | 1993 Buick LeSabre

2 Answers

Heating Fan dosent work on the first two settings


you have a bad Blower Motor Resistor, you will most likely have to get this from the dealer, and it is located right around the blower mounted to the blower housing. Good luck and don't forget to vote. Thanks

Jan 12, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

The front and rear fan blower guage will only run on high.


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Jan 02, 2009 | 2001 Dodge Grand Caravan

1 Answer

Vent fan only works when set to 4


Hi.....
On your Vehicle the problem for the FAN speed is NOT the FAN switch.
99.9 % of this problem on cars is the BLOWER MOTOR RESISTOR.
The blower motor resistor give the speed to the Fan.
But on High speed the switch make a By pass of the switch using a Relay for the high speed.
The Blower motor resistor, is located Beside of the Blower motor On the passanger compartment.

If you replace the blower motor resistor you have 99.9% of this will solve your problem.

I'm a Mechanic.

I hope this help on your problem.
Thank you for use fixya...

Oct 09, 2008 | 2003 Nissan Altima

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