Question about 2005 Chevrolet Avalanche

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When I start my vehicle, I press the heat button and it doesn't come on right away until an hour later. Was told maybe it was the thermostat and blower motor. We've changed those but still the same pr

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Check plug for heater switch. if your ignition switch is just past on it can that to.

Posted on Sep 21, 2017


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Posted on Jan 02, 2017



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SOURCE: Blower motor or resistor?

If it was the motor that went out then it would not blow at all. The resistor is the culprit that starts killing off speeds. It should be about $25 to $30 at an aftermarket store like autozone or advanced auto parts.

Posted on Jan 09, 2009



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SOURCE: Blower motor or resistor?

Yes its the blower motor resistor.

More then likley theres some trash or something in it, or possibly the motor itself is on it's way out. There not that bad to pull out of that body car, just pull it out and see what you can see.

The blower motor is under the glove compartment

You can replace the resistor on your own. Please find a detailed diagram which would guide you to do it.


Posted on Apr 09, 2009


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SOURCE: Blower motor or resistor?

I had a truck about the same year with the same problem, it was the wiring harness, but id check the resistor and the fan first before replacing anythings,

Posted on May 20, 2009


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SOURCE: How do i change the Blower motor resistor on a 2005 chevy impala?

The blower motor resistor is located behind the glovebox mounted in the fan housing box under the dash.

Posted on Jul 20, 2009


  • 1 Answer


it may not be the blower motor. it may be the blower motor control module which use to be the resistor. it's located under the pas. side. remove the black coyer , 2 scaews above the pas. foot area. then remove the blach unit that has a purple wire going to the back of the motor on the right. price about 140 dollar with tax.

Posted on Jul 30, 2009

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Hello! First of all you have an air "bubble" blocking your thermostat...If you have a garage and can get the vehicle inside let it cool so you can open the cap...Start the engine...Turn the heat on high...As the engine warms air will bubble out of the top of the reservoir ...When the thermostat opens...Slowly add 50/50 until all air has escaped...Don't be in a hurry, wait until all air has stopped and system is full...To be on the safe side you may want to replace the thermostat before you begin this procedure...

In the under-hood fuse box...Try pulling the ABS fuse (60A)...Test drive the vehicle to see if it will perform braking wise until you can fix ABS...Send a comment and let me know how you make out...


I’m happy to help further over the phone at

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