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

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.

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.

http://autorepair.about.com/library/images/bl629a-lib.htm

Thanks

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,

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.

SOURCE: BLOWER MOTOR ON 2004 AVALANCHE IS SLOWLY PUMPING OUT AIR

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.