CK5
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Help it's COLD in tahoe!
- Thread starter 1STK5
- Start date
MOABDADC22
1/2 ton status
Re: Help it\'s COLD in tahoe!
Not sure, but I think the blower motor is on a relay under the hood.
Not sure, but I think the blower motor is on a relay under the hood.
Re: Help it\'s COLD in tahoe!
The blower motor relay is behind the glove box. Pull the glove box out and you will see the top of the air box. Theres 3 relays. Make sure it is clicking when you turn the fan on.
If it is, next pull out the resistor array out of the air box. It's shaped like this <> and it has 2 screws holding it in and a wiring harness plugged into the center of it. It's screwed into the top of the airbox. It holds the resistors that control the speeds of the motor. They are a common thing to have burn out. Usually you will loose everything but high because they don't control high.
My theory if the fan doesn't work at all would be that it's the relay.
The blower motor relay is behind the glove box. Pull the glove box out and you will see the top of the air box. Theres 3 relays. Make sure it is clicking when you turn the fan on.
If it is, next pull out the resistor array out of the air box. It's shaped like this <> and it has 2 screws holding it in and a wiring harness plugged into the center of it. It's screwed into the top of the airbox. It holds the resistors that control the speeds of the motor. They are a common thing to have burn out. Usually you will loose everything but high because they don't control high.
My theory if the fan doesn't work at all would be that it's the relay.
Re: Help it\'s COLD in tahoe!
Look up under the dash, below the glove box. That's where the blower motor is located. You'll see 2 wires going to the blower motor. One is power, the other is ground. Check to see if there is power on the power wire when the fan should be on. If there is, then the motor is dead. Changing it is a royal pain in the a$$. If there isn't any power at the blower, then you'll have to start working back through the circuit to find out where the power stops. /forums/images/graemlins/frown.gif
To change the motor you have to remove the glove box, ECM and the ECM mounting bracket. Then you can remove the sound insulation cover that is over the motor. You'll probably have to loosen the lower part of the dash to get the motor out. The guy that designed that setup needs to be slapped! /forums/images/graemlins/angryfire.gif
Look up under the dash, below the glove box. That's where the blower motor is located. You'll see 2 wires going to the blower motor. One is power, the other is ground. Check to see if there is power on the power wire when the fan should be on. If there is, then the motor is dead. Changing it is a royal pain in the a$$. If there isn't any power at the blower, then you'll have to start working back through the circuit to find out where the power stops. /forums/images/graemlins/frown.gif
To change the motor you have to remove the glove box, ECM and the ECM mounting bracket. Then you can remove the sound insulation cover that is over the motor. You'll probably have to loosen the lower part of the dash to get the motor out. The guy that designed that setup needs to be slapped! /forums/images/graemlins/angryfire.gif
