the relays are behind the glove box. you have to take the glove box out to have access to the relay for the heating system
Replace shoes brake 2003 Chevy
Most likely the Blower Motor Resistor.
This is typically caused by a bad resistor. Could be the switch itself, but it's usually the resistor.
Its not the relay, it is the blower motor resistor.
If yourtalking about the heater blower, I believe they are hidden behind the glove box inner liner.
it is under the glove compartment on the passenger side of the truck
Defective blower motor Resistor Pack. Replace it.
you have to remove the glovebox, its behind that, it has 2 bolts and a "connector", should be on the left side of the blower housing.
Replace the blower motor resistor.
Yes, located in the blower motor resistor pack. Follow the wires backward from the blower motor to find it.
It is located on the passenger side below the dash. A 7-wire harness goes to it. It is next to the blower motor, which is circular in shape.
Ain't no fixin it, you have to replace it with a new one.