Behind the glove box.Remove the glove box and on top of the duct work for your heat is a little black box,that is your relay.Unplug it and replace it,plug the new one back in and your ready to go.
There is none - usually it is the module in the top of the heater / blower box (resistor module) that is the problem.
Look under the dash on the passenger side
2004 ford expedition front blower not working
blower motor for 1998 gmc sierra 4x4 is located on the passsenger side,under the dash, you will need to remove the glove compartment door for easier accessand to remove blower motor cover.
The resistor is located on a small circuit board close to the blower, it can be seen by removing the glove compartment.
it should be located in the engine compartment,against the firewall.
Under the dashboard at the feet of the passenger side.
could possibly be the blower motor resistor. which is generally located on the passenger side under the dashboard by the blower motor.
under the dash on the passenger side, remove the panel on the bottom of the dash, and its behind the blower motor
On my 2002 it is located on the air plenum just below the blower motor on the passenger side fire wall inside the engine compartment.
In the fan box behind the glove box.
By blower I assume you the motor.It is located under the hood,where the right inner & outer fender meet the firewall.