The blower resistor on a 1999 Chevy truck Z1500 is located behind the glove compartment. There is also a resistor on the firewall next to the blower motor itself.
The blower motor resistor is located on the passenger side under the glove box. Left side. there is a cover on the blower motor. remve the cover, this is the resistor. there is an electrical plug there.
NO not even close. You must stay under the year of 1999
Blower motor: remove the glove box and you will see the blower motor and blower resistor.
There is really no method to "check" the resistor, text by substitution.
there is a resistor that controls the speed and should be near the blower motor its called blower motor resistor
Its located next to the blower motor housing and its called a power unit.....
The resistor is bolted into the evaporator case near the blower motor. It is accessed under the passenger side dashboard. The trim/carpet along the transmission needs to be removed. You can then unplug the connector and remove/replace the resistor.
Not to be smart but there is a little button on the face that says "clock".
Held in by two screws in a housing just to the left of the blower motor housing.
Inside dashboard in path of air that blower motor blows.
the heater blower resistor is located on the passenger side footwell near the firewall. a complete how-to replace the resistor, along with photos is available on newcougar.org http://www.newcougar.org/forums/how-tos/3732-fixing-heater-blower-resistor-install-photos.html