I have a Ford F250 4.8L V-8 3/4 ton pickup. I need to replace the heater blower resister because the high setting is the only one that works now. I looked on the internet and one entry says under the glove box another says on the firewall near the blower motor. Where is the resister located?
Firewall.
With the hood open, you can see where the blower motor is against the passenger side firewall & plenum. a little toward the driver’s side you’ll see where the wires plug to the resistor. 2 Screws to change it out.