Can anyone tell me where the blower motor relay is located on a 1998 F-150?
I have replaced the blower motor, the blower motor resistor, the fan speed control switch, and wired in a new pigtail that connects into the back of the speed switch (one of the 4 contacts was broken) and STILL, after all this, my heat/defrost/ac still doesn't work. There is power coming from the fuses (fuses are fine) and power getting to the blower motor, however there is no power getting to the speed switch. The last thing remaining to change is the blower motor relay. Any help would be greatly appreciated. Winter is here, and I need defrost. Thx.,

 

should be in the power distribution box under the hood. dont know the exact location so if you have a manual then look in there. sorry i couldn't be of mor assistance

 

In the "Blower Flasher Relay Block" in the center of the dash, low. Doesn't your owner's manual show it?