84 pickup blower motor not working
11-24-2010, 01:03 PM
#1
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84 pickup blower motor not working
My blower motor just quit working, I checked the fuse and everything else I can think of, is there a circuit breaker for the blower motor? If so, where is it located?
11-24-2010, 01:56 PM
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If the resistor is toast, the fan would still blow on Hi.
Tap the motor with something blunt (under the glove box) If it runs, it won't for long. Time for another motor. 3 - 8mm nuts to get it out. Hardest part is crawling up and under the dash. I had to replace mine in my 85 a year ago. Just worn out.
Tap the motor with something blunt (under the glove box) If it runs, it won't for long. Time for another motor. 3 - 8mm nuts to get it out. Hardest part is crawling up and under the dash. I had to replace mine in my 85 a year ago. Just worn out.
11-27-2010, 05:09 AM
#4
I just went through the entire diagnostic on this.
First check the fuses....there are 2 you need to check...heater 20A located behind the glovebox and to the left. The other is the IGN fuse in the drivers side panel under the dash.
Next check the relay which is located next to the 20A heater fuse. You can swap it out with the headlight relay...they are the same.
If thats good pull the fan motor and apply 12v dc to it and see if it runs (you can unplug it and jumper the voltage to it instead of pulling it. If it runs without binding its ok. ( I would take it out because chances are it has leaves and debris in the fan cage anyway)
That would leave the switch or wiring if all else checks out.
First check the fuses....there are 2 you need to check...heater 20A located behind the glovebox and to the left. The other is the IGN fuse in the drivers side panel under the dash.
Next check the relay which is located next to the 20A heater fuse. You can swap it out with the headlight relay...they are the same.
If thats good pull the fan motor and apply 12v dc to it and see if it runs (you can unplug it and jumper the voltage to it instead of pulling it. If it runs without binding its ok. ( I would take it out because chances are it has leaves and debris in the fan cage anyway)
That would leave the switch or wiring if all else checks out.
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Sterdaddy (12-10-2021)
11-27-2010, 05:25 AM
#5
If the resistor is toast, the fan would still blow on Hi.
Tap the motor with something blunt (under the glove box) If it runs, it won't for long. Time for another motor. 3 - 8mm nuts to get it out. Hardest part is crawling up and under the dash. I had to replace mine in my 85 a year ago. Just worn out.
Tap the motor with something blunt (under the glove box) If it runs, it won't for long. Time for another motor. 3 - 8mm nuts to get it out. Hardest part is crawling up and under the dash. I had to replace mine in my 85 a year ago. Just worn out.
- http://www.4crawler.com/4x4/CheapTri...ml#MotorRepair
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