How do you really test your blower motor??? Do you seriously hook it up to the car

L

LeAnne

New member
Better to simply check for 12 volts at the blower connector - if it's there and the blower isn't spinning, it needs a blower motor.
If it's not there, you will need to trace the circuit back and find out why.
 
battery? I have a 1993 dodge dynasty.....The heat does not work I look at the fuse it looks good and I want to know for sure if it is the blower motor and no the resistor because I'm getting a blower motor from a junk yard and I will not be able to return it (I'm poor lol) so I have been reading things online that you hook up the blower motor to the battery to test that.....is that really true and how do you do it and where is that at(the blower) motor and what do you hook it up to?
So your saying that I use the jumper cables like when your jump starting a car and do this right? I'm scared lol
 
Better to simply check for 12 volts at the blower connector - if it's there and the blower isn't spinning, it needs a blower motor.
If it's not there, you will need to trace the circuit back and find out why.
 
Hooking up to a battery is an easy, quick, and dirty way to test an electric motor. The blower should have a plug with 4 prongs inside--one of these is ground, the other 3 are hot and set it to different speeds. If you supply 12 volts to the hot side and ground the ground side, the motor should turn.

BTW, most common "failure" of blower motors is they get gunked up, and friction keeps them from being able to turn. If you pull the motor out, soak the moving part with an electric-safe penetrating lubricant (such as WD-40) and work it back and forth a little to get the gunk out, you can usually get it to work again. I've revived 4 or 5 blower motors that way, lots cheaper than the junkyard.
 
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