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No voltage to main blower motor. Motor new & OK, fuse OK, 13.4 volts at fuse.

(1995 Ford E-150)
in Aurora, CO on May 07, 2014
Wiring being the least likely, that leaves the 4 speed switch, blower resistor, and is there also a relay???
Where are the resistor/relay?
Displaying 1 answers & 6 comments
Popular Answer
of G. T. Service Center on May 07, 2014
Did you check the ground, how is it.
on May 07, 2014
When I run a single hot jumper to fan hot lead it runs full speed.
of G. T. Service Center on May 07, 2014
So your wiring is not hot to the blower. The resistor is a ground, the relay is in the left side of the engine compartment and goes through the orange/red wire straight to the blower motor.
on May 07, 2014
So if the resistor is a ground, and I ran a hot lead to the motor and it ran, then the resistor is not the problem. I believe that I should next check the voltage in and out of the relay???
of G. T. Service Center on May 07, 2014
That sounds like a plan to me. The control unit puts b+ With the key on, to one leg of the relay should be a good ground to another. The blower fuse goes to another then when the relay trips it sends b+ to the blower. Go to bed shortly.
on May 07, 2014
Thanks much!!! I'll give it a whirl in the AM.
of G. T. Service Center on May 07, 2014
10-4. Good luck.
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