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Rewireing blower motor coil

Tiny
STEVEO_420
  • MEMBER
  • 1985 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 156,800 MILES
How do u wire a factory 2 plug resistor coil into a aftermarket 1 plug coil
Sunday, January 16th, 2011 AT 1:25 AM

10 Replies

Tiny
STEVEO_420
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  • 12 POSTS
This car has no ac as well
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Sunday, January 16th, 2011 AT 1:57 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You have 2 wires going to the + side of the coil. One directly from the ignition switch that is hos in "start" only. The other wires comes from the ignition switch in "run" position only and goes through the resister and then to the coil.
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Sunday, January 16th, 2011 AT 2:15 AM
Tiny
STEVEO_420
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The problem is it has a 4 wire main connection and a 2 wire connection for the fan how can I wire the 2 fan wires into the main coil plug with 4 wires
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Monday, January 17th, 2011 AT 3:27 AM
Tiny
WRENCHTECH
  • MECHANIC
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What do fans have to do with a coil? I have no idea what you are trying to do.
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Monday, January 17th, 2011 AT 3:34 AM
Tiny
STEVEO_420
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It has to do with the fact that the electric fan has 2 power wires attached to it that attach to heater coil or resistor for blower and the new resistors do not support the extra 2 wire plug from fan to resistor they just support the ignition wires and switch
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Monday, February 21st, 2011 AT 11:46 PM
Tiny
WRENCHTECH
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Then you simply have the wrong resister and you need to get the correct one.
The heater CORE is a metal housing that contains coolant. It has nothing electrical.
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Tuesday, February 22nd, 2011 AT 12:03 AM
Tiny
STEVEO_420
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Yep already installed that I cannot find the proper resistor by motocraft anywhere and every place I bring my old one to has same problem not enough plugs on it
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Tuesday, February 22nd, 2011 AT 12:11 AM
Tiny
STEVEO_420
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I know this seams like me just being dumb but iv tried everything lol except re wiring my self but do not know how I will take pitchers for u guys to clarify and show u
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Tuesday, February 22nd, 2011 AT 12:13 AM
Tiny
WRENCHTECH
  • MECHANIC
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You can wish it will work forever. That isn't going to make the wrong part work. Unless you find the correct part, you have no blower.
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Tuesday, February 22nd, 2011 AT 1:19 AM
Tiny
WRENCHTECH
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What I'm guessing here is that you have auto temp control which uses a module and not a resister and you're trying to make a resister work in a system that doesn't use one.
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Tuesday, February 22nd, 2011 AT 1:21 AM

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