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Electric fan wiring and temp question

Discussion in 'Technical Chat' started by cicada83, Jan 11, 2013.

  1. Jan 11, 2013 at 6:19 PM
    #1
    cicada83

    cicada83 [OP] Well-Known Member

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    I am converting my mechanical clutch fan to an electric unit I bought from LCE. The question I have is I tapped into my radio 12v on my fuse box when I wired my fogs. Can I use that same connection for the 12v fan connection? Or will it overload it. I am thinking it just is signaling it to turn on and not powering so it should be okay...right?

    Other question is once it is installed it says to calibrate it to turn on at a certan temp. Anyone have suggestions on how to do this and/what temp it should it start running at?
     
  2. Jan 11, 2013 at 9:48 PM
    #2
    caribe makaira

    caribe makaira Lurker No More

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    @ 176º ~ 183º F - thermostat opens.
    @ 171º F - thermostat closes.

    For power, it should be like a 30amp motor - don't use your radio/fog tap. There are a few open pins at the engine fuse box. Use any of those or a direct connection to (+) battery pole.
     
  3. Jan 12, 2013 at 3:53 AM
    #3
    cicada83

    cicada83 [OP] Well-Known Member

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    Volant ram air, Bestop soft topper
    There is a direct battery connection but for the fan to turn on only when the car is on it requires a 12v ignition hook up. Still use the fuse box in engine compartment?
     
  4. Jan 12, 2013 at 6:52 AM
    #4
    caribe makaira

    caribe makaira Lurker No More

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    [​IMG]


    Which wire you have questions on?
     
  5. Jan 12, 2013 at 12:36 PM
    #5
    cicada83

    cicada83 [OP] Well-Known Member

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    Volant ram air, Bestop soft topper
    Yes this is the diagram. The main question is the 12v thermostatic wire. I have my 12 v tapped into from wiring aftermarket fogs on the stereo in the cab. Can I use this? Or is there a better option in the engine compartment fuse box?

    Also where is the positive wire for the ac compressor for the green wire hook up?
     
  6. Jan 12, 2013 at 6:17 PM
    #6
    caribe makaira

    caribe makaira Lurker No More

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    2 choices -
    1. With always hot selection-fan runs until low temp reached after engine off.
    2. With ACC selected (in cab) fan off with vehicle off. (unless override switch used)

    Since small red wire is relay select then it's fine to jumper into stereo/fog location.

    Only one purple wire going into compressor.(covered in black loom)
     
  7. Jan 13, 2013 at 3:31 AM
    #7
    cicada83

    cicada83 [OP] Well-Known Member

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    Volant ram air, Bestop soft topper
    Is the compressor the pulley on the front of the engine, right top with a canaster on top of it? I have the 2.7
     
  8. Jan 13, 2013 at 3:34 AM
    #8
    JRFugitt

    JRFugitt Well-Known Member

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    Good info, saving this one for later!
     
  9. Jan 13, 2013 at 6:30 PM
    #9
    caribe makaira

    caribe makaira Lurker No More

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    Hmmm...that be the power steering pump..it's the one below...

    [​IMG]


    [​IMG]
     
  10. Jan 14, 2013 at 3:50 AM
    #10
    caribe makaira

    caribe makaira Lurker No More

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    Or You may also tap into the compressor relay pin 3, that way no wires are cut. Cramp stripped wire into slot/use a modified(flat) ATM fuse tap/etc.

    [​IMG]
     
  11. Jan 14, 2013 at 3:26 PM
    #11
    cicada83

    cicada83 [OP] Well-Known Member

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    Volant ram air, Bestop soft topper
    Perfect! Thanks for all the help on this!
     
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