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Thread: installed electric fans with nelson performance wiring but have problems

  1. #1
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    installed electric fans with nelson performance wiring but have problems

    i recently installed 05+ electric fans with a nelson performance electric fan harness and retuned the truck with fan #2 settings but the fans stay on low speed all the time even when fan temperatures have been exceeded and same thing when i turn the a/c on... anyone know how i can fix the problem? i followed the instructions that came with the harness for 03/04 installation http://www.nelsonperformance.com/fan...s-instructions

    can anyone help me out thanks

  2. #2
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    bump for the afternoon crowd

  3. #3
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    Ground the blue PCM wire. What happens?

    Ground the green PCM wire. What happens?

    Ground them both, blue first. Green second. What happens?

  4. #4
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    Quote Originally Posted by farmtruc View Post
    Ground the blue PCM wire. What happens?

    Ground the green PCM wire. What happens?

    Ground them both, blue first. Green second. What happens?
    havent tried that yet i will try tomorrow and post results thanks

  5. #5
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    a little late but i finally got around to it lol well i grounded the green wire and nothing came on. i grounded the blue wire and both fans kicked on low speed. grounded both and they both still on low speed. can u address the issue?

  6. #6
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    Does your fan harness have pcm terminals on the end of the blue and green wires?

  7. #7
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    Quote Originally Posted by farmtruc View Post
    Does your fan harness have pcm terminals on the end of the blue and green wires?
    yes they both do my mechanic installed them for me and did them with pcm terminals installed on the existing pcm harness

  8. #8
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    Morning bump!!

  9. #9
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    Quote Originally Posted by kha4079 View Post
    Morning bump!!
    Please PM me with your name. Thank you.
    Nelson Performance
    210-626-0278
    facebook.com/nelsonperformance
    erica@nelsonperformance.com

  10. #10
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    Quote Originally Posted by Erica@NP View Post
    Please PM me with your name. Thank you.
    Pm sent thanks

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