GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

fan harness

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Old Dec 10, 2006 | 04:12 PM
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Default fan harness

how do you hook op one of white1's harness? and what realys do i need
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Old Dec 10, 2006 | 07:12 PM
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The relays should all be hooked up on the harness. That is the way mine was anyway. I might be able to get the directions that came with mine if you would like.
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Old Dec 11, 2006 | 12:02 AM
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that woulb be great, i didn't get realys bec when i got it form him he was out of the states
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Old Dec 11, 2006 | 05:32 AM
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I will try and get it to you by this evening.
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Old Dec 11, 2006 | 05:35 PM
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Damn dude sorry. Went out and looked and I must have thrown it in the woodstove thinking I really wouldnt need it again. Hopefully someone who knows how to do it real good could help you out. I had to follow the directions close since I wasnt sure what I was doing.
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Old Dec 12, 2006 | 09:06 AM
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ok cool, anyone?
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Old Dec 12, 2006 | 10:10 AM
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it's the same directions as for the Nelson Harness. the PCM Pin goes to slot #42 of the Blue connector on the PCM. The loose wire with no end gets tapped into the a/c clutch turn on wire, that wire is located in the harness right behind the alternator/ the red box. The wire color is green, but I forget if it's the one with the stripe or not, if you crawl under the truck and look at the a/c compressor there is two wires plugging in behind the compressor pulley, that's the same wire, note it and find it up near the alternator and use a T-Tap to connect. The relays you'll need are 30/40 Bosch style relays, it's a typical automotive relay and looks like these:
http://cgi.ebay.com/ebaymotors/SPDT-...62592653QQrdZ1
I won't endorse any particular brand. The harness is built so that you can either mount it to the fuse center cover or it should fit under the cover
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Old Dec 12, 2006 | 10:12 AM
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ok, i also if i remeber had a red wire too. and what do i need to do to the pcm to get these to work
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