SuperStock Posted December 9, 2010 Report Share Posted December 9, 2010 I wanna go to the junk yard and get a set of e-fans. What year and model should i take them off? I have an 04 2500HD. I'm not sure what size my radiator is. If I get the harness to connect the e-fan do I still need a retune. Quote Link to comment Share on other sites More sharing options...
zachm89 Posted December 9, 2010 Report Share Posted December 9, 2010 you should have the 34" radiator which means you need fans off an 05+ 1500 (or 2500?) truck. i got my fans from an 06 and a harness from nelson. either way youre going to need a retune to tune for fan settings. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 9, 2010 Author Report Share Posted December 9, 2010 Yea I was thinking I could get the fans off and 05 2500HD. Quote Link to comment Share on other sites More sharing options...
zachm89 Posted December 9, 2010 Report Share Posted December 9, 2010 pretty much anything with a 34" radiator and the fans will work just fine. you can either snag the stock harness off the truck if you want to fool with it or buy one directly from nelson or another member. theres usually a couple floating around the forums. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 9, 2010 Author Report Share Posted December 9, 2010 Yea If I cant get the factory harness, than I will just order it from blackbear. My friend works at the chevy dealer ship and when I order parts there they give me the discount employee price so I was just thinking about piecing it together but I don;t know if that is a good idea? Quote Link to comment Share on other sites More sharing options...
zachm89 Posted December 9, 2010 Report Share Posted December 9, 2010 if you can get a set brand new from the dealer at cost id say go for it! that way if anything ever goes wrong its on them, plus you have the peace of mind of putting new parts on instead of something thats been sitting in a junk yard for months. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 9, 2010 Author Report Share Posted December 9, 2010 Yea I am not sure if I can buy the complete assembly or I need to buy the motors fans and shroud sepertley. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 9, 2010 Author Report Share Posted December 9, 2010 I called the junk yard and they have the complete assembly for $235 with 50k on them and part of the harness. I called the dealer and they said they do not make complete assemble buy I can buy the fans motors and shroud total price is $465. Quote Link to comment Share on other sites More sharing options...
misterp Posted December 9, 2010 Report Share Posted December 9, 2010 The GM fans are a good upgrade; as you discovered, you cannot buy it in "kit form" or "assembled form" from the dealer. Harness - I would GREATLY recommend you get the complete fan harness from the donor truck, it will save you $$$. You cannot buy just the efan harness from the dealer, because all those wires are bundled in the headlight wiring loom - GM makes you buy the entire headlight & fan control wiring loom = expensive! You need to separate the efan wires from the donor truck, it's not as hard as it sounds and when you've done it once only take a few extra minutes time. You need the add-on relay/fuse block which is inside the electrical center cover. Yes you will need a tune to activate the EFan circuitry inside the PCM. Mr. P. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 9, 2010 Author Report Share Posted December 9, 2010 So what wiring do I need on the donor truck is there a diagram I can go buy. Im just confused about the headlight wiring loom? Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 10, 2010 Author Report Share Posted December 10, 2010 I found the factory wiring harness part number # 15912597 Quote Link to comment Share on other sites More sharing options...
BgRd1 Posted December 10, 2010 Report Share Posted December 10, 2010 Im not sure if you want to do this but this is another way to save you some dough, go to autozone and pick up 2 16" torqflo fane and 1 adjustable e-fan switch kit. The total cost will be about 140-150 for the fans and about 40-50 for the switch kit. When you install them you would keep the stock fan shroud (it helps route the air to the motor instead of all around it) these fans attach to your radiator with bolts or with these nifty zip tie type things, sounds kinda sketchy but ive done this on my truck and my last truck and I have had no problems. The only downfall is having to do some wiring for the switch kit but thats not even so bad. Tip: the switch kit comes with a wire that you can either connect to the positive side of the a/c compressor wire or to a switch inside the cab. I would conmect it to a switch so you can turn them on at the track while the motor is below the temp where they kick on automatically. Hope this helps bro! Sent from my Samsung Vibrant using Tapatalk Quote Link to comment Share on other sites More sharing options...
chpspecial Posted December 10, 2010 Report Share Posted December 10, 2010 Yea I was thinking I could get the fans off and 05 2500HD. No HD came with efans. If you do get the stock harness, it is easier to just take your stock one out and replace it with the new one. about 30min of work versus seperating the efan circui out of it. and figuring out how to route it. Quote Link to comment Share on other sites More sharing options...
misterp Posted December 10, 2010 Report Share Posted December 10, 2010 ...If you do get the stock harness, it is easier to just take your stock one out and replace it with the new one. about 30min of work versus seperating the efan circui out of it. and figuring out how to route it. DUH a very good idea I would never have thought of!! Quote Link to comment Share on other sites More sharing options...
SuperStock Posted December 10, 2010 Author Report Share Posted December 10, 2010 Well i picked up the e-fans today $240, Where is a good place to get a factory harness. The fans came off an 05 1500. Quote Link to comment Share on other sites More sharing options...
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