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

E-fans Help! Staying on after ignition off

Old Feb 19, 2011 | 10:44 PM
  #21  
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Can I just splice both pins from the efan harness together into pin 42 and call it a day?
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Old Feb 19, 2011 | 10:48 PM
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Originally Posted by 1slow01Z71
Turn your ac on wide open and see if it comes on after 30 seconds or so. Both of my fans come on low together when idling and ac on normal, but if I kick it on max after 20-30 seconds it will pop them on high. There are quite a few ways the fan harness can be wired up. My harness is a 3 relay harness though and I think the pcm4less harness is a 2 relay which I belive controls the fans seperately.
Ok I guess mine sucks. It has 2 relays and seems to only kick them on high.
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Old Feb 19, 2011 | 11:04 PM
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Well at least you can drive until you can call PCMforless and get better instructions.
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Old Feb 20, 2011 | 02:14 AM
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ok they work now, fuse was blown
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Old Feb 20, 2011 | 02:22 AM
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LMAO! It happens. I chased down a wiring problem for 2 days on my boat and it was a fuse. It was mounted on the starter under a rubber cover. I just stumbled across it.

Glad you got it going!
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Old Feb 20, 2011 | 03:19 AM
  #26  
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I posted a video of the truck over in the Texas forum on LS1tech.
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