Installing 06 Chevy E-fans on a 01 Chevy
Oct 30, 2011 | 09:40 PM
#21
Teching In
Joined: Feb 2011
Posts: 1
Likes: 0
Scootyboy, this is an awesome post! Did this setup cool your Suburban well? I have the blacbear harness Im putting on my 'O2 2500HD 6.0L. I was told by the guy doing my tune that I need to figure out how to get my fans to kick on high instead of low when both fans come on. First of all is this necessary? I don't know why blackbear would make a harness that wont turn the fans on correctly. They get a lot of good reviews so I dont see the prob. If its necessary what do I need to do to the harness to fix the issue? His suggestion is making me hold up on the install until I have a good resolution. Thanks for any help and again great post.
Nov 10, 2011 | 06:36 PM
#22
Scootyboy, this is an awesome post! Did this setup cool your Suburban well? I have the blacbear harness Im putting on my 'O2 2500HD 6.0L. I was told by the guy doing my tune that I need to figure out how to get my fans to kick on high instead of low when both fans come on. First of all is this necessary? I don't know why blackbear would make a harness that wont turn the fans on correctly. They get a lot of good reviews so I dont see the prob. If its necessary what do I need to do to the harness to fix the issue? His suggestion is making me hold up on the install until I have a good resolution. Thanks for any help and again great post.
Nov 10, 2011 | 06:46 PM
#23
I believe the factory harness triggers both fans at the same time but changes speeds from low to high. And the aftermarket harnesses trigger one fan on high and then trigger the second fan on high speed if necessary.
Nov 23, 2011 | 08:53 PM
#26
Now the low speed fan trigger needs to be connected to the PCM.
And one more thing, if your truck has the 105 amp alternator, I strongly suggest that you upgrade to the 130 amp or 145 amp version. I have the 130 amp one in mine, and I am noticing my volts guage drop from 14 down to 12 or 13 when both fans are on and I am idling. The volts will increase if I rev the engine though. I am planning on upgrading my alternator when I get more funds. I have since upgraded he stock alternator wire. Got rid of the stock 8 guage wire and installed a 2 guage wire, which does help with the voltage drop some.
And one more thing, if your truck has the 105 amp alternator, I strongly suggest that you upgrade to the 130 amp or 145 amp version. I have the 130 amp one in mine, and I am noticing my volts guage drop from 14 down to 12 or 13 when both fans are on and I am idling. The volts will increase if I rev the engine though. I am planning on upgrading my alternator when I get more funds. I have since upgraded he stock alternator wire. Got rid of the stock 8 guage wire and installed a 2 guage wire, which does help with the voltage drop some.
I didn't see it mentioned Which Relay did you use???
Did You ever do the wire up grade with the 130 Amp ALT and did it Help???
Jan 11, 2012 | 09:54 AM
#29
Feb 11, 2012 | 12:31 AM
#30
Staging Lane
Joined: Nov 2011
Posts: 50
Likes: 0
this is exactly what i was looking for... awesome write up and thanks for the info...maybe im just an idiot but i heard that you had to get the computer programmed to trigger the fans...i have a 2002 and can get my hands on a few different scan tools and if it does have to be programmed id like to know if i would have to send it out or if i could do it with a scan tool