Installing 06 Chevy E-fans on a 01 Chevy
#21
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.
#22
TECH Fanatic
iTrader: (8)
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.
#26
Custm2500's Rude Friend
iTrader: (17)
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???
#30
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