05 Stock EFans
#6
TECH Junkie
iTrader: (9)
I have had mine about a month and I have not hooked up the high relay yet. I have not needed it. My truck runs cooler with the 34" radiator and 05 fans than it ran stock !? I didn't even change the thermastat. I am considering putting the pcm switched wire to a toggle and running the high side that way. Btw, its been 99* here some days.
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#8
TECH Junkie
iTrader: (9)
Originally Posted by JustDoIt
So they have a low and high setting?
Ac on = low
pcm up to temperature= low
pcm detects high temp/and a/c on = high.
I think thats the way it works, like I said mine are only wired to the a/c right now and they cool plenty and don't draw much amps.
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ullose272
GMT 800 & Older GM General Discussion
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07-19-2015 04:14 PM