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Radiator Fan Configuration Change

diambo4life

Well-known member
Joined
Jul 7, 2013
Messages
315
Location
Edmond, Oklahoma
Hi, I am wondering whether anyone here has wired their radiator fan to be "always on" with the car running and how you accomplished this? I have a very unreliable trigger for the fan (stock setup) and I just want to rewire the fan to this spec so I do not have to worry about whether it's on or not. The car has a SPAL fan with AFCO radiator setup. No issues whatsoever running hot unless the fan doesn't turn on when it's supposed to. /ubbthreads/images/graemlins/hsugh.gif
 

thomcasey

Well-known member
Joined
Sep 24, 2014
Messages
907
Location
Indianapolis, IN
Just use a standard relay to trigger the power from a key-on connection. VFAQ.com has it on the DSM site, under Electrical.
 

brisvr4

Well-known member
Joined
Feb 13, 2004
Messages
955
Location
brisbane australia
I recall that there is a wire running to a temp sensor on the rear of the thermostat housing that will turn the fans on permanently if you ground it?
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
Quoting brisvr4:
I recall that there is a wire running to a temp sensor on the rear of the thermostat housing that will turn the fans on permanently if you ground it?



Yup. You can intercept either the regular fan wire or the AC fan wire (which kicks on both fans). Both turn on the fan if pulled to ground. This is how the fans are controlled via ECMlink if you use it.
 

brisvr4

Well-known member
Joined
Feb 13, 2004
Messages
955
Location
brisbane australia
Mark, the fact that we both knew that proves just how old we both are now!
 
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