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· Opeler
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1,768 Posts
after off cooling?

My GT came to me with an electric fan (to suppliment the 7 blade normal fan) installed as a pusher in front of the radiator. Has a sensor actually in the upper rad hose. Dial type control but knob is gone. Saw a thread here a week ago which had the same model but can't find it back.
Anyway, it doesn't come on when the car is running ever but has after I shut it down. Does it do the car any good to have the rad get air blown over it after she's shut off? Having cooler coolant in the rad not moving through the system can't carry heat away from where it matters so why bother? I can't really see the point and I didn't know how long it would run so I turned the dial all the way over and shut it down because I didn't want it to run down my battery.
 

· Opeler
Joined
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1,768 Posts
Yes, mine seems to stay pretty cool. Very hot here yesterday upper 80's and down highway, through town temp got close to half. It could be the fan kicks in and I never know it, it is quiet but up until a few days ago after I jiggled it's wires, it had never come on, so there must be a bad connection in the mix. I might hook the switch on the dash back up but I don't understand the point of that switch. If it is set (by dial on sensor) to come on when hot enough why have a switch? It seems the switch can over ride the sensor (if hooked up that way, not sure why you'd want to do that) or simply disable it (again, why?). Maybe you could turn it on from the dash despite the sensor saying it isn't warm enough to need it (again, why?) but I don't think it's intended to do that. There is also a little red led light right above the switch, has it's own wires. Not sure what that's for. From their website:
Part# 31148-Aux. Illum. Switch
For cockpit control or override of fan function. May be wired to actuate fan regardless of temp setting (end of a heat, or at the beginning of a hard pull), or -wired alternately - can be made to disable fan function, regardless of temp setting (for water crossings, etc.)

I don't know what thermostat is in there but it's yet another case of "if it ain't broke don't fix it" syndrome. I'm just too inclined to mess with stuff. Makes me wonder if I could get away without the engine fan (highly unlikely and dangerous to try) and get a couple HP. I also have a coolant overflow.

Have to assume the PO put in on for a reason, but well, PO assumptions are very treacherous.
 
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