cooling fan

[C5GTO]

Originally Posted by ironhead

David, I have a GM style 140 amp alt. On the way. I will run a 6 ga. Wire from the alt. to the bat. side of the solenoid, then to a 40 amp relay, toggle switch, then fan. I would still prefer to have the fan come on auto.with temp since I once forgot to turn it on, if I can find a keyed source for power. Maybe my problem is just alt.and wire to solenoid From what you told me about your car, my fan might be my problem, one thing at a time. Like they say, you can't fix stupid,

Chuck,
Did you get the new alt and wiring installed? If so, how's it working for you?

[ironhead]

Yes, Joel I ran 6 ga. wire from the 140 amp alt. to the solenoid bat. terminal, then to a 40 amp relay . Frm the relay to the fan, which is controled by thermostat. The relay is powered by 12 ga. wire from the original fan power source, if all that makes sense. It does work well, with voltage being 13-14 regardless of rpm. Thanks to everyone for your input