The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Project Vitamin C-10

57truckguy · 02-03-2012, 02:29 AM

Alan , I just went to Napa an ask for a temp switch that turned on at 190, Real cheap and easy.

I figured that I wouldn't need the compressor switch since anytime the engine gets to 190 the fan would come on anyway.. Some add an additonal fan to come on when the ac compressor is on for the extra insurance to keep the engine cool during slow( parades,etc,) driving. May be needed may not. depends on how good your cooling system is setup.

I acually used the triary switch setup, a little more complated but a safer system for the ac..

If I had it to do over I would probably go with the binary system to give some protection to the compressor and keep the wiring simplar.

02-03-2012, 02:29 AM	#3900
57truckguy Registered User Join Date: Sep 2011 Location: Indianapolis, Indiana Posts: 261	Re: Project Vitamin C-10 Alan , I just went to Napa an ask for a temp switch that turned on at 190, Real cheap and easy. I figured that I wouldn't need the compressor switch since anytime the engine gets to 190 the fan would come on anyway.. Some add an additonal fan to come on when the ac compressor is on for the extra insurance to keep the engine cool during slow( parades,etc,) driving. May be needed may not. depends on how good your cooling system is setup. I acually used the triary switch setup, a little more complated but a safer system for the ac.. If I had it to do over I would probably go with the binary system to give some protection to the compressor and keep the wiring simplar.