OK here goes, the electric stock fan is not coming on at 190 deg as it is supposed to. I did a search and found most just throw in a switch at the dash but I'm trying to get it to work off the radiator thermo-switch. It won't come on with the a/c on either because of a low freon charge. This is what i've done. I took the rad switch out and tested it for continuity in a pot of water on the stove and it works at around 190 deg. I took a jumper wire and jumped the connector that plugs into the rad switch and the fan runs so that tells me that the fan, the relay and everything else is working except the switch! I even went thru the closed rad cooling system bleeding thinking there was air in the rad but that didn't work either. Soooo, My temp gauge was up to 230 deg (it runs cool but I blocked the rad so it would run hot) so it should of come on, at least you would think or ????? Any ideas anyone? I got the truck painted so I've got to get another pic on here. Just put a new fuel tank in and replaced the rear drive shaft u joints with HD off road ones too! TIA
Frank