| Re: Yet another Cooling Question |
Subject: Re: Yet another Cooling Question by Churchkey on 2012/6/23 13:11:47 91 may have a "range" button same as the 90, no "gauges" buttom. (unsure about 91 dash) The analog gauges on my 90 read high. Suggest checking radiator in out temps with a digital hand held pyrometer to compare to the dash gauge. Or you can monitor the upper radiator hose. As soon as it gets hot when the thermostat opens see where the temp gauge is sitting. It will probably indicate 3/4 hot. Fans do not run when vehicle speed is 55+ mph. Main fan should cycle at 228* without the AC on. If memory serves the temp trigger switch for the main fan is located in the thermostat area. Will check later to verify. Switch in right head (exhaust manifold area)is for temp gauge. Main fan runs when AC is selected? It should. Coolant temps will actually be lower when the AC is in use. I use the AC mode to keep it cool in traffic. For summer operation: Suggest connecting the 2 fan relay ground wires together. Relays are grouped together, left side of fan shroud.I use male/female insulated spade connectors. Both fans run when AC is in operation or 228* engine temp is reached. Jumper wire is disconnected for cool weather operation. |
