on the 123 its only ran off a temp switch on the drier(not a pressure
switch) and doenst have a thing to do with engine temp.
Peter Frederick wrote:
Temperature switch on the thermostat housing (pull the wire off and
ground it, fan must come on) and pressure or temperature switch on the
AC receiver/dryer. That one should run fan on low speed, I think.
Check the resistor (if so equiped) for slow speed operation, they are
often corroded so the fan won't come on until the engine gets hot
(don't know what temp, though).
Make sure the fan comes on with high temp or pressure at the
receiver/dryer or you risk blowing a high pressure hose.
Peter
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