Quote:
Originally Posted by ps2cho
Pulled the two connectors with Key ON to ignition and fuel pumps energized....Nothing happened. I checked that resistor and I don't see any corrosion on the leads.
Is the relay one of the metal square boxes under the fuse box? I wonder if I can switch the one from my 88 300TE as I know that functions right as a test?
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The relays should be interchangeable. If you pulled the 2-pole connector off the temp sensor (the farthest right one in the earlier photo) with key all the way on, engine off and the fan did not spin, there is a problem in the circuit somewhere. Have you tried bridging the pigtails coming off the drier pressure switch? That gives you low fan (KOEO), and would be a test of fan function. Other components to test: 2 fuses. I think they are 7 and D, one is for the coil side of the relay (labeled C in the attached photo) and one is for the load side. Then there's the relay itself, the ceramic step resistor in Ivanerrol's photo, and the wiring from there to the fan motor.
