Reply to "Testing radiator fans"

jb1490Member

quote:
I did that previousely connecting the two wires together, but fan didn't run. Trying to eliminate the possibility the fan may be bad too. So, a test light connected between those 2 wires should light up if all the wireing is ok, right?

Maybe. It depends upon the resistance of the coil and the test light, as they would be connected in series. You should get a reading with your test light from one of those wires and ground, but not the other, and the ignition switch needs to be on.

With the ignition switch on, touch those two wires together and then release them. You (or the wife) should be able to hear the relay click. If the relay doesn't click, then there is either a wiring problem, or the relay is bad.

quote:
I suppose I just hook a wire to the + battery terminal and then touch to the back of the fan wire in?

Yes.

John

10/15/139:58 AM

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