I'm bumping this thread cause I have relevant Troubleshooting question

I have a 300TE. Fan froze up.

Replaced Fan, wouldn't run.

Put 12v on FAN, Fan worked.

Hooked Fan back up don't work.

Pulled wires off the Temp switch on the head and fan switched on.

Does this mean that switch is bad?

I had the car out and it got hot enough the head switch should have switched it on. I checked this by letting the car get well warmed up, took it to get gas where I know the head temps will rise while it's sitting. Started it up, temp showed pretty warm, fan no run.

The AC running does not switch it on.

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<<Les Garten>> 1988 300TE 280,000 Miles