Cooling Fan Re-Dux

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Dec 4, 2005
The fan on my 88 62 does not work. I have searched the threads for help, and have run all the checks per the FSM.

Though the diagram is different than what I found on my truck, everything seems to check out: power supply, resistance, manifold temp sensor, blower motor and blower motor relay all seem to work.

The only thing left it COULD be would be the big black relay under the drivers side kick panel.

Has anyone replaced this? It's a bit pricey, not even sure how to test it: FSM has no test for it. This stupid blower is making me crazy. Any suggestions?

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