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Cooling (Aux.) fan operation 91-780 700 1991

posted by  dm960 on  Mon Jul 13 16:43 CST 2009
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last visit: Fri Oct 24 06:41 CST 2014
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3rd attempt at getting A/C working has held for 3 days. Every component to the firewall (evap)has been replaced. I'm pretty sure the Aux. fan should be coming on with A/C, right. Is it triggered by the ECU? And where is the relay for the fan? I don't have any schematics for this car & could use a little help. Gets down to upper 30's cruising, but really need the fan spinning at idle. Have jumped the fan at the connector & it works. Have only had this 780 a little over a month & have been getting very familiar with it. Cleaning grounds & connectors as I come across them. It was a Chicago car & some connections have corrosion.

Thanks for the help, Dave






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New Cooling (Aux.) fan operation 91-780 [700][1991]
posted by  dm960  on Mon Jul 13 16:43 CST 2009 >


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