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91 240 A/C auxiliary fan wiring 200

posted by  instantcrow on  Sun Jun 15 05:02 CST 2008
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last visit: Thu Nov 27 05:55 CST 2008
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My 91 244 has a/c that works wonderfully. However, my engine temp started to rise in 95F weather in manhattan traffic with a/c on. I suspect the auxiliary fan as my coolant system is perfect (recent flush, new water pump, new thermostat, etc.)

I'm trying to test out the aux fan wiring, but I have found various descriptions of the system...seems volvo changed it between '90 to '93. The board seems to have a lot of info for 700's and 93 240's. What was up in '91? How do I test out my fan on a 91?

I ran the ac today while parked with temp about 80f...fan didn't kick on. I also jumped the pressure switch on condenser line near the passenger side rail (near oil filter and alternator)...no fan running.

Any descriptions of electrical circuitry would be much appreciated. I am very handy with electrical systems...just need to know the diagram.

Thanks as always.






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