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Registered
Join Date: Jul 2004
Location: Upstate New York
Posts: 3,335
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1) Two fans, both electric.
3) Fans turned on and off by inputs to relay from air conditioning and thermoswitch on radiator.
4) Black box... but expect to find transistors, resistors, capacitors, wire.
5) Fan relays fail. Thermoswitches fail.
6) I doubt that high NOX is due to hot radiator. Of course, here in Upstate NY, we don't have emissions testing for cars, so we don't care about NOX or CO, for that matter.
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Good luck, George Beuselinck
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