A/C and Aux. fan question?

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A/C and Aux. fan question?

06-13-2005, 02:20 PM

SD Blue

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Join Date: Jun 2004

Location: West of Ft. Worth. TX

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A/C and Aux. fan question?

OK, it is just getting too hot here to not have a properly operating air-conditioning system.

I have the original R12 refrigerant and here is my question: In 90*+ heat shouldn't the aux. fan, due to the reciever/dryer pressure switch, be on nearly all the time?

Mine only seems to come on when the coolant temp. reaches the 100*+ mark. Only then do I get cool air. I am trying to see if there may be a problem with the aux. fan relay, or wiring, before tracking down a set of guages.

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Sam

84 300SD 350K+ miles ( Blue Belle )

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