Date: Fri, 04 Jun 2004 23:09:10 +0100 From: Johannes H Andersen <johsnospamfitter_spam_gets_fried_don't_tryit.com> Subject: Re: saab 9000 se Cooling Fan only runs Hi Speed
Stevie_mac wrote: > > Any one know where I can a schematic to help me suss out a problem with a Saab 9000. > > I have replaced the 3-wire radiator fan switch but still no Low Speed operation. > > If I short the blue wire on the Fan Switch to ground, the fan runs low speed as expected. Could this be a dodgy fan > switch? Yep that one I know, age old problem - mine as well...twice... You can either buy & fit a new resistor pack part ~£50 or try to repair it. This time I'll repair it, the resistors in the pack looks fine, so I think it's the high current diode in the pack. Somewhat tricky to repair since it's a hot component, so soldering may not be appropriate. Other makes of cars suffer the same problem, the resistors in the resistor pack are of insufficient wattage and must therefore be cooled in the blower housing.
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