Cooling Fan On during highway drive '97 9K Areo - Saab 9000 Bulletin Board - Saabnet.com
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Cooling Fan On during highway drive '97 9K Areo
Posted by John P (more from John P) on Fri, 21 Dec 2012 05:26:52
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This is a wierd one. I notice on my way to work that the coolant temp is really low (below the min line) and the heat seems cool. Stop the car in the parking lot and pop the hood before I turne the engine off. Sure enough the radiator fan is on and the air coming out of it is cool. Must've been on for a while. The engine doesn't feel particularly warm. I know that the ECU turns the fan on/off on that car - no temp switch in the rad. I think it just responds to the temp sensor in the head. If that true then it must be the fan sensor? Are there relays that could be stuck closed? The fan shut off shortly after I turned the engine off. Would that tell me that the relays are ok?
Thanks
JP
'91 9K "S"
'90 9KCDT - gone
'97 9K Areo - 232k mi and still going strong
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