Date: Thu, 4 Mar 2004 23:05:36 -0500 From: "Fred W." <Fred.Willsnospampam myrealbox.com> Subject: Re: '94 900 overheating
"itten" <ittennospamast.net> wrote in message news:040320042015057394%ittennospamast.net... > The car does not overheat at highway speeds, only when I'm stuck in > heavy traffic do I see the gauge move to the hot side, yet not all the > way hot yet. The coolant level remains where I left it: full. I did > notice a squeeling noise when the car was first started in cold > weather. The noise went away after 20 seconds or so and did not > re-appear again once I got moving. Ok, sorry. That was not clear. In that case, if the engine runs cool enough when moving, but gets hot when at a standstill, it may be the fan, but probably not the fan motor itself. Most of the time, this kind of problem is caused by the temperature sensor/switch which is located in the radiator. Not sure about the 900's, but the 9000's of the same vintage had temp switches which turn the fan on too late (at too high of a temperature) which results in the symptom that you describe. If yours is a severe case, it may be that the sensor never turns on the fan (though you said you heard it run, which would indicate otherwise) Some configurations from around that time period used a dual temperature switch / fan configuration. It may be worth investigating to see if maybe you fan works at high temp/speed, but not the lower temp/speed. There are lower temp switches available which are generally considered a good upgrade. -Fred W
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