Date: Sat, 6 Mar 2004 09:22:35 -0500 From: "Fred W." <Fred.Willsnospampam myrealbox.com> Subject: Re: '94 900 overheating
"saabturbo" <saabturbonospampam.z> wrote in message news:104ib1dc68v4m06nospam.supernews.com... > My experience with overheating has usually ended up being one of two things. > > 1. Fans not running due to faulty fan or the temp sensor on the radiator; > or > > 2. If the fans run when activated by the appropriate temp then it is the > radiator. I would go there before the water pump any day of the week. Over > time the radiator gets clogged and it just can't flow water through the > channels as well as it used to, which means less water to cooling air > contact. It is first noticeable at idle, but in time it is noticeable as > running hot in slow moving traffic. Then progressively worse until the day > it overheats and you've got a blown head gasket. The thermostat is far more common than a plugged up radiator *unless* the car was run with the wrong type of coolant. If you have been running the green stuff (or worse, straight water) then I would say #2 above is right on the money. The electric fan problem has the very unique symptom of running perectly when the car is moving along briskly (>30mph) but overheating in slow or stopped traffic. -Fred W
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