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Date: Sun, 14 Nov 2004 22:54:39 +0000
From: Colin Stamp <colinnospamp.plus.com>
Subject: Re: That old CHECK COOLANT FLUID message


On Sun, 14 Nov 2004 21:40:59 +0000, Colum Mylod <cmylodnospamammed.com> wrote: >Aero 9-5, 2002 vintage. This Check Coolant message appears very >occasionally, said fluid was indeed checked out to be ok. A search on >previous incidents of this has shown me the odd concerned message - in >particular several threads on something I'd rather avoid but have it >now if it's going to be fixable on warranty: head gasket. > >Is it possible the Saab pooter acts up or there's a duff intermittent >sensor? The message always pops up (if it's going to) at cold start, >never reappears if the ignition is turned off and on (this is not to >suppress it but a fact of the current lot of this car: short >journeys). > >Any info welcome.. Is the coolant level going down? If it is then, funnily enough, you have a coolant leak. The best way to find out if it's going past the head gasket is to drop in to a dealer and get the system pressure tested. (They didn't charge when I did that, but then they did get the ensuing head gasket job...) There's plenty of other places it might be leaking from though. If the coolant level is constant, then try putting some extra coolant in first. If that doesn't cure it, then you can find out whether it's the float switch in the reservoir that's the problem by using the car with the switch unplugged for a while (you may need to bridge the contacts in the plug, depending on which sense the switch works in). Cheers, Colin.

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