Date: Sat, 28 Jul 2007 14:17:05 +0100
From: Andrew Sinclair <news11nospamlycat.org>
Subject: Re: Temperature gauge
In message <6pqqi.13231$gX5.5553nospamfe2-win.ntli.net>, John Bain
<john.bain4nospamorld.com> writes
>Hi, I'd appreciate any advice on the following problem which has recently
>come up on my 1998 9-5 saloon SE eco-urbo 2.3ltr. 91k miles.
>After only a few minutes driving the temperature gauge steadily rises to
>just over
>half-way whereupon the radiator fan kicks in. The temperature gauge then
>rises or falls
>slightly (to about three-quarters max, never goes into the red) but never
>dips below half-way. After parking the fan continues for 5 - 10 minutes
>before stopping by itself, with the ignition key out or in, makes no
>difference. This happens daily now on even only a five minute journey.
>The car has never behaved in this way before (had it for 5 years now) and
>normally drives
>with the temperature gauge holding steady at just over one-third of the way
>up. Even motorway driving does not even take it fully up to half-way.
First thought is your thermostat needs replacing, less than 20 quid in
parts including new coolant. The temperature gauge on the 9-5 is
controlled by the ECU so if all is well with the car it should sit bang
on 9 o'clock and never deviate whatever you are doing, if the thermostat
is sticking part closed so coolant isn't properly circulating around the
radiator then the fan will kick in - don't worry about the fan running
after you shut the car down, it is supposed to do that to cool the
system down.
Andy
--
Andrew Sinclair http://www.smellycat.org