2000 Saab 9-3 repair Question temperature guage on dashboard

2000 SAAB 9-3
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WESTERN8
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Electrical problem
2000 Saab 9-3 repair Question Manual 118000 miles

After being on a 30 mile drive today I noticed the temperature guage on my saab 93 w reg 2000 model had not moved from cold all the way home, later I used the car again and the temperature went to normal (half way) but on returning to drive home it slowly started to go back to cold, everything else seems to be ok, could someone give me an idea of what this might be please, I would mucha ppreciate it.
Many thanks
Joanne
Feb 7, 2010 at 11:06 AM
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MNTHNY4
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u need to replace your engine coolant temp sensor ,if u check also when gauge is down ,that your a/c does not cool ,so get that replaced & u r good to go .
Feb 8, 2010 at 7:49 AM