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Old 03-22-2004, 12:39 AM   #1
Scooby Newbie
Member#: 57813
Join Date: Mar 2004
Location: Virgina
1999 Legacy SUS

Default Temp guage 99 sus

I have a 99 sus, i love the car but dont know much about the model as far has performace highlights, or why the car is special(30th aniv edit). I did a search and found nothing, im inquiring about some specs, and if there is an issue with the temp guages on this model. The guage will go to 3/4 below hot, coast down to level(middle) at acceleration, or idel, and dip to 1/4 above cold. What i am saying is the guage is doing its own thing , and i dont know if it is an overe heating issue or guage problem. I have 107,818 miles on the car. Any insight would be appreciated, on specs and this guage issue.

Thank You
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Old 03-23-2004, 05:20 PM   #2
Scooby Newbie
Member#: 30754
Join Date: Dec 2002
Chapter/Region: NESIC

I had an explorer that did that. Turned out it was a bad thermostat.

Also have an outback with overheating problems, but that's because it keeps blowing headgaskets.
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Old 03-24-2004, 03:14 PM   #3
Scooby Specialist
Member#: 4242
Join Date: Feb 2001
Chapter/Region: MWSOC
Location: Aurora, IL
gimme Legacy TPH wagon!


Not more than a month ago, I was experiencing a wildly fluctuating temp gauge, however it was in conjunction with the widely-known (on this board) leaky head gasket issue. Prior to this, I had replaced a failed thermostat that cause overheating.

With respect to the head gasket issue, my engine was displacing a good amount of coolant. After topping off the radiator and driving until the engine reached operating temperature, I would notice an unusual amount of coolant in the overflow reservoir along with oil. However, after the engine cooled, the overflow tank did not empty. This was likely due to air that had entered the cooling system from a leaky gasket.

I would recommend keeping a close eye on your coolant level. If you notice anything strange in how it's functioning, it might be time to take it in to get checked out. Better yet, if you know someone on the board who does engine work, you might save quite a bit on labor costs.

View the leaky head gasket thread here (in case you haven't seen it yet)...

driven by guts inside!
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