Temperature gauge acting up Options

[valerit1]

Suddenly, my coolant temp. gauge started fluctuating.
It always was rock solid at a little below midline,
regardless of 120F+ heat outside. Couple days ago,
it started fluctuatiung between normal and ~ 1/4 position.
It never went above normal - only below. My car has no modifications,
new termostat + coolant flush 3 months ago. No overheating problems ever.
It is 95 GT auto. Anyone had similar experience or ideas what it could be?

[Bigmeanbulldog55]

I have my coolent lines disconnected from my intake manifold. And I have a ram-air type scoop for air. When I go around 70 to 80 + mph on a cool night, my temp drops. Otherwise, I think you have a thermostat problem. They aren't expencive or hard to change, so might as well.