Temp. Gauge

After I have been driving my 1990 LS teg for a while the Temp. guage starts to drop ALOT. It almost says my car is completely cold but then when i stop for like 30 seconds the needle goes back up to where it should be.

Please help
Scott

I had the same problem… but i didnt do anything it just fixed it’s self :ghetto: you might need too add some radiator fluid

Temp gauge,bouncing idle

Originally posted by 93IntegraLs
I had the same problem… but i didnt do anything it just fixed it’s self :ghetto: you might need too add some radiator fluid