I was driving to school this morning and all was normal. but when I got to school, I noticed I wasn't getting any hot air anymore, and the temp gauge had gone up a tad. so, praying to the gods, I go to class hoping that nothing is wrong. so now I'm heading home again and I get heat, but then when I am stopped at lights, it starts to cool, and the gauge goes up a bit. It's wierd because, whenever the car is at a low rpm, the air gets cooler, but when I give it some gas, I get heat again.
The gauge is usually a little over half. this time it was right around 3/4. so I get out and check for a coolant leak, and nothing. so I loosen the cap on the overflow tank, and coolant bubbles into the tank, but is quite a bit under the minimum mark.
I just got the waterpump housing replaced a month ago, so I don't think anything is wrong down there again.
so, do you guys think that I'm just a little low on coolant and should just top it off?
help me please! and quick! Thanks