Ok, this isnt in my camaro, but the people at the s10 board suck so here is my problem.

it got to around -10 last night and I cant believe that this isnt at least partly responsible for the problems. The truck started reluctantly today and I left is idling to warm up for about 15 minutes. When i came back out to the truck, it was running pretty hot and the heat was blowing cold! I figured if I got it on on the road moving that I could bring the temp down but it just got hotter! my over flow bottle boiled over and I pulled over and let it cool down then i drove home. Heater core?

 

Sounds like the coolant froze up. Did you happen to check the upper and lower radiator hoses? Were they both warm?

 

I am pretty sure, you were right. I tried running it again this afternoon after it has warmed up a bit and it ran fine.

 

Best bet is to flush the whole system and make sure you have a solid 50/50 mix, sounds like you had a bit more water than coolant. If it gets cold again, which it will here around Chicago, you will end up with a cracked block.