overheat

Hey I have an 85 v6 firebird that runs hot and occasionally overheats to the point that the water in the plastic reservoir boils. Radiator and water pump are fairly new, no flow blockage, fan is on a toggle switch. Currently have no thermostat in the car. I've been told that not having the...

I have a 2000 Sunfire (2.2L). There was nothing wrong with this car until I decided to drive it after it had been sitting for a month in the hot weather. It overheated. I added water that day to the reservoir (as there was no radiator inlet that I could see) and it has continued to overheat...

I was driving the Fiero and I gave it a good amount of gas while heading down the road, probably pushing it pretty hard but not more than I've done before. I slow down and quite a few seconds go by. Suddenly, smoke is coming out of my vents, although the temp gauge reads normal. I find a safe...