A few weeks ago i posted that i was leaking anti-freeze. Then i replaced the heater control valve. Then a few days later, my car started to overheat, spewing coolant and boiling water out of the rad cap. I brought into shop they replaces rad hoses, and heater control core. Now a few weeks later once again im having problems. I was leaving my friends house when all of a sudden i had like no acceleration. I looked down at my speed and rpm and noticed the temp. It was all the way to the right, way past 260. The fan was on, the water was bubbling and boiling in the reserve, but nothing spilt out. I went home let it cool off more, emptied reserve and put new coolant in. The rad is full, the tank is upto proper spot, yet still the car after a few mins of driving is getting past the 260 mark. SO once again I popped the hood, and looked around. felt the rad cap (cool), felt the reserve (cool), felt rad (cool), felt top of engine (cool), felt the hose goin from rad to engine (VERY VERY VERY HOT), touched bottom of engine (was a redish color...VERY VERY VERY VERY VERY HOT!!).

My only guess is that the thermostat is off and is not allowing the coolant to go into the engine or whatnot?

I am goin to the shop tommorrow early to have them look at it, what do you all think?

3.1 rs 91 Camaro

 

Based on youe symtoms it is not the thermostat. if the water is boiling out of the rad, that means water is circulating through out the system. the problem is heat transfer. check to see if the airdam is in place, or if the fans are spinning all the time. if the air dam is gone, the car will overhat in minutes while driving. does the car overheat at idle?

 

For it to get that hot that fast, I'd check the water pump.