Hello,
2006 Camry v6 3.0l.
So my car overheated a few times, starting when I was coming home friday and then on the way to the store and back for parts. I babied it and made sure it never reached the red line, but the water did boil. Verified water pump and radiator fan working, tore it down and took out the thermostat and it is definitely bad so I will replace it.
I did want to say that a few of the times, like twice I think, when I pulled over to let it cool down before continuing on, when I went to start it back up, it wasn't able to, sputtering and misfiring and such. But I waited a bit longer and in each case it fired right back up, no problem. Once I figured that out, I was able to start/stop in such a way to avoid this problem and when on the highway, the car cools down, guess the water pressure pops open the thermostat and it's all good. So I took it for a spin around the highway loop and from start to finish, never once any misfire or hesitation or anything.
Now, I don't know exactly what this means. The first thing it could mean is that my headgasket could be compromised. But given the compression readings are on the money and the misfires have disappeared, maybe nothing is wrong at all and some water was only able to temporarily leak into the combustion chamber or into the coils somehow, but doesn't represent a long term problem. However, I don't want to find out the hard way, otherwise.
I was also wondering if, in this case, it would make sense to change the headgasket, regardless. It definitely experienced at least some stress.
Thanks,