Overheating...was it radiator sealer?

[crazypete]

Well, now I got even bigger crazy overheating problems......says the temp guage. My instinct says different. The needle now rides above the 'n', right next to the red even off the highway and especially on it ...... but the car doesnt act like a car thats overheating. No backfires or detonation, smooth idle and the hood didnt feel super hot, just...normal hot. I passed my hand over the engine afterward and I just didnt get the sensation that it was red-hot, just regular hot.

I have 50/50 mix and the radiator is back to the configuration it was before when it had no heat problems: 1 trans cooler tucked near the bottom (trans is 150 degrees exact and the shifting is good. Takes a while to get to operating temp though). I think the thermostat is toast. Must be. Its the only component I havent tinkered with. The radiator, by the way...is one of the cleanest used I have seen. I looked down the filler cap and it didnt have a touch of that white crap on it anywhere. Maybe the sealer clogged some of the passages but that is all I can think of. It's the thermostat tommorrow then I am off to get a new radiator, I guess.