This is irritating me and I can't figure it out, especially in the cold weather in Colorado Springs. I was driving down the highway, saw that it overheated, pulled over, checked the coolant, it barfed it out the radiator, I put more in, continued, made it home overheated, it barfed coolant out - I said fine, must be something wrong with the thermostat again, I took it out, tested it, it opened easily, I put it back in. Opened the air bleed valve and only air comes out. See this video for what's going on:
I can't figure out how to fix this if it keeps dumping coolant out the radiator even when it's not overheated according to the gauge cluster. Also yeah, high RPMs, earlier it had a surge for a little bit but then evened out.