have you bled the air out of the system?

did you do a pressurized flush or just use that flush additive?

new t-stat?

 

It was the fan clutch. Finally got around to installing the new one. I got stuck at a road work traffic jam for about 20 minutes, AC got a little less cold, but not warm like it had been doing, and the temp gauge stayed below the 210 mark.

 

Water pump or clogged rad? I'm just throwing out things that haven't been said.