Replace the thermostat. Even if it might not have failed, you'll never know if it does or not because there's no CEL or error code produced from it. Check all hoses for dryness, cracking, rips etc. And keep an eye on the water pump if you haven't changed it yet
Originally Posted by The HACK
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.