2003 Yukon Where Is My Coolant Going?!?!?

[PJS3]

But a stupid way to lose it, the luck of the draw. If you didn't get one that they built with the bad heads you would still be rolling.

And I believe that. That's why I'm looking for another Kon or Hoe now. If I don't trade it in I'll maybe make it a project.

 

[PJS3]

For the record.... I decided to try this product called "K-Seal" off the advice of a commenter on this youtube vid...

What do I have to lose?
It has been a solid week now. No more disappearing coolant. Truck is running fine. Temp is fine. Time will tell...