Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2005 Honda Element – mystery air in engine cooling system › 2005 Honda Element – mystery air in engine cooling system
The T stat is inside a closed loop.
Unless there is a crack in the housing that should cause an issue.
The only other situation in which air bubbles can occur is due to cavitation.
But if this was an issue due to design, there would be many more reports of it happening.