2011 v6 LLT, 135k...
I have noticed for a little while this little cap, which looks to run from the radiator to the back/bottom of the engine has been leaking green neon fluid.
Recently taking it out for a drive the AC no longer works at all... blender door opens/closes no issues... fans comes on full blast and both radiator fans come on but the vents only blow warm air when set to AC.
What is this, and why would it possibly be leaking?
