/diy/ - Do It Yourself

Half an idiot here.

I was about to change the oil and filter but this hose was flopping around in the way, one end unconnected, no idea when it came loose. What is it and where does it terminate? 2006 Jeep Liberty 3.7 btw

Also there's a very very slow leak of yellow fluid under the vehicle. It feels and looks just like coolant, not oily, but it isn't sweet at all, it's extremely bitter.