Howdy, I'm David. I've got a 79 Cherokee Golden Eagle, and I'm trying to identify three things.
First: There are two tiny metal tubes coming up in the rear left side of my engine along the firewall. What are those? (See picture 1)
Second: Also on the rear left side of my engine near those little tubes, just at the base of what looks like a heater core coolant tube are these two little vacuum ports...almost looks like it might be a CTO. (Two black hoses are plugged into them; See picture 2)
Third: Last question: I seem to have no CTO on my thermostat housing, and a double CTO (three port) on the left front side. According to diagrams, only the California model should have a double CTO on the front left (mine is from Oregon, and doesn't have a VSD valve; so maybe it's not a Cal model?), and all should have some sort of CTO on the front right.
Any idea what's going on, here?