Yes to both above posts by johnboneske. Thanks for picture. That's the valve. Will concentrate on looking more closely at that line. And will be trying to get a smoke generator. But should that green fitting have some looseness? I can rock it a bit on the valve body's shaft, whereas cannot move the white fitting. As I said that line looks newer than others in car - ID numbers are bright and shiny. Interestingly I see my car has the line over to engine routed differently than yours. So maybe there was some "repair" done by previous owner just before he sold it to me. Thinking out of the box; if I wrapped that line (its only about 20 inches) with tape would that work as a temp fix if there were a leak in that line?