174k. New filter-all that has been changed. I even have a boat primer bulb in line so I can squeeze fuel into it. It's getting fuel to the injector pump as you can see mini bubbles flowing. Had an 87 300SDL and also currently have a 98 300D so I have sorta been thru this with both of those but changing the plastic tubes fixed it.
I am trying not to lead suggestions down this path but I think it is the injector pump but do not know why it would just suddenly quit working.