Buddy has a 2000 ETH and he has a leak around the threads from one of the injector lines at the head. He tried to tighten it but still a leak. Could the tube be leaking on the backside ? He is worried that it might be leaking in the head. He pulled the valve cover and pulled the injector and everything looked fine. But there is still a leak. Any thoughts?
Chase

 

i had the same thing line #5 , i changed it out also the oring on the injector tube buy it from cummins for half the price