I noticed my #7 injector line weeping when I drive and idle. I can't tell if the injector line is bad or the injector flare receiver is bad. How can I tell? I don't see any cracks in the injector line, but I do notice that some of the threads on my injector are missing (not stripped, but more like they were chizzeled off_). I don't think the threads have anything to do with the sealing of the injector line flare, but I thought I would ask you all to see what you would suggest.

 

Wipe area clean, run engine, recheck for leaks with clean paper towel.


Slow and steady wins the race.

 

If you have a spare injector, or line, swap one or the other.
If it still leaks, its the other side of the connection...

If you don't have a spare of either, you could try swapping the injector with a different one and see what leaks.