i have an'86 ford f-250 with a 6.9l diesel engine. One of the injectors is leaking fuel. I replaced the O rings in the injector and it still leaked. then i sort of jiggle one of the other ones and it started leaking too. Do i need to replace the whole injector?
Thanks

 

daw00l,
Welcome to FTE and the IDI diesel forum.

Where is the fuel leaking at?

Is the fuel line nut tight?

Or is the fuel leaking out down below the return line Tee?
If below the Tee, you need a new injector.

 

yes, it is leaking from below the tee, in between the plastic tee and the rest of the injector. The o rings i replaced were inside the tee, and they didn't help at all.