Engine/Transmission (1998.5 - 2002) Fuel Leak

[JesseJ]

OKay i'm horrible with computers obviously. Got a question and need some answers from someone who's done this before. I have fuel leaking from where #2 injection line screws into the head. I have checked, the nut is tight, still leaks. Didn't want to crank on it any more for risk of breaking it worse. I want to play it safe and replace the injection line and conector tube to eliminate all possibility of leaking. My question is, what will it take to replace the connector tube? Do I have to pull the injector or rocker arms? Any insight on this or specific instructions of how to do it correctly would be great.

 

[MACHINEST]

You will not have to pull the injector to replace the conector tube,the line is big bucks,you can loosen the injector line and retighten it,it may stop leaking,in the 1998. 5 motors all the injector tubes had to be replaced when installing injectors,be carefull very high pressure there.....

 

[rkressg]

Just loosten the line (you will have to loosten/remove some of the line supports) and get a small flat blade screwdriver. Hook the screw driver on the threads at the back of the fuel tube and pry it out, it will pop right out. You can get a new fuel tube, they are not all that expensive (around $20 per tube, I think Piers sells a set for a better price).



There is a better design of fuel tubes starting in '99 (at least reusable tubes). You might want to get a new set of tubes. Just DO NOT bend the fuel lines and DO NOT check for leaks with your hands.

-Rich

 

[rweis]

Use cardboard, poster board, mechanics mirror, to check for high pressure fuel leaks.



Bob Weis

 

[JesseJ]

RKRESSG- So do you think I should replace all 6 tubes? I could while I'm at it. But I'm thinking of getting bigger injectors in the near future so maybe I could just do the one now and the rest later? Also, I priced out all the parts I would need to replace the line, tube, and all neccessary seals, even if I had to pull the injector and it came to about $75 after tax. The line is only like $50 and I figure it's cheap insurance. Also, it doesn't leak at idle, but when you bring the rpms up it seeps pretty good. I am relieved I won't have to pull and injector. Should I pop off the valve cover to make sure everything gets seated properly when I put the tube back in?

 

[rkressg]

You can if you want. On your model, they only need replaced if they are removed. If they have not been removed then no, but I would suggest changing them.



If you have removed them to change the injectors (or just removed them for any reason), that model of tube must be replaced. The new ones that you purchase will be the newer design and can be removed and reinstalled to your hearts content.



You could also have a bad fuel line. They can be purchased individually. Just so you know, even though you can not see a crack, there is approximately 16,000psi of fuel pressure in those lines and even a small, non-visible, crack can leak.



If you need any information about changing those tubes, please ask.

-Rich