I was working on my truck this weekend and I broke the banjo loose on the injection pump. When I was pumping the primer it started to leak a little bit. Needless to say I got a little worried. It does not leak any while it is running. Is this a big problem and do I have to replace the lift pump to fix it. I have only used the primer twice since I have owned the truck. Could the fuel system be getting air in it because of this. <br>Thanks,<br>Justin

 

See the post &quot;no start this morning 1996 12v&quot;. While you truck is running, this post deals with the same problem of a leaking primer button/valve. The person who posted the topic was able to replace the o-rings that seal the primer button.<br><br>I would think that if it leaks while plunging (applying pressure), then it would leak under suction (or suck air). You won't see it leak during operation because it's &quot;sucking&quot; (for lack of a better term). <br><br>You could probably ask him what size the o-ring are, and if there are any tricks to changing them. Good luck, Kevin D.