Quick and dumb question

[04psd250]

I have my truck tore apart right now to replace a #6 injector and I've read everywhere that after you put it all back together to start it up that it takes forever to build pressure in the oil system and won't start immediately. I read somewhere that if you fill your oil up at the oil filter instead of the fill tube that it will start up almost immediately and you don't have to set there for 10 minutes cranking on it. I was just wondering if this were true or not? Dumb question I know but I was just curious as to the answer. Thank you in advance

[NYC F-350]

Well, yes, and no. If the work you are doing did not drain the HPOP reservoir (injector removal probably will not do that), filling the oil through the filter housing won't help.
If you had to remove the HPOP for whatever reason, yes, filling the oil through the housing will help with starting because by doing so you fill the HPOP reservoir.

[04psd250]

Well I drained my oil and everything to change it because I just bought the truck and wanted to take a precautionary with the oil.

[a2elvis]

id just fill the oil normally make sure the batteries are fully charged. It wont take that long to start.

[PGreenSVT]

Originally Posted by a2elvis

id just fill the oil normally make sure the batteries are fully charged. It wont take that long to start.

Mine took forever and several battery charges before she fired when I replaced the injectors.

[a2elvis]

Dang I must have just got lucky the couple that I have done. The one thing you can try is pulling the FICM relay, crank for about 5-10 sec stop let the starter cool down, crank again 5-10 sec. Do that a few times and then plug the relay back in, should fire shortly after that.

[Rotbody]

If your just replacing one side it shouldnt. Take the rail off for the injectors and it should fire up fairly easy. If your doing one on each side it might though since you will basically be taking out the oil when you tear the rails off. It might chug for a bit but just rev it up a bit to help it out.

[04psd250]

Alright I'll just do it the traditional way thanks everybody. I'm only replacing the #6 I figured if I have 2 or 3 injectors go out later on down te road then I'll replace all of them. Could I fill the oil rail up when I install it to help prime it? It's just my first time tearing into a diesel engine and I'm a little nervous about it all going smoothly. Thanks again