Yup electric fuel pumps.

Mayfair...even after I primed all filters I still needed to crack a few injector lines to get the truck to fire. I had also replaced the VP44 at the same time so I need to bleed more of the system but I wanted to let you know this may need to be done if the truck fails to fire.

 

Yeah, hopefully I won't have to get into cracking the injector lines as I've never done that before. I'm hopeing that by pre-filling the canister, the filters, and maybe even the lines that that'll be enough to crank her over. It took a while for my truck to fire up the last time I did a stock fuel filter change, but it eventually did.

Just in case though ... what line do you crack open to bleed the air out, the input line to the VP-44?

Why did you hafta replace your VP-44?

That 1st page with the FASS instructions has me a bit nervous. It mentions the 98.5's exclusively and talks about how the diaphram on the VP-44 MAY already be cracked and that by installing the FASS it MAY create problems.

 

bleeding the fuel system is easy. . .just go to autozone or some place and grab yourself a set of line wrenches and a handfull of rags.

the VP44 itself is self priming, however the problem occurs from the VP44 to the injectors.

if your engine runs, but not very well, or misses, just take the line wrenches and gently loosen the nut holding the line closest to the head. when you see fuel start comeing from the line, tighten it back up. just that easy.

 

I'll only hafta crack that one line, or will I hafta crack em all?

Is it the first line from the VP-44?

 

My lift pump took a **** and killed my VP44. I would be suprised if you had to crack any more thanone (Start with the line closest to the front of the truck and if need be work your way back...don't crack the lines on the injector pump), I had to crack all 6 but like I said I had also replaced the VP44.

 

Ok, thanks again Rev. I don't have a set line wrenches, so I guess I'll need some huh? Do you remember what size it is? My luck I'd get a set of std wrenches and I'd have metric lines.

 

just get a giant craftsman set and you'll always have the tools you need!

 

You will need a 3/4" wrench. I got buy using an open end wrench but you don't want to twist the injector line so a line wrench would be your best bet. I tried to PM but not sure if it went through.

 

just as the others said. . .just crack one at a time till you see diesel seaping out.

if you hear a rush of air you know you just found the line that was air locked.

 

OK, thanks. I'll get one before Saturday

Yeah, I got your PM, thanks a LOT !!


Thanks for your tip as well Drew. Hopefully once I pre-prime everything I won't need to worry about cracking any of the injector lines. I'm sure it's probably an easy thing to do and once you've done it once you'll never understand why you were so nervous in the first place, but because I've never done it before and since I'll be doing the job on my own I just wanna make sure I know as much as I can prior to even starting the job. Sorry for all of the stupid questions.

mopar, you're more than welcome to bring your wrenches over along with the case of beer !!