duster75

Mike
You run the stock fuel filter? no
What you using for fuel lines? air dog 1/2" from tank to pump on frame and from pump to V.P. Stock return in place 1/2 bypass from pump back to vulcan drawstraw1
Have you checked the injector lines for leaks at the VP and connector tubes? That is my next thing need to find best way to check.
Is the fuel tank pressuring up?well it was then I removed fact. plug on vent as described in earlier post to rage blue. Have not had it running long enough since to check

duster75

Well got truck running again, bled lines.... parked it on hill let it get up to temp and shut it down with fuel pressure at 17 psi at v.p... tried to restart about 4 cly's of l.p it started...... shut it down ...15 min later it will not start no matter how many times I cycle l.p. there is no pressure in tank. 1998 1/2 truck should kick codes with turnining key on off right? No codes could it still be V.P ? Guess my next step will be pulling injectors and checking o rings seals . Any other ideas? Thanks, Nate

Purplezr2

Can't check the codes with out a scanner on a 98.5,

Mike Holmen

You still have the stock filter canister? If you do, reinstall the filter and see what happens. I just have a bit of a leak on my line going from my fass to my VP, it allowed air to vent and cause fuel to drain backwards towards the tank. Its easier than doing the orings. You have any fuel drips under the truck?

duster75

Mike went and rented a code reader from o-riellys and got the bad news V.P is dead.....P0216........P1693 and no stock filter canister I have a air dog 100. I guess when they go they go$$$$$$$$$$$$$$$$$ Nate