Losing Prime In Fuel Line

[closupman]

while I am not certain I think I must have a leak somewhere in fuel system after my 98 truck sets for some time it will start right up like its supposed to then after 10 or so seconds will die then I must crank it 6 or so times to get it to start then it seems to be fine can any one elaborate on this symptom or problem Thank You

[dripley]

It does sound like a leak somewhere. Next time it happens try bumping the starter(no engine start) and let the lift pump cycle once or twice. It should run for about 25 seconds a cycle and see if that helps. Check your fuel connections front to back and see if you see any moisture on them. I does not take much of a leak to let air in and very little fuel out.

[closupman]

Thanks will try that and let you know if that works.Possible return line leak?

[mopartechnician]

Whats your fuel pressure? Seems like return line leaks will cause no starts. Pull the cap off the fuel fill hose and see if that helps

[dripley]

Any fuel line, return or supply can cause it. Mine did it and it was the return line. clogged fuel tank vents can also cause it like mopartenchnician mentions. A little more info on your rig also helps. You can fill out a signature in your profile and it will show up every time.

[Ilikeoldfords]

Try to get a fuel pressure gauge on the truck too. If you arent getting good pressure to begin with then we have another problem to fix first.

[rancherman]

X2...    early  98's   are   'somewhat different'  than   late  '98's  LOL

[dripley]

I am assuming you have the 24v 98 and not the 12v 98.

[mulcher812]

I have to agree with everyone else. We really need some info on the truck what have you done to the system upgrades? This info will help us help you.   

[Ironforger]

I had the same issue.  Turned out I had a leak in the supply line just off the fuel tank.  

 

Check out my thread here:  http://forum.mopar1973man.com/index.php?/topic/8152-1990-w250-difficult-starting/