i finally put my gauges on over the weekend. pyro, boost, transmission and fuel pressure. i also put in bango bolts from wildcat, 5 of them. i used isspro's gauges. i hooked up the tapped bango bolt on the post filter side. made the connection with the ss line in to the cab. changed the fuel filter. bump started the lift pump 5-6 times. tried to drain out some fuel and got nothing. ended up having to pressurizing the fuel tank to get it primed and started. i ended up having no fuel pressure reading after it started but while i was pressurizing the tank i had 5#'s. we unhooked the ss line on the taped bango bolt and nothing ran out while the engine was running. we took all fittings apart and the were not are blocked. also blew some air in to the ss line and the meter did moved. well i figured the lift pump was going bad. i was able to make 18-20#'s of boost. i took it to the dealer and i was told i had 10#'s of psi pre-filter. asked them to show me this on their gauge. he told me that they used their scan tool to determine this. told him i was hoping they would us a mechanical gauge. then i got a big lecture about how bad it was to be tapped in the bango bolt and that i should use the test port. he assured me that i had plenty of presure on the pre-filter side. he told me to hook my gauge there and i would be fine. well guess what i still have no presure reading even from the pre-filter test port. i left it hooked up this way and will be back tomorrow morning. had to pressurize the fuel tank to get it restarted. he told me the only lift pumps that go out are high milage trucks and not to believe everything on the internet. how can a scan tool make this reading?? why wouldn't there be any fuel coming out of the top of the tapped bango bolt with the engine runningand the ss line unhooked??? we did unhook the ss line at the gauge and some fuel spilled out very slow. i still believe the lift pump is going bad or am i wrong???
well post what happens tomorrow.
Duane
well post what happens tomorrow.
Duane