When I first got my '01 Cummins back in 2011, I put a fuel pressure gauge on it almost immediately. The lift pump had 0 pressure...it had the dealer installed in-tank pump.
I replaced it w/ an AirDog system and have been driving it ever since w/ no trouble from the VP44.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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