Lifetime Supporting Member
Join Date: Dec 2009
Feedback Score: 0 reviews
Could be a weak or failing fuel pump or a restriction in the fuel tank. That's assuming the FPR is working. Can you block the return line for a test?
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM