servicerepair2013

Hello I am battling with the common 5.7 vortec fuel issue an am at my wits end! With a fuel pressure gauge on and battery fully charged I get 60 psi koeo koer is 52 psi I have noticed when I shut the key off the fuel pressure will sometimes stay at 58-60 psi for a couple days an then other times it will bleed off i a couple hours. The truck idles great but bogs really bad in passing gear or above 3000 rpm. I have changed the egr valve, ect sensor but am lost with this intermittent fuel pressure change please help and thank you!!!!!