The past few times I have hauled my backhoe when running up a hill I can hear my turbo sounding like its spooling up and down almost as if it was missing. could my lift pump be getting weak and under a hard load at 70 im running out of fuel to the cp3? I also noticed at around 1500 rpm lugging a little when pulling the turbo starts to bark bad and almost as if the trucks cuttin out but it only does it under load. I have my smarty tnt-r on sw3, tq4, tm2 and my dr.p on mild preasure. This just started recently for no reason. Im geussin pump what yall think?