fuel Forum › Forums › Tractor Troubleshooting › fuel This topic has 2 replies, 3 voices, and was last updated 12 years, 10 months ago by Bob Rooks. Viewing 2 reply threads Author Posts January 19, 2012 at 1:27 pm #30494 deanwattsParticipant Offline Has anyone had a problem anything like this: my 454 only runs normally on the top 3 gallons of the tank January 19, 2012 at 6:08 pm #34084 SpringValleyParticipant Offline There is more fuel pressure when the tank is full. Look for partial blockage, screens, filters etc. January 19, 2012 at 6:21 pm #34086 Bob RooksParticipant Offline Welcome Dean , Totally agree. You may have to remove the sediment bowl assembly to check the in-tank strainer. There is also a mini-strainer in the lift pump suction banjo bolt. This symptom also suggests the onset of diesel bug contamination. See if there is a dark brown or black sludge anywhere in the fuel system. Account deleted. Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In