2010 XLT 5.4 - Engine Problem!!
08-26-2013, 12:47 AM
#22
Senior Member
It sounds like the issue Fram used to have with their oil filters for the Ford 6.0 diesel. The filters were so cheaply made that the paper in the filter would collapse and starve the engine for oil. The 6.0 used oil pressure to pressurize the fuel. Well, when the filter paper collapsed and oil pressure dropped the truck would go in to "limp" mode or just shut off. I would imagine the engineers put a "safety" feature in the current gas engine that puts the engine in limp mode or shuts off when oil pressure drops. Once the paper moves around in the filter it would run okay for a bit and then it would happen again. Don't know if Fram is still having the issue, but if they used a cheap oil filter it could be your problem. the only way to tell is to cut the filter open.
08-26-2013, 12:49 AM
#23
Senior Member
Ok, I've read a lot of posts on here about bad gas, but did he have his fuel filter changed when he got his oil changed? If so I'm sure it wasn't a motorcraft fuel filter. A lot of aftermarket fuel filters are restrictive and can cause engine lag, dying out, and rough performance due to low fuel pressure.
08-26-2013, 01:20 AM
#24
Senior Member
It's been a little while since I worked at Ford, but I completely forgot the f150's stopped using a replaceable fuel filter mounted on the frame after 2008, my mistake, I was thinking about the 2004-2008 4.6L/5.4L engines. Should of read the title post more carefully.