Injector issues
There is no sensor onboard to measure fuel pressure, but you can buy an adapter and a little gauge on eBay and measure it yourself.
Or you can do what's necessary to prevent a low fuel pressure condition from ever occurring. Every 6.0 running around WILL eventually develop the following problems that result in low fuel pressure:
* fuel tank delamination, causing gummy paint chips to clog up the pickup screen, requires you to drop the tank and wire-brush it all out with acetone
* fuel filter clogging due to aforementioned gummy paint chips, requires frequent replacement until you drop and clean the tank
* fuel pressure regulator (mounted in fuel bowl) OEM spring weakens, requires replacement with "blue spring" kit
* older fuel pressure regulator design has an o-ring just inside of the spring (the black donut presses against it) that slowly rots away, is fixed with a "blue spring" kit
* the two banjo bolts that join the fuel lines to the cylinder heads have internal check-valves that clog, these bolts need to be drilled out to remove the check-valves (as Ford did with the 6.4)
You absolutely should do all of those things to your 6.0, period.
Unless you own stock in Alliant and are excited about the sale of more replacement injectors.
There is no sensor onboard to measure fuel pressure, but you can buy an adapter and a little gauge on eBay and measure it yourself.
Or you can do what's necessary to prevent a low fuel pressure condition from ever occurring. Every 6.0 running around WILL eventually develop the following problems that result in low fuel pressure:
* fuel tank delamination, causing gummy paint chips to clog up the pickup screen, requires you to drop the tank and wire-brush it all out with acetone
* fuel filter clogging due to aforementioned gummy paint chips, requires frequent replacement until you drop and clean the tank
* fuel pressure regulator (mounted in fuel bowl) OEM spring weakens, requires replacement with "blue spring" kit
* older fuel pressure regulator design has an o-ring just inside of the spring (the black donut presses against it) that slowly rots away, is fixed with a "blue spring" kit
* the two banjo bolts that join the fuel lines to the cylinder heads have internal check-valves that clog, these bolts need to be drilled out to remove the check-valves (as Ford did with the 6.4)
You absolutely should do all of those things to your 6.0, period.
Unless you own stock in Alliant and are excited about the sale of more replacement injectors.
My understanding is only the F550 on up have metal fuel tanks. We all have plastic ones with no paint inside.
I just did my blue spring and didn't see any o-ring in the fuel pressure regulator around the spring like you describe -- any idea what year they changed that design?
There's a lot of controversy on whether the 6.0 banjos w/ check valves are better or the 6.4 ones w/o check valves. A lot of folks have switched to the 6.4 ones and nobody seems to definitively tell a difference. I hadn't heard of stuck check valves before myself, I thought folks were doing it because they thought the 6.4 ones flowed better. I'm always interested in learning tho...










