05 ford f250 super duty diesel problems

[forddurr]

hey everyone im trying to get some ideas whats wrong with my truck not wanting to start.... yesterday i drove from modesto to stockton ran with no problems shut it off went into a store for about 15 min came back out an it dont want to start? i took the lines off the return side of the fuel pump an getting nothing but air fuel mix so i filled up a bucket with diesel ran a line from the pump into the bucket an from the pump to the motor got it to fire up but it would die after a few min later .... fuel pump???

[HAM_RADIO_MAN]

Usually a hot start problem like this is a classic sign of an internal high pressure oil leak.

As far a “air” in the fuel system. This can be caused be loose filter caps, fuel tank pick up problems especially if your low on fuel. The other option is that this could also be combustion gas blowing back through an injector. Please see the link provided for the balloon test to t-shoot for this. You also need to know your fuel pressure as low fuel pressure Kills injectors. Does your upper fuel filter bowl fill when you crank it.? Do yu have anyway to get your ICP and IPR values? does it start when cold?

DTS Articles - Compression Bubble Test

DTS Articles - 6.0L ICP System Leaks

DTS Articles - Detecting Combustion & EGR Leaks

DTS Articles

DTS Articles - The Balloon Test

[forddurr]

thanks i got it figured out now mix between the crap fuel an filters plugged up but the next things im doing to it will be a fass system an exhaust an afe intake

[HAM_RADIO_MAN]

The factory intake is as good as you will get unless you plan on making over 500Hp. The big problem with aftermarket intake systems is they flow great, but don't filter well at all. Diesels are not like gasers, the turbo doesn't care about filter pressure drop so much. The excess dust and debries that the filter passes to your turbo will tear up the compressor wheel. Glad you got your truck fixed

[forddurr]

well the good ol 6.0 is starting to act up again it starts an runs good but seems to be after you drive it for a while an everything warms up an you shut it off then go to start it up again it cranks an cranks an cranks then finally will fire

[diablos30]

its a high pressure oil leak, either the stc fitting on the pump or the stand pipes/dummy plugs.

[forddurr]

ok so how big of a pain will this be to fix since i have to pull both head covers off an turbo an then oil pump?