Heres the deal truck starts every morning perfect the same thing when i go home for lunch. After being home for an hour truck just crancks. Let it set for like 4 hours and starts fine again. No skip no smoke no nothing runs perfect. Some times when its warm it will start but after very long crank times. I do have a outlook and fuel pressure is only like 1800 when it wont start. I replaced the fca and the cascade over flow valves but same thing still happens. No fuel in oil. Any ideas im lost.

 

Sounds pretty evident that your injectors are heading south. I believe the rail pressure should be reading close to 5k before the ECM will fire the injectors but if they are on their way out it doesn't matter what kind of pressure you see.

 

Is there a way to test the injectors? and if they are bad can i just get like the 50hp tips or do i need to replace the hole injector

 

About the best way to test these electronic injectors is to do a contribution test. If the injector shows to be bad a tip won't do any good....whole injector either has to be replaced or rebuilt.

One other thing to check is your crossover tubes feeding the injectors themselves. They might just need to be re-torqued.

 

So how do i go about checking the tubes. I thought i saw a thread on here about it. Would be nice if thats all it is.

 

just went through the same thing .I will bet $ its your injectors classic sign this time install a 2 micron filter in the system and only buy your fuel from a large volume seller. my .02 also to check the tubes remove the fuel lines and retorque the big nut at the head i believe its 38 lbs # 6 is a pain