Long story-short, took the engine block from a 2005 Ford E350 6.0L turbo. and put it in a 09 ford F550. Now I won't start by itself, but if I give it a taste of fuel it starts and runs great. But when it gets warm enough it cuts off. Reason why we change the engine block? costumer forgot to give it maintenance, no air filter was found so dust was going into the engine, eating up the combustion chamber. Any suggestion?. Everything was change injectors, Seals, sensors, etc.

 

Man...this sounds like one out of my league. Hopefully we'll get you some answers/thoughts.

 

Did you research this as a possibility?

I would imagine that the oils channels on the blocks are different - after all the 6.0L is high presure oil and the 6.4L is high presure fuel rather than high presure oil.

Also, the management systems are significantly different.

 

You used a 6.0 block with a 6.4 top end?

the 6.0 has less head bolts than the 6.4

the 6.0 has and oil pressurized injector system

the 6.4 has a fuelpressureized injector system.

rockers are the same for the most part

lifters are the same

cam has to be different ....what did you do for that?

why didn’t you just bore out the old block to the next piston size?

 

2009 F550 6.4 Wont Start Bucket truck
My Tech drives the truck for service and went into Limp mode several times He kept resetting the codes with a scanner to keep the truck going . Until the truck would crank ,but would not start. He did not write codes down and must have resetting 10 times without letting me know.
The truck was towed to a shop close to where he broke down. I could not give them codes they said they could not get the truck started. He brought in a Ford Tech who flashed computer. He said he could only get it started with either. After the flash I am not sure if he was telling the truth
He said the High pressure pump failed. 5100.00 job

I towed the truck to my mechanic. He said the Lift pump was out putting 2 psi. The filter was rusty and shaving in the lift pump. What I found out was my tech was running the fuel low a lot.
He Replaced lift pump and was getting 7psi. Fuel flowing great on top of the motor. Still would not start. He said he is getting 5000 psi He than thought the high pressure pump was bad and found fuel under the truck . Said high pressure pump is working. Injectors were pumping.

Checked fuse 72 actuator working fine. Pulled side of motor says crank and cam are working,however not sure if they are bent etc.

He is not sure what to do at this point.I think he is an honest guy. And trying not to rip the motor apart.

Has anyone had this experience or any suggestion would be greatly appreciated