Yes thank you for the all this info. My question after reading all of this is weather or not bulletproofing is needed? I tow quit a bit because I have a race car. My trailer with my car and all of my stuff is around 10,000lbs. Due to the Coronavirus I have been traveling all over the country to find street racing so I can race. (They still haven't opened NHRA in Illinos.) Any advice would be great. Also I wouldn't be doing the work. This is my first diesel. I know gas engines in and out but I just don't want to do it. I spend enough time working on the racecar.

 

does not start or it does nothing when you turn the key. After 25 or 30 minutes it will start and run another 6 miles and then dies

 

More than likely a leak in the high pressure oil system.

Couple of threads to read, and it would be best to start your own thread instead of tagging onto this one.

Read this thread, then start a new thread with the requested data:

https://www.ford-trucks.com/forums/1...g-process.html

Then read this thread, focusing in on the high pressure oil system information:

https://www.ford-trucks.com/forums/8...condition.html