Original Thread Read:
Mystery Problem
<HR style="COLOR: #d1d1e1" SIZE=1 itxtvisited="1"><!-- / icon and title --><!-- message --><TABLE width="100%" border=0 itxtvisited="1"><TBODY itxtvisited="1"><TR itxtvisited="1"><TD vAlign=top itxtvisited="1">I have a 2001 F-250 powerstroke. It will crank up and idle indefinately but when I start to drive it-it will go maybe a mile down the road and the RPM's will start to decrease untill it completely stops. I can let it sit for about 15 min. and it will start back up again. It will sit and idle but it won't go far down the road untill it dies again. The "Service Engine Soon" light does not come on. One mechanic suggested it might be the "High Pressure Oil Pump".
Another said it might be the fuel pump in the tank. Another said it might be building up to much back pressure in the exhaust system. Any suggestions?
Any help would be greatly appreciated!

I found out that the flexable line that was attached to the metal line that goes into the fuel tank was cracked. The fuel guage showed it had fuel in it but the fuel line would not pick it up. I guess that since it was cracked it would pick up enough to idle but not pick up enough to keep up while running down the highway. Thanks to everyone who replied!
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Glad you found it. That's a hard one to track down. Basically you had a cracked line and it was sucking in more air than fuel.

 

OOOOH, I like it when mysteries have suprise endings, we all learn something.

Glad you got it fixed.

 

Yes. That is correct.

 

Thanks! I appreciate the help!

 

Thanks for the follow up- now we have yet another resolution in the tool box to help the next guy!