Mechanics

MY 99 F350 POWERSTROKE IS RUNNING ROUGH ON MORNINGS.

1999 Ford F-350 • 115,000 miles

Starts fine and after just a few minutes on the road it starts to lose power like its running out of fuel. The accelarator does nothing and then it cuts off and is hard to start back up. Acts like no fuel. Smokes heavy and engine knocks after restart. After engine warms up it seems fine. Replaced fuel filter and cam sensor.
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Smokin Joe
November 16, 2011.



You need to check the lift pump pressure as well as the high pressure pump. It does sound like a fuel issue but you need to have it check to make sure of the exact failure.

Make sure the oil level is good as well.

Roy

ASEMaster6371
Nov 16, 2011.
I will check it this weekend. I'm in the military and that will be the first time I will get a chance.

Tiny
Smokin Joe
Nov 16, 2011.
You should check the fuel pressure and pump restriction.
I am providing you with the procedure and specs.
Please note footnote on fuel pressure spec chart as they denote test location.

Roy

ASEMaster6371
Nov 16, 2011.