I have a slite knoke in my moter at 1000 rpm it vibrates vary little it seams as if it is missing it does not blow eny smoke out in eny coler it should blow black when you step on it but it does not do that ether so some say it hase a fuel problem I'm not shure so if you have a answer let me know thanks

Get rid of it now! They are crap. If you don't believe me, look at Ford's stock. Around $8.00 a share. I have known a lot of people that owned them. They just fall apart.

The 7.3L Powerstroke is one of the best, reliable and longest lasting Diesels ever made. They are very easy to work on with simple hand tools, and a Scanner. Have a Mechanic plug in a Scan tool/tester to the OBD-2 port and they should be able to easily troubleshoot it. They will shut down one cylinder at a time using the scan tool and figure out which injector is causing the problem, if that is what the problem is.

Keep the truck, you will regret it if you get rid of it.