okay so so my 6.0 Powerstroke has been running rough. After maybe 10 minutes of driving it will idle rough. Then when I get to maybe 40 mph and give it a little throttle the truck shakes really bad but once I let off its fine. And if I hit the throttle wide open it seems like it's a little down on power. Truck also doesn't throw any codes. Can anyone help?

 

Have the codes read ANYWAY. Just because the Check Engine Light doesn't come on does not mean there are no codes.

Do you have any kind of aftermarket instrumentation to help us determine what your problem is? A ScanGauge II ( or other) would almost be a requirement to own a 6.0.

 

All I have is my SCT programmer and I just scanned for any DTC codes and none were brought up. Should I go to auto zone or a place like that to look for codes?

 

I'm guessing an injector. Find yourself a local shop that can see live diagnostics and it will become very clear.