I bought a 2003 F250 6.0...When I start it sounds like it has a miss and runs rough...the owner said he replaced some of the injectors on it and it still missed. He thought it was a rod or other injectors.. Be for I send it to the dealer to look at. I was hoping some one could give me troubleshooting points. I spent $ 6500 on the vehicle, so I don't want to have to pay a lot more if it cant be fix...Thanks

 

You could spend a lot of money throwing parts at it, but I have to say there's not too much on a diesel motor that's not going to get expensive to fix.

The first think a new owner should have in a monitor, something like a ScanGage or others typically mentioned here so data and codes and be reviewed and discussed.

Second, with an unknown vehicle history I would spend the money on having a Ford IDS test done where a relative compression test and an injector test, compensated and uncompensated, can be done along with a review of any existing codes. When anyone has asked me personally what they should do to check out a vehicle, that is what I tell them face to face.

These trucks are too complicated and expensive to try to diagnose anything by guess.

 

I will have the IDS test and let you know how it goes. Thanks for the information...

 

Where are you located? You might have someone close by that can do a scan for you.

 

I second a type of live data monitoring tool, such as ScanGauge 2. But a bad or low voltage FICM can make this issue appear as well, until the engine is warm.

Get a live data scanner!

Thanks - P