CLASS RACER FORUM - View Single Post - 2008 Ford Super Duty F-350

Johnny U · 07-08-2009, 08:56 AM

The 7.3 and the 6.0 use to use high pressure oil to fire the injectors as where the 6.4 now just uses a high pressure fuel pump to inject the fuel into the cylinder. Oil change intervals were much more important on the 7.3 or 6.0 thats why the oil change interval is longer on a 6.4 because the injectors dont rely on oil no more. Does the truck run smooth otherwise? Still think it is a bad injector. You can monitor the fuel trim and pick out bad injectors with a proper scan tool, but in your case call customer relations and tell them what is going on and they should help you and they will probably tell you to take it to another dealer to get it repaired.

07-08-2009, 08:56 AM	#8
Johnny U Junior Member Join Date: Jul 2006 Location: Oakville Ontario Canada Posts: 55 Likes: 0 Liked 0 Times in 0 Posts	Re: 2008 Ford Super Duty F-350 The 7.3 and the 6.0 use to use high pressure oil to fire the injectors as where the 6.4 now just uses a high pressure fuel pump to inject the fuel into the cylinder. Oil change intervals were much more important on the 7.3 or 6.0 thats why the oil change interval is longer on a 6.4 because the injectors dont rely on oil no more. Does the truck run smooth otherwise? Still think it is a bad injector. You can monitor the fuel trim and pick out bad injectors with a proper scan tool, but in your case call customer relations and tell them what is going on and they should help you and they will probably tell you to take it to another dealer to get it repaired.