I have a 2008 2500 with the 6.7 cummins. The check engine light came on so I checked it.Came back with a code of 2563.What the heck is this one? I can't find it anywhere.Any suggestions?

 

Most of the time that code means that your turbo is sooted up and needs to be cleaned, but then again the the tests could lead to turbo replacement. Read diagnostics and you will get a better idea of what tests need to be done to determine if turbo needs replacing.