My Duramax seems to be gettin weakhttp://www.dieselplace.com/forum/smileys/Angry.gif. I had a injector problem a year ago but it went away and never had it checked out. If I were to buy my 00 ford powerstroke back I know that truck would leave my duramax in the dusthttp://www.dieselplace.com/forum/smileys/Cry.gif. That would be both of them stock also. Could the injectors be out of timeing and cause it to loose all its power and fuel milage? How can I tell the injectors are out of timeing, and if I take it to the dealership to have them check the timeing is it something that can be done fast or will I have to leave it there over night?http://www.dieselplace.com/forum/smileys/Angry.gif When I bought the truck I never got to take it over any big hills so I couldnt compare to my ford. I was exspecting alot more when I bought this truck and now Im not so sure.http://www.dieselplace.com/forum/smileys/Broken Heart.gif