Originally Posted by Okiefromwatonga
OK so I am new to the 6.0 as I just purchased a 04 11 days ago. My question is when the turbo is boosting the boost gauge flutters some (3-5)PSI and cruising down the interstate the EGT's are 800-900 is this normal? Last, I filled up today and the gauge didn't register over half tank, though it most definitely is full. What gives?
Where is the boost gauge getting it's reading from, intake elbow or MAP line? If it is the MAP line, this may cause the needle to flutter. The elbow will give you the best reading. If it is in the elbow, then you may have a IC boot that has a small hole in it, usually the blue one coming off the turbo. To inspect the boot you might have to take it off, sometimes the hole can be on the back/underside where you can't see it.