You should be able to feel it. I think it would be pretty gut less if it is not building any boost, do you see any oil leaking from the turbo anywhere? I think this turbo is pretty tough, mine has 312,000 miles and pulls like a freight train, it pulls within 10 mph of my 6.4 with a programmer and DPF delete!!
No oil leaks just seems not to have much top end speed.65MPH up a gradual grade. mine has a 122,000 on it. it does not miss or anything.Just seems not to have the power it used to. Changed fuel filter and was wondering if there was a way to tell if turbo is working under load at 60mph.
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