6.0L Power Stroke Engine and DrivetrainDiscussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.
So I had 400 miles left on my trip yesterday and noticed at 70 MPH the engine was a little louder than normal, every time I engaged the turbo engine sound was normal till about 6 psi when sound returned. At idle there is a knock in the engine when I rev the engine noise goes completely away, oil pressure is fine, engine temp is fine truck runs fine except the knocking. Any help would be greatly appreciated
Tough one! Lifter? Rod bearing, sometimes they have a sweet spot where the noise goes away during acceleration.
Pull dipstick & check for metalics in the oil, you should see brass flecks if its a bearing going.
Whats the frequency of the knock?
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