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Power Strokes
6.4 Tech
Name this engine noise... (video)
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[QUOTE="sootie, post: 1511588, member: 8162"] not sure what "safe to run" is, its damaged now...and most likely will require a complete teardown to repair. if the thumping is in the intake when you remove the air cleaner, i would move towards a failed lifter or a valvetrain issue. if there is a puff puff puff out the oil fill, i would suspect cracked piston. No, it wont be a sticking valve. I have never seen a broken crank on a six four. Dropped valves usually barely run and make a ton of smoke while doing so (typically whats left of the piston is in the pan and the rod and wrist pin are clanking around the cylinder). Pull the code and see what it is. Drain the engine oil and see how much/what material comes out. Maybe cut the oil filter apart too. [/QUOTE]
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Name this engine noise... (video)
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