No oil in the engine

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BuschLatte420

chill water by day, drink beer by night
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WNY
Ram Year
2022 classic tradesmen crew cab 6’4 box
Engine
5.7L NON E-TORQUE 3.92 gears 4x4
Replacing those parts is nice under warranty, but as others have stated I wonder where it was going and why to ruin those parts in the first place?
 

91lowrydr

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Charlotte, NC
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2017
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5.7 HEMI
I had a ram that did this. It was an internal vacuum leak. It was a 5.9 magnum motor and it had a sealed plate on the bottom of the intake. The seal went bad so the motor sucked oil out of the lifter valley. Easy way to check an internal vacuum leak is take the oil cap off and start the engine. If it pulls a vacuum into the oil cap hole it has an internal vacuum leak.
 

demonram

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2011
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5.7 Hemi
Are they going to check the rings to see if there is an issue there? If the underside of the truck is clean, and there is no evidence of an oil leak, check the exhaust tips to see if there is evidence of oil being spewed out through the exhaust.
 

Mister Luck

cassis tutissima virtus
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WEST COAST
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2016/2017
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5.7 V8
So the parts (cam, lifters & bearings) are ordered & dealer says it rolling by next week. I keep asking where could the oil have gone. The "tech" said today that the engine must have been "using" oil & it got to the point that it started throwing codes & making noise. Also said the inside of the engine was clean & no sludge, no sludge so it is covered under warranty. Finally was told there were about 2 quarts of oil in it when they pulled the pan, originally said it did not have any oil. This is the strangest scenario I've ever experienced regarding oil & an engine.
The dealer is only replacing the top-end wear components and not the bottom end ??????
 

Rammer Head

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Georgia
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2008
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3.7
I would venture that upon your last oil change either it leaked out from not tightening it which would show in your garage or the technician forgot to fill it back up. I'd push the issue that you just bought it even used has a warranty and they provided the service!
 

njjeff201

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Sparta, NJ
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2021
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5.7 E Torque Hemi
Doesn't sound like double gasketed oil filter or engine would be soaking wet underneath. I had a brother in law that left the filler cap off & hood got drenched in an MG. Maybe it wasn't filled at last oil change. Couldn't imagine bad valve stem seals...?? In the old days cars had PCV valves for crankcase pollution/emissions... I'm not even sure they still do. Clogged valve would cause oil to blow out of engine.
 
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B250

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Rhode Island
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1991
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5.2L V8 MFI
I had a couple of disappearing oil experiences. The old Saturns were famous for burning oil, but they never smoked nor did the check engine light come on. It was 'normal' to burn a gallon or more of oil every 3000 miles. But a modern engine should NOT burn any oil at all. The OBD system should pickup all kinds of faults if oil is being burnt off in any quanitiy.

A recent experience in my dodge was a pinhole in the wall of the oil filter which leaked under pressure. Maybe it was a manufacturing defect or a thin patch of metal that failed under pressure. It was barely visible - just a black spot on the filter. I only saw it when I had left it idling for about 15 minutes in the same place.

I suppose it is also possible for oil to be burnt off 'invisibly' via the PCV system (think Mazda's) if the valve is not working properly. This wouldn't always be detected by the OBD.

Kind of a long shot, also, is that my dipstick is prone to popping up about 1/2", and oil vapor could be forced out of there.
 
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