It is real easy.

 

that_guy, how much does Chrysler pay you to be a fake news bot posting garbage on these forums with claims that there's no problem with sludge in some of their motors? It's really sad that you don't understand how engines work yet still feel qualified to comment.

 

I don't get paid, but unlike some I'm just intelligent enough not to jump to conclusions because I'm incapable of maintaining my vehicle properly.

 

Ram05red: I'm not familiar with the 4.7L and have heard they don't have the same plenum gasket blowout issue as the 5.2L/5.9L. But the same principles apply. If oil wasn't changed often enough or poor quality oil was used, the engine will build up gunk in the oil passages and the oil pickup can get gummed up. Your best bet is probably to drop the oil pan and clean up anything in there that needs it and then run a dose of mystery oil or other oil cleaner for 500 to 1000 miles followed by an oil & filter change.

Something else to consider is that the cam and crank bearings, main bearing bed plate, and some other engine components can prevent proper oil flow. Those are much more extensive and expensive repairs, of course, so it's best to eliminate the easier and cheaper things first.

Also, check out this other post of mine about dropping the oil pan on my van and clearing up the oil pressure issue: B3500 Repair. See all the black carbon chunks in the oil pan picture? That's from combustion blowby the bad plenum gasket allowed.

 

so your telling me the plenum which is between the INTAKE manifold and the block is allowing blow by (combustion byproduct) into the oil?

you do realize that more blowby would get past the rings than would come out the INTAKE side of the heads right?, the plenum leaks oil into the intake causing rough running problems from burning oil and insufficient vacuum.



please show me where on this image of a 5.2 that the blow by would be getting past the (removed) plenum into the oil. . .

 

Maybe he's drilling holes in his block to make it lighter.

 

still wouldnt put blowby on the intake side of the plenum.

in order to get to the oil the blowby would have to go past the rings (which some does all the time anyway) or the head gasket, neither is a plenum problem

 

Make it holes into the cylinders then. It adds displacement then, right?

 

or holes in the heads . . . idk im reaching for something here

 

that_guy and shrpstr325: You two really need to keep quiet because you're just making yourselves look stupid. Unless you think you're smarter than the Chrysler engineer who wrote the TSB 09-05-00 service bulletin? Which says:

So, seriously, guys. Just STHU, because you're revealing yourselves as amateurs.

Ed