New Version of PCV

[Willys41]

It's a great idea for a company to sell a product to make money.

TSB 09-012-22
After installing my UPR oil catch can ALL my spark knock was gone.I now have clean oil free air stream.
The first time I heard the spark knock at only 10k on the motor I was running 91 octane and at 4k elevation.
Now at 30k I have not heard ANY knocking.

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[Dusty Dude]

I can see you don't care when climbing a steep incline that there is a possibility to suck oil into the PCV system and into the motor.
I have seen it in person and its not in my plans to have it happen to me.

Quite the opposite! Sorry for the misunderstanding. I installed a catch can on my Challenger when it was new. 170K+ miles later, my intake and cylinders are clean. A catch can was installed almost right away on my 3.6 for the same reasons you have highlighted. My point was that they didn’t have new engines burning oil back then like they do now. I believe all this oil blow by is a side effect of trying to achieve CAFE standards. Low tension piston rings in order to reduce friction.

 

[Dusty Dude]

Yea, okay.
Meanwhile every other car on the road is burning a half quart or more per 1000 miles and running along just fine.

That doesn’t make it right. Any engine that used that much oil back in the day would have been rebuilt or tossed in the scrapyard.

 

[mwilk012]

That doesn’t make it right. Any engine that used that much oil back in the day would have been rebuilt or tossed in the scrapyard.

There really isn’t a nice way to say “you’re just making this up”. We work on all makes and models. The only engine in America that doesn’t burn oil at an excessive rate is this one.

 

[Dusty Dude]

Yea, okay.
Meanwhile every other car on the road is burning a half quart or more per 1000 miles and running along just fine.

That doesn’t make it right. Any engine that used that much oil back in the day would have been rebuilt or tossed in the scrapyard.

There really isn’t a nice way to say “you’re just making this up”. We work on all makes and models. The only engine in America that doesn’t burn oil at an excessive rate is this one.

Oh, really? I’m making it up? Ok, since you are an expert that works on all makes and models, then look at this photo.

The arrows point to where the PVC line connected to the intake system. It is outside of the air filter element. Every American manufacturer had the hose located in the same place. Why was it moved to an entry point behind the throttle body on the newer engines?

(Hint: I can show you pictures of the insides of these air cleaners and they are bone dry. Not a drop of oil in them.)

 

[mwilk012]

Oh, really? I’m making it up? Ok, since you are an expert that works on all makes and models, then look at this photo.

The arrows point to where the PVC line connected to the intake system. It is outside of the air filter element. Every American manufacturer had the hose located in the same place. Why was it moved to an entry point behind the throttle body on the newer engines?

(Hint: I can show you pictures of the insides of these air cleaners and they are bone dry. Not a drop of oil in them.)

Let's get specific on make and model and I'll give you the diagram. PCV should route to the carb on your old shit. The port on the air cleaner housing is not the PCV. Hell, your 3.6 has the same connection for the fresh air makeup back to the engine. PCV consumption is not the primary cause of oil consumption on most engines anyway. This really isn't anything worth arguing, its simply fact that the pentastar engines burn less oil than nearly any other engine on the road. Off the top of my head I can't think of another high production number engine that has such low consumption.

 

[ym0bc1]

In the TSB document, it refers to the engine sale code ERG or ERC. I'm wondering if anyone knows where to validate my engine is on this code? I have 2021 JL 3.6L "V6 24V VVT ETORQUE ENGINE UPG I" from build sheet.

 

[mwilk012]

In the TSB document, it refers to the engine sale code ERG or ERC. I'm wondering if anyone knows where to validate my engine is on this code? I have 2021 JL 3.6L "V6 24V VVT ETORQUE ENGINE UPG I" from build sheet.

That’s the 2 options on the JL’s for the 3.6.

 

[Pareto Offroad]

Current and serviceable part number being sold is 68210345AC
Previous # was 68210345AA

Please let me know if you have any other questions.
Thanks,
-Benny

You guys are a great resource here. I know it’s business, nevertheless Thanks!

 

[ALRUI]

Let's get specific on make and model and I'll give you the diagram. PCV should route to the carb on your old shit.

Just a side note, the Road Runner the oval air cleaner came off of is likely worth double our Jeeps even in "shitty" condition

 

[ym0bc1]

I got the part. But the box is the part number from tsb while the pcv body showing different number.

 

[Dusty Dude]

Just a side note, the Road Runner the oval air cleaner came off of is likely worth double our Jeeps even in "shitty" condition

I found that air cleaner half buried in the dirt next to a parts car in an abandoned farmyard. I paid two cans of Old Milwaukee beer for it…

 

[ym0bc1]

Looks like the latest part number is 68609110AB - it replaced all other variants (68210345AC, 68609110AA), and the TSB is referencing it.

I installed 68609110AA from two years ago and it still getting lots of oil in the catch can. Not sure if this would help.

 

[roaniecowpony]

I think a "catch can" is a wonderful thing....for a car or truck that never see's the angles I take my jeep to, and has an owner that is enough of an "enthusiast" that he'll drain the thing before it's a problem . It's simply an additional air-oil separator. Mann-Hummel makes some that are more sophisticated than the simple type of V8 juice can that is popular. But if you want to further define the difference between a simple catch-can and a more sophisticated OEM type of air-oil separator, I'd say catch-cans are simple, small, expansion oil vapor condensers, where an air-oil separator is often larger and has more baffling and some have membranes to catch droplets of oil, and the single thing that makes them practical for the general public, is they all have return lines to self-drain to the crankcase.

"Back in the day" we had carburetors that flushed the oil vapor down the hatch with fuel. They mixed right togther under the carburetor. That kept our intake manifolds pretty clean. Some engines had a plate that went under the carburetor, some attached to the carburetor itself, some to the intake manifold. There should not have been crankcase vapor going into the air filter housing.

 

[roaniecowpony]

In the TSB document, it refers to the engine sale code ERG or ERC. I'm wondering if anyone knows where to validate my engine is on this code? I have 2021 JL 3.6L "V6 24V VVT ETORQUE ENGINE UPG I" from build sheet.

ERG is E-Torque. ERC is the regular 3.6L.

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