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Pcv valve

Charles 236

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Side by side - old and new
(also, prison vs no prison)
IMG_1897.JPG
The size of the opening is deceptive. The uninstalled valve has a smaller opening, when installed the opening conforms to the outlet on the end of the camshaft. This creates the best seal possible.
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chorky

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I'll pull mine off and look. There should be no oil there.
if you or anyone else recalls about a year or so ago there were a handfull of people I saw posting about this. Mine has been like this from day one.
Jeep Gladiator Pcv valve IMG_4500
 

ShadowsPapa

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The size of the opening is deceptive. The uninstalled valve has a smaller opening, when installed the opening conforms to the outlet on the end of the camshaft. This creates the best seal possible.
Having my laptop back again, that's just a rubber seal. So your comments make total sense.
 

AllMoparParts.com

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Yes, I saw that in a thread on Wrangler forums in which @AllMoparParts.com said essentially the same thing.
https://www.jlwranglerforums.com/forum/threads/new-version-of-pcv.113454/post-2363928
This is correct even on a 2024 model year vehicle. The cost differences are interesting

Original https://parts.allmoparparts.com/oem-parts/mopar-pcv-valve-68548886ab
TSB https://parts.allmoparparts.com/oem-parts/mopar-valve-68609110aa

eventually I'm gonna pop one of these on my Jeep

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darkhorse13

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Reviving this as I'm at 61K miles and diving deeper into some maintenance... my intake tube has standing puddles of oil (@chorky style above) and the TB is pretty wet. I only use OEM air filters and oil changes every 5K miles.

Is the TSB version of the PCV valve (68609110AA) for $43.68 the "new" one I should be looking to order?

Please and thank you.

gross... yes, I took it off and cleaned it after this lovely discovery. I'm basically going to check it every oil change from here on out.
Jeep Gladiator Pcv valve 1743462486956-h6

after...
Jeep Gladiator Pcv valve 1743462674867-yw
 
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willys 41

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Reviving this as I'm at 61K miles and diving deeper into some maintenance... my intake tube has standing puddles of oil (@chorky style above) and the TB is pretty wet. I only use OEM air filters and oil changes every 5K miles.

Is the TSB version of the PCV valve (68609110AA) for $43.68 the "new" one I should be looking to order?

Please and thank you.

gross... yes, I took it off and cleaned it after this lovely discovery. I'm basically going to check it every oil change from here on out.
1743462486956-h6.jpg

after...
1743462674867-yw.jpg
You can go ahead and replace the PCV valve with the updated one. In my case it may NO difference in the amount of oil vapors that the PVC system picks up.
My UPR oil catch can separated the same amount before and after the new valve.
Your best defense is a good oil catch can like the UPR.
 

Lost1wing

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If the pvc tube and the valve cover are the same part across the fleet, why are the pcv's different parts between 20-22 and 23-24? Just wondering because I looked at the updated pcv for my 2020 and it didn't cross. The 2020 has it's own updated part number.
 

ShadowsPapa

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If the pvc tube and the valve cover are the same part across the fleet, why are the pcv's different parts between 20-22 and 23-24? Just wondering because I looked at the updated pcv for my 2020 and it didn't cross. The 2020 has it's own updated part number.
Could be the pintle shape (longer or shorter taper), the metered hole (larger or smaller where the pintle nose opens and closes the opening) or spring tension inside the PCV valve itself.
 

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darkhorse13

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If the pvc tube and the valve cover are the same part across the fleet, why are the pcv's different parts between 20-22 and 23-24? Just wondering because I looked at the updated pcv for my 2020 and it didn't cross. The 2020 has it's own updated part number.
I mean, I completely agree as the 2020 PCV part number is different and the vehicle fitment according to the website is 2016-2022... grrr, I don't know. All I know is that the PCV hose tube is wet and where it connects to the driver side valve cover is REALLY wet. Plus both of my camshaft position sensor seals on each valve cover are weaping (I wouldn't say leaking) something terrible. At this point, if I start tearing apart the intake and valve covers I'm going to do lash adjustors and rockers while I'm disassembled... yeah, I've been reading too many "ticking" threads lately and my 3.6L with 61K miles feels like it just knows it went out of warranty :(

Done ranting for the night... thanks folks.

John

Jeep Gladiator Pcv valve 1743475190929-l
 

chorky

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Reviving this as I'm at 61K miles and diving deeper into some maintenance... my intake tube has standing puddles of oil (@chorky style above) and the TB is pretty wet. I only use OEM air filters and oil changes every 5K miles.

Is the TSB version of the PCV valve (68609110AA) for $43.68 the "new" one I should be looking to order?

Please and thank you.

gross... yes, I took it off and cleaned it after this lovely discovery. I'm basically going to check it every oil change from here on out.
1743462486956-h6.jpg

after...
1743462674867-yw.jpg
Dang man that sounds like a bit of troubles might be lurking in the dark somewhere. I sure hope you can get ahead of it before something bad happens. I do for sure miss my Gladiator, but man a few friends of mine, and our government trucks, have been having such absolute trash service at our local dealer service department that I can't say I miss the headache enough to try and get into another one. I even have been checking out the JL's for curiosity and I just see so many problems that seem excessive for a 75K vehicle.... The ol TJ and LJ are working just fine, for now - although without the extra comforts of course.
 

Maximus Gladius

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All I know is that the PCV hose tube is wet and where it connects to the driver side valve cover is REALLY wet.
I just want to clarify that your not saying what it “can” appear your saying… what it appears is that you’re saying the PCV hose is connected to the driver’s side valve cover. (You aren’t saying this right?) You could be saying the PCV Hose is wet AND the hose that’s connected to the driver’s side valve cover is also wet. (This, I hope you are saying) They are two different hose locations but both hoses can be wet.

The PCV hose connects straight across the top of the intake manifold and clips in after the throttle body and an “oil catch can” would capture this wetness before it drops into the manifold to burn it up in you cylinders, making a mess of your plugs, oxygen sensors and cats.

The other tube that enters the intake tube after the air filter would be the “fresh air IN” hose and that’s what’s making a mess on the throttle body butterfly. Some here would even blame an oiled K$N for all that mess but I’m assuming you’re running a paper filter?? Anyway, it’s strange how oil is spewing out the Fresh Air IN hose as that oiled air has to push UP an incline, from the back side of the driver’s valve cover to reach where the hose clips into the intake tube. ?? It’s a mystery to me but maybe this oil being pushed OUT an IN tube is PCV related but that hose is not physically connected to the PCV. I need someone way smarter than me to figure out the physics of that mess, so most everyone on here should be able to chime in.

Since I put on a catch can, I’m collecting 250ml of PCV oil every 5000 km oil change and that was after I changed my plugs and PCV at 60k kms.
 

ShadowsPapa

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The other tube that enters the intake tube after the air filter would be the “fresh air IN” hose and that’s what’s making a mess on the throttle body butterfly. ............... Anyway, it’s strange how oil is spewing out the Fresh Air IN hose as that oiled air has to push UP an incline,
It means the pcv is not functioning properly and/OR, they have excessive blow-by that isn't handled by the PCV.

I find it ironic that of the Jeep 3.6s we've owned, it's never been an issue.
Even mine only has a shine to it - expected to some extent because of the wide variations in load and RPM in my driving. But it's not enough to make any mess, leave any "puddle" and is such a tiny amount that even after 7,100 miles - the oil is not low enough to notice. Likely wouldn't take a cup (8 ounces) to top it off. (which is about what you are catching in the catch can)

If my math is correct, you are doing changes at about 3,100 miles, and catching roughly 1 cup (8 ounces for those south of your border).
I run more than double that and it doesn't drop that much - I'd be half a quart low or more at your rate.

Anything that exits through the PCV system is reflected by LOW OIL in the crankcase.
 

darkhorse13

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I just want to clarify that your not saying what it “can” appear your saying… what it appears is that you’re saying the PCV hose is connected to the driver’s side valve cover. (You aren’t saying this right?) You could be saying the PCV Hose is wet AND the hose that’s connected to the driver’s side valve cover is also wet. (This, I hope you are saying) They are two different hose locations but both hoses can be wet.

The PCV hose connects straight across the top of the intake manifold and clips in after the throttle body and an “oil catch can” would capture this wetness before it drops into the manifold to burn it up in you cylinders, making a mess of your plugs, oxygen sensors and cats.

The other tube that enters the intake tube after the air filter would be the “fresh air IN” hose and that’s what’s making a mess on the throttle body butterfly. Some here would even blame an oiled K$N for all that mess but I’m assuming you’re running a paper filter?? Anyway, it’s strange how oil is spewing out the Fresh Air IN hose as that oiled air has to push UP an incline, from the back side of the driver’s valve cover to reach where the hose clips into the intake tube. ?? It’s a mystery to me but maybe this oil being pushed OUT an IN tube is PCV related but that hose is not physically connected to the PCV. I need someone way smarter than me to figure out the physics of that mess, so most everyone on here should be able to chime in.

Since I put on a catch can, I’m collecting 250ml of PCV oil every 5000 km oil change and that was after I changed my plugs and PCV at 60k kms.
@Maximus Gladius thank you for asking the clarifying question as I'm referring to the "Make Up Air Hose" and was calling it (mistakenly) the PCV hose. My "MUAH" has oil in it, the plastic OEM intake tube where the "MUAH" connects (yes I only use OEM paper filters) has a stream of oil in it, and that oil has pooled up in the rubber ribs right where it attaches to the throttle body. I also attached a pic below of a very wet connection of the "MUAH" at the back of the driver valve cover. If anyone can enlighten me why this could be SO WET I'd greatly appreciate it. Regardless, I'm going to tear into the top end and go thru the passenger side "tick" procedure, replace all valve cover seals/gaskets, stick in a Dorman alloy oil cooler, water pump... etc. I really want to keep the Jeep for another couple years or (30K miles) before going to something new. For the $1500 bucks outlined below I hope that will do the trick.

Jeep Gladiator Pcv valve 1743545132853-o9


"MUAH" super wet at connector at back of valve cover (driver side)... why?
Jeep Gladiator Pcv valve 1743545952491-yz


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Jeep Gladiator Pcv valve 1743546028854-xd
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