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Blowby/PVC clogged?

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Old Mar 28, 2012 | 10:34 PM
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Default Blowby/PVC clogged?

So I'm getting a little blowby (small amount of smoke in valve cover) my timing is spot on, so I'm thinking the PVC is clOgged? Or CCV or PCV whatever. The little port on the top of the valve case. Anyone else have this problem?
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Old Mar 28, 2012 | 10:36 PM
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Greatly appreciate any help!! Oh and compression is good.
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Old Mar 28, 2012 | 10:50 PM
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Also, no coolant disappearing, oil looks completely normal. I'm kinda at a loss?
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Old Mar 28, 2012 | 11:15 PM
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http://www.jeepforum.com/forum/f310/...ite-up-733669/

This is a great write up and has all necessary part numbers listed in it as well. A clogged CCV system could definitely cause your symptoms.
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Old Mar 28, 2012 | 11:32 PM
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Originally Posted by 1996sportXJ
http://www.jeepforum.com/forum/f310/...ite-up-733669/

This is a great write up and has all necessary part numbers listed in it as well. A clogged CCV system could definitely cause your symptoms.

Thanks man! It's stumping me so hard. And I can't get the thing off my cover to see if it's clogged.
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Old Mar 28, 2012 | 11:36 PM
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No problem! There is a good method on that write up for getting the elbows out of the grommets. I'd try and do that. But be veryyyyyyyy careful because from everything I have read, they break extremely easily
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Old Mar 29, 2012 | 12:32 AM
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Originally Posted by 1996sportXJ
No problem! There is a good method on that write up for getting the elbows out of the grommets. I'd try and do that. But be veryyyyyyyy careful because from everything I have read, they break extremely easily
This doesn't say anything about causing blowby though? This will cause blowby correct?
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Old Mar 29, 2012 | 12:41 AM
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He only replaced them because they were leaking oil at the grommets. And decided to replace the elbows and lines while he was already doing the grommets just for reassurance. You will need to do this replacement for a different reason (and yes, blowby can be cause by a clogged CCV system.). So using the methods in the write up, remove the elbows and go ahead and check them to see if they are in fact clogged.
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Old Mar 29, 2012 | 01:17 AM
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Originally Posted by 1996sportXJ
He only replaced them because they were leaking oil at the grommets. And decided to replace the elbows and lines while he was already doing the grommets just for reassurance. You will need to do this replacement for a different reason (and yes, blowby can be cause by a clogged CCV system.). So using the methods in the write up, remove the elbows and go ahead and check them to see if they are in fact clogged.
Okay. Thanks again man. Great help. Mine had funk around them too so I'm guessing that's the problem. And I have a tiny bit in my air filter hose going to the tb. I hope this is it cause nothing else seems to be the problem.
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Old Mar 29, 2012 | 01:21 AM
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Originally Posted by trust96xj

Okay. Thanks again man. Great help. Mine had funk around them too so I'm guessing that's the problem. And I have a tiny bit in my air filter hose going to the tb. I hope this is it cause nothing else seems to be the problem.
Not a problem at all man. I hope that does solve your problem. Pretty dang cheap fix too!
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Old Mar 29, 2012 | 01:24 AM
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Originally Posted by 1996sportXJ
Not a problem at all man. I hope that does solve your problem. Pretty dang cheap fix too!
For real. I've been dumping so much money into my xj lately. Damn. Haha. Would this also explain rough idle mixed with my cracked header?
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Old Mar 29, 2012 | 01:29 AM
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Originally Posted by trust96xj

For real. I've been dumping so much money into my xj lately. Damn. Haha. Would this also explain rough idle mixed with my cracked header?
Haha I know exactly what you're talking about. As far as clogged CCV causing rough idle, I would assume that it would contribute to it. But I don't have personal experience with that so I can't tell you for sure. Cracked header will definitely cause it though, ask me how I know! Haha
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Old Mar 29, 2012 | 01:37 AM
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Originally Posted by 1996sportXJ
Haha I know exactly what you're talking about. As far as clogged CCV causing rough idle, I would assume that it would contribute to it. But I don't have personal experience with that so I can't tell you for sure. Cracked header will definitely cause it though, ask me how I know! Haha
Oh I already know man. I have my APN in transit to my door right now. Did you see those pics of my motormounts that caused the cracked header? Shoot I can't believe I did that.
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Old Mar 29, 2012 | 01:38 AM
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APN header*
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Old Mar 29, 2012 | 06:59 PM
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So I didn't pull off the elbow or grommet, just pulled the long off and the smoke just got worse, then replaced and was much better. Still there though. I'm lost
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