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post #1 of 37 Old 12-02-2013, 04:32 PM Thread Starter
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hey guys i have a quick question for yall hopefully you can give me some ideas.
i have a 09 jk with 28000 miles on it and i bought it about a year ago since then it has seemed like one problem after another, but i started getting bad gas mileage so i pulled the plugs an the looked horrible changed them out and the gas mileage went back up. Now my mileage is dropping again so i pulled the plugs and the air intake tube well the plugs were dirty again and there is alot of oil in the intake from blow by which there was oil on the plugs too. My question is what could cause so much blow by on such a young engine?
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post #2 of 37 Old 12-02-2013, 04:41 PM
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Are you running an aftermarket chip or did it get a custom tune? A pic of a plug would help too.

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post #3 of 37 Old 12-02-2013, 05:14 PM Thread Starter
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Naw no tune or chip and sorry i hit the plug with a wire brush and threw it back in then cranked it up and etb went crazy.
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post #4 of 37 Old 12-02-2013, 06:11 PM
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Just curious...have you checked your PCV valve? It's possible that spring in the valve is broken and allowing more than just gasses to escape.
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post #5 of 37 Old 12-02-2013, 06:17 PM Thread Starter
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Yea after I saw the plugs that was the first thing I went an it was good.

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post #6 of 37 Old 12-02-2013, 07:31 PM
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The only other thing it could be is an intake gasket issue.
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post #7 of 37 Old 12-02-2013, 07:50 PM Thread Starter
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Yea or possible ring failure in thinking. Hey do you know anything about transmissions?

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post #8 of 37 Old 12-02-2013, 07:56 PM
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If it's the rings, you might have I burnt fuel in the oil.

Auto or manual? I'm pretty good with manual and know some stuff about auto.
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post #9 of 37 Old 12-02-2013, 08:03 PM
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have you considered putting an oil catch can in the PCV line? I know someone makes one for the JK as I saw it when I was searching for a catch can for my car. Make sure you get a decent one that will work. You can check out "bob's catch can", but I don't think he (steve) makes one for the JK. But somebody does....

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post #10 of 37 Old 12-02-2013, 08:09 PM Thread Starter
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Auto. Whenever I am on a slight incline it will not go into reverse its start slipping then finally catches an goes into gear. An haven't checked the oil yet

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post #11 of 37 Old 12-02-2013, 08:10 PM Thread Starter
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Ok an naw a catch can hadn't crossed my mind thanks for the idea

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post #12 of 37 Old 12-02-2013, 08:27 PM
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Auto. Whenever I am on a slight incline it will not go into reverse its start slipping then finally catches an goes into gear. An haven't checked the oil yet

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Usually slipping is a sign of worn clutch discs or a worn reverse band. You may wanna check for any trans codes, in case it's solenoid/pressure issue. I would check the fluid and maybe even drop the pan and see if there is any foreign material in the oil.


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post #13 of 37 Old 12-02-2013, 08:29 PM Thread Starter
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Wow thanks your first that has actually given me a good explanation.

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post #14 of 37 Old 12-02-2013, 08:37 PM
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No problem man! Let me know what you find out.


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post #15 of 37 Old 12-02-2013, 08:53 PM Thread Starter
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Will do ima look into it tomorrow I'll send an update.

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post #16 of 37 Old 12-06-2013, 05:34 PM
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You ever find out what was up with your trans?
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post #17 of 37 Old 12-09-2013, 11:42 AM Thread Starter
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Naw its been rating here almost everyday so I haven't had a chance to get to it yet to marrow supposed to be nice so if I get off in time ima do it tomorrow

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post #18 of 37 Old 12-09-2013, 03:38 PM
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Naw its been rating here almost everyday so I haven't had a chance to get to it yet to marrow supposed to be nice so if I get off in time ima do it tomorrow

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Shit! I'd rather it be raining then to have all this ice and snow and single digit temps!!


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post #19 of 37 Old 12-12-2013, 08:18 AM Thread Starter
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Haha where are you at?

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post #20 of 37 Old 12-12-2013, 09:02 AM
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Haha where are you at?

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Utah


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post #21 of 37 Old 12-12-2013, 03:04 PM Thread Starter
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Damn that sucks but I'd rather have the snow. Hey BTW what would cause the jeep lunge at low speeds like no power an then when you get to speed it will come an go almost like you hitting a rev limiter?

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post #22 of 37 Old 12-12-2013, 06:57 PM
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Damn that sucks but I'd rather have the snow. Hey BTW what would cause the jeep lunge at low speeds like no power an then when you get to speed it will come an go almost like you hitting a rev limiter?

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Like a hesitation or a surge? Could be a problem with your throttle body, fuel filter could be dirty, or any number of engine sensors could be at fault. No check engine light?


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post #23 of 37 Old 12-13-2013, 05:11 AM Thread Starter
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No check engine light an just did it at low speeds an when I got up to let say 55 I trying to pass a rig on the highway an its like I hit the speed limiter an it would not move then all of a sudden it accelerated an went past it. Also another thing I noticed is it will shift into over drive around 40 mph sometimes. Idk what its doing.

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post #24 of 37 Old 12-13-2013, 07:42 AM
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No check engine light an just did it at low speeds an when I got up to let say 55 I trying to pass a rig on the highway an its like I hit the speed limiter an it would not move then all of a sudden it accelerated an went past it. Also another thing I noticed is it will shift into over drive around 40 mph sometimes. Idk what its doing.

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It's either a trans issue or a fuel issue. You get you fuel from the same place everytime?


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post #25 of 37 Old 12-13-2013, 10:23 AM Thread Starter
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Last two times I got it from a different place but I don't think its the gas cause my father filled up at the same time as me an his truck ain't acting funny like mine

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