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Any other "07"s need piston rings

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Old 11-24-2010, 04:45 AM
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Originally Posted by PennsWoods
Hey, Reiper, did you get a lot of ignition knocking prior to this teardown? I'm wondering if the carbon buildup made hot spots and caused preignition or detonation. I've had a lot of pinging the last few months and the oil consumption has really gone up. Thanks.
No knocking that I noticed but when it was idling it kept acting like it was misfiring or getting ready to stall
Old 11-24-2010, 04:46 AM
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Originally Posted by backroadman81
could you find out what brand oil they are using?
I'm pretty sure it was Castrol
Old 11-24-2010, 04:51 AM
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Originally Posted by JKlad
Hey Reiper, did they give indication on what they found the cause of all that oil getting past the rings to be?

Many here that have had their motors dissassembled due to oil burning have found that the rings were installed incorrectly at the factory (ie: gaps lined up on the compression rings, oils control rings all installed upside down, etc). Keep us posted, eh!
I didn't ask because the mechanic who was working on wasn't there yet , I'll find out when I go to pick it up
Old 11-24-2010, 04:11 PM
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Originally Posted by backroadman81
could you find out what brand oil they are using?
I believe Chrysler just changed from Penzoil to Shell

A birdie told me
Old 11-24-2010, 04:34 PM
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A not so proud member of the quart/1,000 mile club here. At 76,000 miles, I'm just hoping that Mobil 1 can perform miracles because I'm seeing a lot of threads about issues with the 07/08 engines. I just changed my oil this weekend and I will be watching it very closely from here on out.
Old 11-24-2010, 04:50 PM
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Originally Posted by Saharaunlmtd
A not so proud member of the quart/1,000 mile club here. At 76,000 miles, I'm just hoping that Mobil 1 can perform miracles because I'm seeing a lot of threads about issues with the 07/08 engines. I just changed my oil this weekend and I will be watching it very closely from here on out.
Look at your engine number (see post #47) and post where the engine was made.
Old 11-24-2010, 05:15 PM
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Wow....that is horrendous! I have seen plenty of carbon buildup on pistons before, but nothing that bad. I hope they do right by getting it fixed properly. Best of luck, keep us informed, and please........take as many pics as you can
Old 11-27-2010, 11:27 AM
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Also look into seafoam treatment see what you think
ronjenx has great input I would follow his suggestion in post #68 after all they say Chrysler reads these post !

https://www.jk-forum.com/forums/show...04#post1942704

33

Last edited by 33 williys 77; 11-27-2010 at 11:38 AM.
Old 11-27-2010, 11:49 AM
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Yes but would Chrysler void the warranty for using 5W30?????
Old 11-27-2010, 12:07 PM
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Picked up the Jeep yesterday everything seems to be running ok. I didn't get a chance to talk to the mechanic who worked on the Jeep. I asked the service manager If the rings were installed wrong or what would make them do that and he never really gave me a straight answer as to why this happened. He did tell me that the rings that are in it now are different from the ones originally installed. I asked if should be worried about this happening again and he said no... we'll see. I'll probably be getting a call from Chrysler in a few days, I'll keep everybody posted.


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