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  #25  
Old 07-28-2011, 01:54 PM
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Re: 2011 5.7 smoking engine

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Originally Posted by reflowdude View Post
Last week I bought a 2011 Grand Cherokee Overland with the 5.7L option. I now have ~550 miles on it and noticed that when I start it, it smokes for about a minute or so.
Is this normal? My old Jeep (a 2008 Grand Cherokee diesel) did not smoke, neither did my 1995...
I would not consider it normal. My 5.7 has never smoked from the first time I started it with 6 miles on the clock.
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  #26  
Old 07-28-2011, 02:10 PM
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Exclamation Re: 2011 5.7 smoking engine

I took a short 1 minute video, not sure how to post it in this forum
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  #27  
Old 07-28-2011, 02:25 PM
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Re: 2011 5.7 smoking engine

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Originally Posted by reflowdude View Post
I took a short 1 minute video, not sure how to post it in this forum
Upload video to you tube or photobucket then post the link to the video.
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  #28  
Old 07-28-2011, 05:01 PM
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Re: 2011 5.7 smoking engine

From the many threads I've seen about this problem on several WK2 forums it seems to be at least an occasional feature for many of us. Mine has done it once in 3300 miles (after sitting nose up on a steep slope for several hours) but hasn't done it since. I haven't yet seen anyone post a cause from a Jeep service department. It is interesting that from what I've read it happens on both the V8 and the V6, and it seems odd that both engines would have the same problem.
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  #29  
Old 07-28-2011, 08:04 PM
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Re: 2011 5.7 smoking engine

This is the first time I've heard it mentioned as a possible V6 problem. AFAIK, only some V8s have been reported with smoke on JG so far. I have not seen any smoke from my Pentastar.
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  #30  
Old 07-28-2011, 08:11 PM
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Re: 2011 5.7 smoking engine

The concern is what does the oil do to the cats?! It certainly isn't good for them, and is obviously a design fauly somewhere along the line, because it sure wouldn't pass emissions tests anywhere!

I'm asking, can this be replicated? Do they only do it when parked steeoply with front up a hill?
If so, I'm interested to see if my WK will do it also, and find out if it's a long-term design fault.
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  #31  
Old 07-29-2011, 05:04 AM
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Re: 2011 5.7 smoking engine

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Originally Posted by Cherodude View Post
This is the first time I've heard it mentioned as a possible V6 problem. AFAIK, only some V8s have been reported with smoke on JG so far. I have not seen any smoke from my Pentastar.
V6 is mentioned here ...

Major smoke out of exhaust
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Old 07-29-2011, 06:12 PM
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Re: 2011 5.7 smoking engine

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Originally Posted by HammFist View Post
V6 is mentioned here ...

Major smoke out of exhaust
Sure enough, I see it at Post#8.

I stand corrected.
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Old 08-01-2011, 05:43 PM
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Re: 2011 5.7 smoking engine

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Originally Posted by jeep2011 View Post
I am hoping it was under filled from the factory and at the dealer when they changed it last week. I am going on a trip this week and will check it this weekend to see if it dropped. I made sure this time to get it right at the full mark.
Careful not to overfill...that is worse than being 1/2 quart low. There may be some variance on the dipstick level markings so that even though you have 7 qts in the pan, the stick shows it on the low side. I would recommend you NOT add any for now but continue to watch the level...like twice per day. If it was overfilled, the extra oil is usually extricated by normal engine operation until the proper oil level is reached and then you'll see no further drop in oil level. If there is substantial level change and no cumulus clouds of blue smoke, then you have a leak somewhere.

I change my own oil and when it is filled with 7qts, it reads about 1/3 onto the hatch area of the dipstick, FWIW.
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  #34  
Old 09-15-2011, 07:11 AM
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Re: 2011 5.7 smoking engine

I've noticed the smoke as well

In one instance I was pulling a boat at the ramp. Jeep idled for 3-4 minutes while pulling the boat on. Eased on the throttle to pull out and there was a lot of smoke but it passed quickly

2nd time was back at the ramp same circumstances.

I'm certain that the exaust was clear of the water but i thought maybe the exaust was splashed.

Yesterday I backed into a space on an incline, rear down. Idle for a few minutes while on the phone and then shut down for 4 hours. At start up thick puff of smoke.

In all 3 cases the windows were down. It may happen more often but I didn't notice. I'd doesnt smell like burning oil.

Oil level is fine but the trans seems overfilled when I checked last night.
Stopping by the garage this am to check.

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  #35  
Old 09-15-2011, 04:51 PM
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Re: 2011 5.7 smoking engine

I have read no official word on what might be causing this, but since it seems to happen to both the V-6 and V-8 (V-8 seems to be the worst offender), I suspect that it may be something in the design of the exhaust that is letting condensation in the pipe run into the catalytic converter(s) when the truck is sitting nose up. I do not believe it is oil getting into the cylinders, as it very unlikely both engines would have the same leaky valve guides that only leak when the engine is at an angle.
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  #36  
Old 09-15-2011, 05:06 PM
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Re: 2011 5.7 smoking engine

Drill a 1/8" hole in the lowest point of the exhaust prior to the resonators. That will allow the condensation to drain. That was a trick for the 96 +/- Grands.
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