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  #73  
Old 05-07-2012, 02:26 PM
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Re: Major smoke out of exhaust

happened to me in last week parked and idling on incline for 5-10min it's a Overland Hemi 4/12 build date. When I saw it I was like WTF it only has 1000 miles on it. I will keep an eye on it from now on.
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  #74  
Old 05-07-2012, 03:43 PM
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Re: Major smoke out of exhaust

Didin't you hear? There are no QC issues with the GC's. That's according to some people.
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  #75  
Old 05-08-2012, 10:06 PM
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Re: Major smoke out of exhaust

I had it happen once when I had about 1500 miles on it. Hasn't happened since at 5500. Park on hill all the time, up and down.

Interestingly, on Car Talk they mentioned this happens to many different new cars.

Unless someone has a truly bad outcome, I can't say I think this is really a "QC" issue. Anyone have something bad happen to their engine? Anyone?

I can tell you one thing, when someone realizes they overfilled their oil pan, you won't see their post on here... Only if their dealer makes them mad by not buying them a new engine.
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  #76  
Old 05-10-2012, 01:00 PM
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Re: Major smoke out of exhaust

The cause of the smoke has nothing to do with the catch can(though very early 11s had a pcv issue that was resolved with a pcm reprogram a few months after release, and was only noticeable at highway speeds).

It seems to be caused by the design of the oil pan(as others pointed out not just mopar, seems other mfgs have the same isssues). The hemi uses a front sump oil system meaing that the pan has the 'jug' in the front and the thin part of the oil pan in the back of the engine. When parked level, with the nose down, or on slight inclines the oil pan has enough angle for the oil draining out of the back of the engine to hit the pan and drain down to the sump area at the front of the pan. When the vehicle is parked with the nose up, say over 10-15 degrees, the natural gravity drain angle of the pan is negated(ie leveled out) causing a minute amount of oil to remain pooled in the thin section of the pan near the back of the engine. So when you restart the vehicle, say after a hour or so, that pool gets splashed and hits the piston skirts causing a smoking condition for the first few minutes/seconds of operation. Good news is this is such a miniscule amount of oil it doesnt hurt anything, other than one's pride I suppose.

Now whether Chrysler's engineers have come to the same conclusion or not I have no clue, this was just information I picked up talking with a few Master Chrysler techs I boat with, and when I run it through my BS checklist, it does seem very plausible.
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  #77  
Old 05-10-2012, 01:50 PM
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Re: Major smoke out of exhaust

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Originally Posted by Jahkneefive View Post
The cause of the smoke has nothing to do with the catch can(though very early 11s had a pcv issue that was resolved with a pcm reprogram a few months after release, and was only noticeable at highway speeds).

It IS caused by the design of the oil pan(as others pointed out not just mopar, seems other mfgs have the same isssues). The hemi uses a front sump oil system meaing that the pan has the 'jug' in the front and the thin part of the oil pan in the back of the engine. When parked level, with the nose down, or on slight inclines the oil pan has enough angle for the oil draining out of the back of the engine to hit the pan and drain down to the sump area at the front of the pan. When the vehicle is parked with the nose up, say over 10-15 degrees, the natural gravity drain angle of the pan is negated(ie leveled out) causing a minute amount of oil to remain pooled in the thin section of the pan near the back of the engine. So when you restart the vehicle, say after a hour or so, that pool gets splashed and hits the piston skirts causing a smoking condition for the first few minutes/seconds of operation. Good news is this is such a miniscule amount of oil it doesnt hurt anything, other than one's pride I suppose.

Now whether Chrysler's engineers have come to the same conclusion or not I have no clue, this was just information I picked up talking with a few Master Chrysler techs I boat with, and when I run it through my BS checklist, it does seem very plausible.

I understand what you are saying but I still haven't determined how the oil gets from the oil pan to the combustion chamber. The only route I can figure is past the pistons rings or the valve seals. Any thoughts?
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  #78  
Old 05-10-2012, 01:52 PM
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Re: Major smoke out of exhaust

From what my buddies are saying is that its getting splashed up into the piston skirts which then take it back up with them up the cylinder wall. I guess a good way to test it would be to park the WK on a flat or with the nose down and see if it still smokes after a cold start up. To me if it was the seals it would smoke either direction it was parked.
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  #79  
Old 05-10-2012, 01:55 PM
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Re: Major smoke out of exhaust

Quote:
Originally Posted by Jahkneefive View Post
The cause of the smoke has nothing to do with the catch can(though very early 11s had a pcv issue that was resolved with a pcm reprogram a few months after release, and was only noticeable at highway speeds).

It seems to be caused by the design of the oil pan(as others pointed out not just mopar, seems other mfgs have the same isssues). The hemi uses a front sump oil system meaing that the pan has the 'jug' in the front and the thin part of the oil pan in the back of the engine. When parked level, with the nose down, or on slight inclines the oil pan has enough angle for the oil draining out of the back of the engine to hit the pan and drain down to the sump area at the front of the pan. When the vehicle is parked with the nose up, say over 10-15 degrees, the natural gravity drain angle of the pan is negated(ie leveled out) causing a minute amount of oil to remain pooled in the thin section of the pan near the back of the engine. So when you restart the vehicle, say after a hour or so, that pool gets splashed and hits the piston skirts causing a smoking condition for the first few minutes/seconds of operation. Good news is this is such a miniscule amount of oil it doesnt hurt anything, other than one's pride I suppose.

Now whether Chrysler's engineers have come to the same conclusion or not I have no clue, this was just information I picked up talking with a few Master Chrysler techs I boat with, and when I run it through my BS checklist, it does seem very plausible.
I know for a fact Infiniti 3.5L engines have this problem as well. Both my parent's Infinitis have always had a bit of blue smoke and no issues whatsoever. One of them is still going strong after 150k miles. That is why I don't really think it is a big deal. I get some blue smoke out of mine under certain conditions. Also, I added the catch can merely to keep the intake cleaner and overcome the poor PCV system.
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  #80  
Old 05-10-2012, 02:22 PM
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Re: Major smoke out of exhaust

Well, I have a 5.7 ,but in a WK I with 138k, a catchcan, and i clean the TB and intake every few weeks. That being said, I had this happen when parked on an uphill incline as well.

In my case ,I had added seafoam to the oil to quiet the ticking(worked pretty well,by the way) but when I did the oil level went over the full mark.(I used a whole can to clean it out) It smoked every time i parked it like that (@ home) but was fine when on level ground(@work) I was WAY uneasy with all the blue smoke, but after i quit trippin about it, I just changed the oil, and (when not too full) It's been fine and thats been @ least 4 months.

P.S. it wasnt the seafoam, i use it often even in the oil and it hasnt come back. I believe Jahkneefive is right.
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  #81  
Old 05-10-2012, 08:52 PM
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Re: Major smoke out of exhaust

Quote:
Originally Posted by Jahkneefive View Post
From what my buddies are saying is that its getting splashed up into the piston skirts which then take it back up with them up the cylinder wall. I guess a good way to test it would be to park the WK on a flat or with the nose down and see if it still smokes after a cold start up. To me if it was the seals it would smoke either direction it was parked.

I only get the smoke after parking on an incline with the front up. When level and front down, I get no smoke. I guess its not seals.
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Old 05-11-2012, 03:07 AM
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Re: Major smoke out of exhaust

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Originally Posted by CTJEEP1040 View Post
2011 JGC Overland Hemi w/ 5500m on the clock- This happened to me 2x in last month, both times parked and idling on incline for 5-10min. Brought it to dealership after first time, they said it was the sticker on the exhaust burning off, I disagreed but left after they could not reproduce it. Yesterday my 8mon pregnant wife and I stopped at a starbucks, she went in to use the ladies room and I stayed outside in the car, when she came out I put the car in reverse, looked in the mirror and noticed the huge plume of white/blue smoke, I got out grabbed my phone and took a video. after puling out and 2 minutes it stopped. there is definitely something wrong here, a new car shouldnt do this. I also have had my first oil change at 3k. I didnt pay 43k for a car thats going to spew smoke out the tailpipe because Im parked on an angle, who knows what longterm affect this will have on the engine. I have been a faithful jeep drive for 20 years(all wranglers) but this will change my tune quickly if they cant give me a straight answer tomorrow when I bring it in.
Update to my situation: I brought the car in on monday, left it running on their new car side in a part of their new car lot that had the greatest incline. I walked around the lot for 5min came back and it was smoking, so I went into the dealership to the service desk, I told them that I wanted the service manager and tech to accompany me outside to the car so i could show them, they said bring the car around and they will try to recreate the issue, I told them no need as it was being recreated in the new car lot. evidently that may have gotten them to respond alittle faster as they quickly came out there and saw that the car was smoking and got me into a rental.. and got the car out of the new car lot quick. so its now friday and I still dont have it back. chrysler told them to replace the PCV valve, no change, then they said to replace the valve seals, I will find out today. but 1 more strike and they are out as I may choose to invoke CT lemon law after 3 tries. technically you have to go back to the dealership 4x for the same issue, this is 2. but there are extenuating circumstances such as total time in dealership etc... so we will see.
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  #83  
Old 05-11-2012, 11:02 AM
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Re: Major smoke out of exhaust

Well played, sir.
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  #84  
Old 05-12-2012, 04:18 PM
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Re: Major smoke out of exhaust

What dealership was this at CTJEEP?
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