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  #13  
Old 11-15-2010, 01:53 PM
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Re: 2011 5.7 smoking engine

Where is the smoke coming from? Tail pipes? Top of the engine? Bottom of the engine? Side of the engine? Middle of the steering wheel?

My engine smelled like burning after running it for the first 1500 miles or so. I never noticed any smoke, though.
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Old 11-15-2010, 01:58 PM
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Re: 2011 5.7 smoking engine

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Originally Posted by wk2overland View Post
for me it was like a decent puff of gray smoke. didn't really concern me, but it was a good amount. the kind that lingers around for a minute or two

*edit: it was NOT blue/gray... just so nobody freaks out about oil leaks etc. didn't smell like that either.
If I look at both of my cars they will do that on start up.
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Old 11-15-2010, 02:05 PM
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Re: 2011 5.7 smoking engine

This is quite normal for many engines. The smoke is oil. I see it all the time with several makes and models at my valet job. Happens every once in a while, especially when new.
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Old 11-15-2010, 02:17 PM
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Re: 2011 5.7 smoking engine

Out of the tailpipe cars will do it if you just start the car move it a little ways....then when you start it again it will smoke oil from the tailpipes. IE like backing the car out to wash it and then pulling it back into the garage.

A lot of cars will smoke from the front grille as it warms up and burns condensation off.
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Old 11-15-2010, 03:08 PM
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Re: 2011 5.7 smoking engine

According to this link , the 5.7 Hemi feeds a small amount of oil back into the engine (we're talking droplets), along with unburned fuel and condensation.

A "catch can" prevents oil and water from being sent into your intake.

You have to empty it at every oil change. There is a lot of info online regarding these 'catch cans' in relation to the Hemi.

Here are some, but I don't know if they fit the WK2. http://shophemi.com/c-835-jeep-catch-can.aspx

Looks like it might be a good idea just to keep the motor clean, and takes 5 minutes to install.
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Old 11-15-2010, 06:21 PM
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Re: 2011 5.7 smoking engine

Quote:
Originally Posted by GlowingGhoul View Post
According to this link , the 5.7 Hemi feeds a small amount of oil back into the engine (we're talking droplets), along with unburned fuel and condensation.

A "catch can" prevents oil and water from being sent into your intake.

You have to empty it at every oil change. There is a lot of info online regarding these 'catch cans' in relation to the Hemi.

Here are some, but I don't know if they fit the WK2. http://shophemi.com/c-835-jeep-catch-can.aspx

Looks like it might be a good idea just to keep the motor clean, and takes 5 minutes to install.

IMHO not needed. My 5.7 has 2300 miles on it (1300 since first oil change where it was changed from factory fill to Mobil 1) and as I mentioned the smoking only happens when first started. I do park outside often, but I also know what condensation looks like burning off. Smoke appears to be grayish in color from tail pipes only and disappears within a minute or so and then just the usual exhaust "vapor" until the pipes and surroundings have heated up to running temp and then no exhaust of any sort visible. I religiously check the oil and maintain my vehicles and I have seen ZERO change in oil levels visible on the dipstick. So if it is burning oil it is a microscopic amount and the catch can is not needed. I believe it is residuals from manufacturing, it has steadily lessoned since I go the jeep a couple months ago. If it is still smoking after maybe 10K then there may be an issues, but at this point I believe it is normal and to wait to see. Monitor the oil levels closely and see what happens (besides you got 3 years or 36,000 miles before you have to worry about blowing up the engine!)


I will try to get a video during daylight if I am able sometime this week and will post.
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Old 11-15-2010, 06:48 PM
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Re: 2011 5.7 smoking engine

I have seen similar smoke on mine as well, which quickly goes away.

That said, people say they find about a 1/2 cup of liquid (milky, oily) between 5k oil changes. It's probably 90% water and a teeny bit of oil...too little to make a difference in the dipstick. It's probobly not such a bad idea to keep that gunk out of the intake. Lots of performance guys of all brands seem to be using these cans.
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Old 11-15-2010, 08:28 PM
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Re: 2011 5.7 smoking engine

Mine hasn't shown any signs of smoke, but my HEMI has burned a quart of oil already (in 1800 miles). Starting to get worried since I have never had a car burn oil before.

Had the oil changed and checked it 3 days later, it was a quart low. Hopefully they dealer didn't fill it all the way. I filled it up and I am going to monitor it closely.
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Old 11-15-2010, 08:35 PM
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Did you do it yourself or have it changed at dealer or a place like jiffy lube? If you do a search on google about the 5.7 it seems common that people claim it takes .5-1 quart over what it states in the manual. No idea why mine was right on when I changed it. Possibly the shop slightly underfilled it? Or maybe yours really does take the mysterious extra oil.
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Old 11-15-2010, 09:49 PM
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Re: 2011 5.7 smoking engine

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.
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Old 11-16-2010, 04:38 PM
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Re: 2011 5.7 smoking engine

In the "old days" smoking at startup would indicate 'loose' or worn valve guides... as the engine warmed up the valves and guides would seat better and the oil would no longer leak into the combustion chamber... IIRC what usually happened was that oil in the rocker covers would pool over night and seep through....
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Old 07-26-2011, 09:45 AM
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Exclamation Re: 2011 5.7 smoking engine

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...
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