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Unread 07-08-2011, 09:56 AM   #16
Celly
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Quote:
Originally Posted by nsj View Post
Speaking of break-in period...what is it in terms of mileage and procedure? I cannot find anything in the Owner's Manual about it.
I think that is because auto manufactures figured it was more fun to watch people fight it out over the internet.

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Unread 07-08-2011, 10:02 AM   #17
Terminator2
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Quote:
Originally Posted by Celly View Post
I think that is because auto manufactures figured it was more fun to watch people fight it out over the internet.
That or because modern engines do not require an elaborate break in procedure or break in period.
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Unread 07-08-2011, 02:22 PM   #18
77rednecktruck
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Quote:
Originally Posted by nsj View Post
Speaking of break-in period...what is it in terms of mileage and procedure? I cannot find anything in the Owner's Manual about it.
beat on it, that's the best break in method.

I have built a few motors over the years and it was always the same. Start it up and check for leaks real quick, shut it down and change the oil, start it back up and go crazy. Didn't Ford pull the 3.5 EcoBoost motor off the assembly line and put it right on the dyno in those commercials? That's the best way, babying a motor from the start is a bad idea IMO.
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Unread 07-08-2011, 06:57 PM   #19
Terminator2
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Quote:
Originally Posted by 77rednecktruck View Post
beat on it, that's the best break in method.

I have built a few motors over the years and it was always the same. Start it up and check for leaks real quick, shut it down and change the oil, start it back up and go crazy. Didn't Ford pull the 3.5 EcoBoost motor off the assembly line and put it right on the dyno in those commercials? That's the best way, babying a motor from the start is a bad idea IMO.
That is what I do. I broke my turbo Cobalt in on the dyno. I also custom tuned it right on the spot (gained 65 whp and 100 wrtq over stock LOL)
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Unread 06-30-2012, 08:57 PM   #20
ColoradoGrand
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5.7 blue smoke when starting

We have a 2012 with 6,500 miles on the 5.7. Our driveway does have a slope to it and my wife and I noticed a cloud of smoke after we started it. It was sitting for 2 hours and we noticed the smoke in the back up camera. It isn't burning oil and it's filled to the proper level. Any thoughts?
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Unread 06-30-2012, 09:58 PM   #21
h2bmess
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i have a 2012 with 1700 and i noticed white smoke on startup also..
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Unread 06-30-2012, 10:11 PM   #22
dom97
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Hemi 5.7 Laredo X smokes on slopes on hills or driveway. Experience this for over a year now. I am at 16k miles. Happens on starting engine or sitting at a red light on a hill. About a 30-40 degree angle slope for me. I think it's normal.
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Unread 07-02-2012, 05:21 AM   #23
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From reading this forum it appears that most of the problems and issues come from the 5.7 Hemi engine. I have not seen many issues with the V6. Justice an observation.
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Unread 07-02-2012, 04:51 PM   #24
WvTaco
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i thought almost all of the hemis did that. no just the jeep ones.

thats y catch cans are so popular in the performance would of hemi. blow by in the pcv setup coats the hemi's intake with oil. oil drips down when cooling and you start it the oil gets sucked into the combustion chamber and you get your blue smoke.
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Unread 07-02-2012, 07:21 PM   #25
txwest
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I'm glad I haven't experienced this. I would be pissed. Even if it is "normal" a new engine should never smoke.
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Unread 07-02-2012, 08:58 PM   #26
ColoradoGrand
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Thanks for all of the comments. I also agree that a new engine should never smoke. Fortunately, it hasn't burned a drop of oil so I guess this is a good thing.
I did double check my oil level and it is a little (1/3 quart maybe) overfilled. I will remedy this when I change the oil soon.

On the flip side, I owned a Pacifica that never smoked but would go through 1 quart of oil every 800 miles or so.

I currently drive an 08 Aura with the 3.6 V-6. 141,000 miles and it consumes 1 quart of oil every 8,000 miles. I hope the 5.7 is a solid as the miles rack up.
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Unread 07-02-2012, 10:33 PM   #27
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Blue smoke is indicative of oil leaking into the chambers (as noted,) and blue smoke only on startup usually indicates either:

- Rings haven't seated yet or have come unseated, or the oil control ring has lost tension and isn't doing its job. Under 15kmiles, it can be "not seated yet." The other two generally don't happen until 200Kmiles or so.

- Valve guide seals have hardened and aren't wiping effectively until they get wet. Add a seal conditioner to correct, works probably 7/10 times.

I would suggest changing your oil, substituting one quart of Marvel Mystery Oil for one quart of engine oil. This should help condition your valve guide seals, which is probably the most likely issue at this point.

I'd dump in the MMO, since it's the much cheaper and easier fix and won't cause any damage if the valve guide seals aren't the problem. It requires no disassembly of anything, save R/I the sump drain plug and the oil filter - easy!

If the MMO helps, you can either continue doing so (won't cause any problem, and can keep other problems at bay as well. Yes, MMO is also compatible with synthetic oils) or do it every fourth or fifth oil change (just keep track.) Doing it every time only adds a few bucks to the cost of your oil change, and usually saves you a pantload in repair bills, so I consider it worthwhile.
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Unread 07-05-2012, 08:49 AM   #28
rpoverland
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Im new here at jeep forum but I posted a few replays at jeep garage about the same subject.
My 2011 overland hemi has 17000 miles and blows smoke at startup and on some incline, I took my jeep to the dealer several times to the dealer and they always had an excuse for not fixing the problem until I called the corporate offices at chrysler. They are changing the PCV valve now, let's see if that is the cure for this issue.

I'm supposed to get my Cherokee back today.

Just so you know when I called the corporate they told me there's a bulletin for this issue.
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Unread 07-05-2012, 08:59 AM   #29
rpoverland
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I have the same issue with mine. After several attempts of having the dealers fix the issue with no success i contacted the chrysler corporate and they where very helpful and my overland hemi is now at the dealer.

They are replacing the PCV valve.

Just so you know, my car is a 2011 grand Cherokee overland Hemi with 18000 miles and it blew smoke since new at start up and at some incline.
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Unread 07-05-2012, 09:02 AM   #30
rpoverland
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Shoot, sorry for the two reply's. I had issues with the phone app.

The second one has more accurate miles for the odometer.

Lol
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