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Old 06-06-2014, 10:32 PM   #1
Join Date: Jan 2012
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What's this?

I'm one of the poor soles that owns a 2012 and had to have a new drivers side head replaced. I have put on around 3,000 miles since then. Now I have noticed a new problem. Once the jeep sets over night, on start up the next day,I get a puff of blue smoke. Then everything seems normal. Engine does not seem to burn oil. Any ideas? Never had this before the new head.

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Old 06-06-2014, 11:32 PM   #2
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Blue smoke generally indicates burning oil. Sounds to me like you may have a leaking head gasket.

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Old 06-07-2014, 06:29 AM   #3
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Blue smoke is only for an instant on start up. No smoke after that.
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Old 06-07-2014, 06:59 AM   #4
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1 - Lots of Exhaust Smoke when starting car - Valve Seals Gone Bad

If Smoke from Exhaust appears after you car has been parked for a while this would suggest Bad Valve Seals. Oil has probably dripped into the engine while it was parked. Engines have valves that open and close. The Valves are opened mechanically by pressure being applied to them by a Rocker Arm. They let Gasoline and Air into the Engine. They let Exhaust Gases out of the engine after the Gasoline and Air have been burnt.

The top of the Valves where the pressure is applied are covered in Oil. There are Valve Seals to stop this Oil from coming into the engine. When these Valve Seals wear out, they let the Oil into the engine. Oil going into the engine is then burnt along with the Gasoline and Air creating the Blue Smoke. Usually the car has to sit for a while (such as all day) with the engine not running for the oil to drain into the engine through the worn Valve Seals. Sometimes the smoke will be worse when the car is parked on a slope as this can tilt the engine, making more oil end up at the worn Valve Seals. This causes more oil than usual to end up in the engine and creates more Blue Smoke on starting the engine.

Blue Smoke From Exhaust
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Old 06-07-2014, 08:06 AM   #5

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Dang man .. Bring the jeep back. Blue smoke is never good.
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Old 06-07-2014, 08:17 AM   #6
Join Date: May 2014
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I am with H3 on this one. Sounds like a valve seating issue.
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Old 06-07-2014, 10:01 AM   #7
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I look at it this way; no matter where it came from or why, it ain't normal. I'd not only bring it back to the dealer, I'd call Chrysler and open a case just so it's documented.

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