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  #25  
Old 08-16-2012, 02:18 PM
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Re: Pentastar head problem reported on autoweek.

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Originally Posted by Daved51 View Post
I have a '11 v6 with 40k and had the head replaced under warrenty. With ~1500 miles on the new head we are heading from the Pacific Northwest to each coast for 3 weeks.
Were there any unusual circumstances that you put the vehicle thru that would have possibly caused it? Chrysler engineers claim that the cause is unusual, as in 1/2 of 1% of all engines, although they're not saying what that is. It would be nice to know what parameters the engineers claim to have to happen for this head to go bad. Me thinks I smell a rat.
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  #26  
Old 08-16-2012, 02:18 PM
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Re: Pentastar head problem reported on autoweek.

Let us know how the fixed engine does and have a safe trip.
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  #27  
Old 08-16-2012, 03:25 PM
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Re: Pentastar head problem reported on autoweek.

Have no doubt there is an internal memo or TSB or instruction sheet or change notice for that "remanufactured" head or a subsequent redesign. Only a matter of time before one or more leaks.
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  #28  
Old 08-16-2012, 04:55 PM
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Re: Pentastar head problem reported on autoweek.

Af far as driving conditions, well mine was an Enterprise rental but I've bought from them more than once and have had good luck. Checked it out throughly of course prior to buying.
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  #29  
Old 08-16-2012, 05:00 PM
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Re: Pentastar head problem reported on autoweek.

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Originally Posted by padgett View Post
Makes sense, P0302 is "Cylinder #2 Misfire Detected". If a cam or crank sensor would expect more than one cyl to be out. Wonder if the "remanufactured" head had a intake ported on #2.

BTW that one seems to result from an RPM change detected by the computer and not a knock sensor (YMMV)

Be interesting to see the factory instruction sheet on replacing the cyl head if anything is modified or something (like the foam isulator on top of the valve cover behind the oil filler tube) is left off.
I will be sure to report on the repair after it is done (I'm even gonna mark the head and block with a paint pen ). I took the engine cover (aka heat trapper) off as soon as bought it.
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  #30  
Old 08-16-2012, 05:18 PM
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Re: Pentastar head problem reported on autoweek.

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Originally Posted by ajs800 View Post
mine goes in tomorrow for either a camshaft sensor issue or maybe this head issue. it's the second time going in for the same camshaft issue which could very well be this problem.
New camshaft Phasers are being replaced tomorrow. No signs of a misfire, so they say. Will follow-up after I get it back and log some miles. Evidently they've replaced many camshaft phasers on the 3.6L.
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  #31  
Old 08-20-2012, 02:04 PM
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Re: Pentastar head problem reported on autoweek.

2012 GC 16000 miles 20 days at dealer.
Told cant locate parts coming from Mexico.
Issue now with customer assistance center at Chrysler.
Good Grief.
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  #32  
Old 08-21-2012, 10:25 AM
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Re: Pentastar head problem reported on autoweek.

My first post here, but add me to the list of the 0.5-1%. My 2011 GC Laredo X lit up the MIL at 19,000 miles a little over a week ago. I've had it just over a year, those are all highway miles with no towing or difficult conditions, other than the high heat this summer in the Northeast. The light went out a week after it came on, but then came back on the next day. This was all during a 1,000 mile trip to OBX. I had it into the dealer today and I got the P0302 diagnosis. The new cylinder head is backordered 7-10 days.
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  #33  
Old 08-21-2012, 01:38 PM
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Re: Pentastar head problem reported on autoweek.

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Originally Posted by 11Durango View Post
...they are replacing the head with a remanufactured one according to the dealer.
...
Tell them you want the new redesigned head. From the article mentioned in the OP:
Quote:
To fix the problem, which Chrysler executives declined to describe fully, the company designed a "more robust" head, which it started manufacturing about six weeks ago.
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  #34  
Old 08-21-2012, 02:36 PM
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Re: Pentastar head problem reported on autoweek.

Wonder what "Measures have been taken to prevent the anomaly" means ?
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  #35  
Old 08-23-2012, 03:31 PM
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Re: Pentastar head problem reported on autoweek.

Hi guys!

Newbie here! I just read up on this issue on the Pentastar. I live in B.C and I have purchased a near new 2012 Laredo in Washington state. I am picking it up in about 10 days. This Laredo will not have any warranty on it since I am importing it from the U.S. The savings was $10,000 but I dont get any warranty. I have purchased many near new vehicles over the last decade and never needed warranty anyway.

Is there a way or a series of vins that might that might shed some light on which engines are having? issues? I havent picked up this GC yet. Any thought or suggestions?

Thanks
Matt
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  #36  
Old 08-24-2012, 07:33 AM
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Re: Pentastar head problem reported on autoweek.

Quote:
Originally Posted by MattE View Post
Hi guys!

Newbie here! I just read up on this issue on the Pentastar. I live in B.C and I have purchased a near new 2012 Laredo in Washington state. I am picking it up in about 10 days. This Laredo will not have any warranty on it since I am importing it from the U.S. The savings was $10,000 but I dont get any warranty. I have purchased many near new vehicles over the last decade and never needed warranty anyway.

Is there a way or a series of vins that might that might shed some light on which engines are having? issues? I havent picked up this GC yet. Any thought or suggestions?

Thanks
Matt
Chrysler has been very non-specific about the issue thus far, only saying that certain conditions cause a problem. There isn't a year or VIN range other than they are currently producing GC with a new design head - so there is a cutoff but it is probably 2013s.

That said - if you live 'up north' and don't tow, I would guess you won't have a problem. It sounds like detonation is burning up valves which requires high heat, lots of strain on the motor, and/or bad gas.
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