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Old 11-04-2013, 06:22 PM
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Cylinder head Problems

Anyone have any problems with their cylinder head on the 3.6L Pentastar ?
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Old 11-04-2013, 06:43 PM
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Re: Cylinder head Problems

What year?
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Old 11-04-2013, 06:49 PM
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Re: Cylinder head Problems

2011-2013 All models with the #.6 Pentastar
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Old 11-04-2013, 06:53 PM
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Re: Cylinder head Problems

it was mostly 2011 with the Jeeps and durangos...some 12-13 for the wrangler guys. I guess there was a bad batch of heads that got out. The dealer will replace with the correct head and youll be good as new.
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Old 11-04-2013, 06:55 PM
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Re: Cylinder head Problems

I believe those were all subject to a recall/TSB and should have been fixed by now...

IIRC it was a casting problem ( I want to say in Mexico but am not sure )
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Old 11-04-2013, 07:11 PM
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Re: Cylinder head Problems

I don't think there was a recall. I have a 2011 GC with 28k. No problems yet but I am concerned. Any idea how I can tell if I have one with the bad head? It was manufactured August 2010.
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Old 11-08-2013, 07:52 PM
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Re: Cylinder head Problems

Yes. Taking my 2012 3.6 in on Monday for head replacement on cylinder 2. The check engine light came on two days ago, stayed on until this morning. I took it into the shop and came up with code P0302 which is a misfire. Only have 32k on my jeep.
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Old 11-09-2013, 12:14 AM
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Quote:
Originally Posted by DirtyMark View Post
Yes. Taking my 2012 3.6 in on Monday for head replacement on cylinder 2. The check engine light came on two days ago, stayed on until this morning. I took it into the shop and came up with code P0302 which is a misfire. Only have 32k on my jeep.
Just took mine in. It did the same thing. CEL came on on Tuesday and went out on Friday. Checked again with my OBD 2 scanner and there is a pending code for P0302. So now I have a stored code and a pending one. Dealer said they have to check it first and then give me their diagnosis. I guess this is one of the first JGC's to have this problem here in Bahrain.
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Old 03-17-2014, 11:53 AM
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Re: Cylinder head Problems

Got my 2012 GC cylinder head replaced also last week. Same code, while they were at it they found a coolant leak.
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Old 03-17-2014, 01:54 PM
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Had mine replaced about two months agoon a 2011 Grand Cherokee v-6. Only 20k on engine. Dealer picked up everything including rental car.
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Old 03-18-2014, 08:20 AM
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Re: Cylinder head Problems

3+ years and over 40,000 miles. So far no cylinder head issues (or any issues).
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