Update on ticking Pentastar..new head... - Page 161 - Jeep Wrangler Forum

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Old 05-08-2013, 05:32 PM   #4801
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Even if the CEL is out if its seen it as a hard code it will store it. I'm running a trail this weekend and next week I'm going to dump it off. This noise is getting ridiculous cel or not. I have to change the oil too and want to swap to synthetic but I know when they do the head they are supposed to change the oil anyway and I don't want to waste the oil since I will have to refill it with synthetic again when I get it back.
My oil was covered under warranty when the head was changed. They upgraded to synthetic for $20.

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Old 05-08-2013, 06:03 PM   #4802
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I had just changed the oil and at first I thought it was just lifter noise after an oil change. Two days later I lifted the hood and listened and it was still there. So I talked to the mechanic at the Dealership where I bought my JK and told him that I was hearing a ticking noise on the drivers side of the engine...his response to me was.."You on the forum's again"? I was pissed to say the least, and what makes it bad is my wife works at this dealership...so it has to go in next week for an unrelated issue and I will have it checked again.

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Old 05-08-2013, 06:20 PM   #4803
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I had just changed the oil and at first I thought it was just lifter noise after an oil change. Two days later I lifted the hood and listened and it was still there. So I talked to the mechanic at the Dealership where I bought my JK and told him that I was hearing a ticking noise on the drivers side of the engine...his response to me was.."You on the forum's again"? I was pissed to say the least, and what makes it bad is my wife works at this dealership...so it has to go in next week for an unrelated issue and I will have it checked again.
How rude. I just don't understand how any dealership could be flippant about a well known, major engine problem on a customer's new $30K+ vehicle. Sorry, that mechanic sounds like a dong.
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Old 05-08-2013, 07:18 PM   #4804
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This keeps arousing my curiosity. Member A goes to his/her dealer for tick and dealer says "no problem, we keep heads in stock". Member B goes to their dealer and is told something like "heads are on back order, it will be a few weeks before we get one".

How can one dealer have extras and yet another dealer claims there is a shortage?
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Old 05-08-2013, 07:40 PM   #4805
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This keeps arousing my curiosity. Member A goes to his/her dealer for tick and dealer says "no problem, we keep heads in stock". Member B goes to their dealer and is told something like "heads are on back order, it will be a few weeks before we get one".

How can one dealer have extras and yet another dealer claims there is a shortage?
Easy. If the parts are hard to get and a dealer knows they are going to do a bunch of heads, they get them when they can and won't give them up. Dealer makes more doing the job then making cost plus 10% sending it to another dealer. We do it all the time at BMW. part is on backorder but we ordered 10 a month before.
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Old 05-08-2013, 07:48 PM   #4806
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Easy. If the parts are hard to get and a dealer knows they are going to do a bunch of heads, they get them when they can and won't give them up. Dealer makes more doing the job then making cost plus 10% sending it to another dealer. We do it all the time at BMW. part is on backorder but we ordered 10 a month before.
I would believe this except......Chrysler has a policy of shifting parts from dealer to dealer to meet demand. I experienced this firsthand.
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Old 05-11-2013, 06:34 AM   #4807
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OK, so I decided to do a little looking on the forum for bad cylinder head and BOOM, there's a lot here! So I went to the dealer yesterday due to check engine light on and I asked the tech when he was done what was wrong. He said "Bad cylinder head, needs to be replace. We see a lot of these, kind of common. After we replace them with the new ones, so far, we haven't had anyone come back." He seemed truthful. I figured I'd get a more truthful answer from him rather than counter guy or my salesman who I saw who said "I'm sure it's nothing, they'll get rid of it." So needless to say I have an appointment for May 28th to have it replaced. My big question is why isn't there a recall and or what constitutes a recall. MFG date is 8/11 and the code that was read was P0302. Anything I should look out for that can help me would be much appreciated.
A fellow LI'er! Chrysler sort of lucked out, the ticking head is not considered a safety issue [yet], and probably won't be. If it was considered a safety issue they'd have to recall them, that would put a real hurt on Chrysler's bottom line.

I've been following this thread closely since it started. I don't think the AC head fixed the issue, if it did we'd have heard about it from our long time resident insiders. It's their silence, and the two 2013's that showed up with the problem that give me reason to believe the problem is still looming. Either that or they have more engines stock piled with AB heads than I thought that were tossed into the early 2013 builds. All we can do is guess.
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Old 05-11-2013, 08:07 AM   #4808
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I guess the good news is the problem at least seems better. There have been a few reports of 13's having issues. Not many though. How many reports were there this time last year of 12's having issues? I am guessing a lot more.
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Old 05-11-2013, 11:09 AM   #4809
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I guess the good news is the problem at least seems better. There have been a few reports of 13's having issues. Not many though. How many reports were there this time last year of 12's having issues? I am guessing a lot more.
First reported head issue/replacement on WF was in late January 2012 by member sandbaja. Shortly after, the dam broke, and lots of members with 2012s joined the Pentastar head replacement club.
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Old 05-11-2013, 11:22 AM   #4810
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Has ANYONE who knows for a fact that he had an AC revision head on the driver's side had a failure with it?
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Old 05-11-2013, 06:56 PM   #4811
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Has ANYONE who knows for a fact that he had an AC revision head on the driver's side had a failure with it?
Hey Tom how's things?
If the "he" you're referring to is PET77, he was told he had the latest head. I have a feeling he had an early build 2013 with an engine that might have been a 2012 engine with an AB head. I realize they don't keep a very large inventory, but trust me those engines are the most popular engine Chrysler has and they are not going to hold up an assembly line because they don't have enough engines. I'd be willing to bet they have a fairly large stock pile of them, possibly a few months worth. Having said all of that all we can do is guess since we are getting no guidance from Chrysler. I'd love to know for sure what head he has, there's always the change the dealer was BS-ing him too.
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Old 05-12-2013, 07:42 AM   #4812
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Hey Tom how's things?
If the "he" you're referring to is PET77, he was told he had the latest head. I have a feeling he had an early build 2013 with an engine that might have been a 2012 engine with an AB head. I realize they don't keep a very large inventory, but trust me those engines are the most popular engine Chrysler has and they are not going to hold up an assembly line because they don't have enough engines. I'd be willing to bet they have a fairly large stock pile of them, possibly a few months worth. Having said all of that all we can do is guess since we are getting no guidance from Chrysler. I'd love to know for sure what head he has, there's always the change the dealer was BS-ing him too.
Hey, Frank.

I wasn't referring to anyone in particular. I was just wondering if anyone out there knows for a fact that he has had a failure with an AC head.

Tom
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Old 05-12-2013, 08:03 AM   #4813
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Hey, Frank.

I wasn't referring to anyone in particular. I was just wondering if anyone out there knows for a fact that he has had a failure with an AC head.

Tom
That would be good to know, for sure though, not a hunch or guess.
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Old 05-12-2013, 10:29 AM   #4814
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Sweet baby Jesus. My engine Julian date is 18712 so I am on the B head? Has it failed anyone here? Bought a deal on a left over 12 and I knew I should not have come in here lol.
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Old 05-12-2013, 10:56 AM   #4815
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Sweet baby Jesus. My engine Julian date is 18712 so I am on the B head? Has it failed anyone here? Bought a deal on a left over 12 and I knew I should not have come in here lol.
You should probably check the number on the head itself to know for sure if you have an AA, AB, or AC head.
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Old 05-12-2013, 11:04 AM   #4816
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That is the number on the head.
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Old 05-12-2013, 11:24 AM   #4817
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The number should end with a letter. For example 2392B. If you number is 1871 and a letter, your head was made on day 187 of 2011.
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Old 05-12-2013, 11:37 AM   #4818
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That is the number on the head.
you need the other number on the head
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Old 05-12-2013, 12:23 PM   #4819
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1872A is it, typo and old eyes I guess. So I have A?
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Old 05-12-2013, 12:57 PM   #4820
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Day 187 of 2012 would be 5 July 2012.
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Old 05-12-2013, 01:04 PM   #4821
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1872A is it, typo and old eyes I guess. So I have A?
appears that way.
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Old 05-12-2013, 01:48 PM   #4822
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appears that way.
Meh, still love my Dozer. I will deal with it if it ever happens.
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Old 05-12-2013, 02:55 PM   #4823
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Meh, still love my Dozer. I will deal with it if it ever happens.
I would not worry either as chances are you will never have a problem and in the rare chance that you do it will get taken care of.
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Old 05-12-2013, 04:34 PM   #4824
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I have a 2012 Sahara, early build with aa head. does anyone what percent of heads are being replaced? I only drive about 6000/yr. I would hate for it to go bad after warranty.
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Old 05-12-2013, 04:56 PM   #4825
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I have a 2012 Sahara, early build with aa head. does anyone what percent of heads are being replaced? I only drive about 6000/yr. I would hate for it to go bad after warranty.
I think Chrysler says like 2% it is a low number, I know reading these forums you would be lead to believe it is a 98% failure rate but that has not been the case. On the outside chance it goes bad out of warranty it is not a difficult or overly expensive job to replace a cylinder head.
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Old 05-13-2013, 06:33 AM   #4826
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I dont have the Julian date of my old head right now, but while visiting dealer he reconfirmed, that it indeed was the latest revision. Finally he has got a new head too. Will post some pics later. From what I can tell, the only difference to the old one (apart from the Julian date) is the so called "cast" number. Old head was 16B, new one is 22B - whatever that means.

Just a remark - not everything is well yet. They finally got the head, but the gasket got misplaced, so I am still waiting patiently...
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Old 05-13-2013, 12:12 PM   #4827
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Interesting. Please keep us posted, PET77. I hope this is not a sign of things to come.
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Old 05-13-2013, 03:53 PM   #4828
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So here as some pics of the head I am about to receive:





its Julian date is 0543A - aka 23.2.2013. Will try to get the old head J.date too...
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Old 05-13-2013, 05:00 PM   #4829
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Keep in mind that a large number, probably 90%, of the 'A' heads will fail before the end of the vehicle's life. Chrysler's 1%-2% claim is only based on the initial warranty period that actually affects Chrysler. True, only 1%-2% will fail within that time period. The rest will fail later on.

Though your head may not immediately break, they are all 'living on the edge' and any day could be your day. Try to get it fixed!
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Old 05-13-2013, 05:08 PM   #4830
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I dont have the Julian date of my old head right now, but while visiting dealer he reconfirmed, that it indeed was the latest revision. Finally he has got a new head too. Will post some pics later. From what I can tell, the only difference to the old one (apart from the Julian date) is the so called "cast" number. Old head was 16B, new one is 22B - whatever that means.

Just a remark - not everything is well yet. They finally got the head, but the gasket got misplaced, so I am still waiting patiently...
PET77

I asked this before but got no answer.....Wasn't your issue with a stuck intake valve and not bad exhaust seats? I need to go back and look but I'm pretty sure the valve seats were not the issue with your 2013 "AC" cylinder head

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