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Old 05-25-2013, 09:18 PM   #4921
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Ok. Thanks for the info!

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Old 05-28-2013, 10:40 AM   #4922
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And so the story continues.

After the head replacement on my "13 JKUR, which took "mere" month and a half the engine does not run well. There is an "occasional" urge to stall every x seconds (where x is quite variable, sometimes its every 5 secs, sometimes every 30 secs). Dunno whether they "just" connected something wrongly or whether they messed the head replacement completely, but the car returns to the dealer tomorrow. Yet again!

Now however its clear that my situation is not going to be "as easy" as it was when CEL came on, since there is no code in the ECU. I can hear already now all the bullshit of my dealer, like: "this is perfectly normal", "they all do this", etc...

All I can say is, I am completely and utterly dissapointed by Jeep. I lost all my trust in my car, in Jeep dealers, in Chrysler, Fiat and all the bunch. All I can do is check the local rights regarding the return of the faulty product (I am stationed in Europe)...

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Old 05-28-2013, 10:52 AM   #4923
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Originally Posted by PET77 View Post
And so the story continues.

After the head replacement on my "13 JKUR, which took "mere" month and a half the engine does not run well. There is an "occasional" urge to stall every x seconds (where x is quite variable, sometimes its every 5 secs, sometimes every 30 secs). Dunno whether they "just" connected something wrongly or whether they messed the head replacement completely, but the car returns to the dealer tomorrow. Yet again!

Now however its clear that my situation is not going to be "as easy" as it was when CEL came on, since there is no code in the ECU. I can hear already now all the bullshit of my dealer, like: "this is perfectly normal", "they all do this", etc...

All I can say is, I am completely and utterly dissapointed by Jeep. I lost all my trust in my car, in Jeep dealers, in Chrysler, Fiat and all the bunch. All I can do is check the local rights regarding the return of the faulty product (I am stationed in Europe)...
Sorry to hear man, hopefully it's just something simple that they can fix without having to remove the heads again. Good luck!
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Old 05-28-2013, 10:59 AM   #4924
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Kudos to your service guy for telling you the straight story. I'd buy from a dealer like that over one that claims they have never heard of the tick.

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Originally Posted by Deepjeep1371 View Post
Warning, don't bail on this post, it's got a funny ending!
I got a little odd info at the dealer today..... So here goes, I took the 2012 JKU (Altitude with AA head as far as I can tell May 12 build) in for her 10,000 mile service, you know oil change, 5 wheel rotation (you got to ask for that, btw) and 30 point blah blah blah. Anyway I asked the service dude if they could listen to the engine I said. "it seems a little loud to me on the drivers side"
{back story, if you've ever read any of my posts on this topic I've always said my Jeep sounds like a "sewing machine" I've always maintained that I'm probably doomed like a lot of us are. I was paranoid at first, but that kinda went away. And I just always have been of the mindset that if it happens, it happens and they will fix it. So today was my first real good chance to bring it up to the service guy..... End back story}
So upon paying for my service he showed me on the ticket that the mechanics indicated that the engine sounded normal. He continued and (I'll paraphrase the service guy) ...... "Yeah they almost always throw a code, we've done about 200 heads" "not just wranglers all vehicles with the new motor"
I'm kinda taken back at this point, most times they are downplaying obvious issues and insted this guy is selling me on a problem! The Service guy continued... "they're not really loud usually, but they throw that code, on drivers side #2". I said... "yeah I've read some stuff about it" He went on and this is where it gets almost comical. He said "You want to see if you got a bad one,? run the hell out of it right when you start it up!" "That can cause it to throw the code" Just get in it and run it hard without warm up. " That will usually do it."
I smiled, paid my bill and left kind of puzzled. I'm still actually a bit puzzled. I thought it was odd. No further words right now........
PS It doesn't sound like I'm going to have any issues getting a replacement if that day should come. "Run the hell out of it"
Truly words to live by. Rolf!
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Old 05-28-2013, 11:10 AM   #4925
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Screw that, if it ever happened to me I would swap the head myself. God knows how unqualified these techs are and I sure wouldn't want them screwing around with my engine.
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Old 05-28-2013, 11:59 AM   #4926
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Originally Posted by PET77 View Post
And so the story continues.
All I can say is, I am completely and utterly dissapointed by Jeep. I lost all my trust in my car, in Jeep dealers, in Chrysler, Fiat and all the bunch. All I can do is check the local rights regarding the return of the faulty product (I am stationed in Europe)...
My wife just traded in her 2010 for a Subaru.
Cool factor gone, hopefully the frequent service visits too.
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Old 05-29-2013, 07:04 AM   #4927
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Does the engine run any differently with the new head? Quieter? Smoother? More power?
Let me answer that for you. Yes it will still tick. Because we swap the cams, lifters & roller rockers into the new head. If you ever wonder why some engines have big plastic covers on top of them, this is why. Car makers put covers over engines to insulate against noise, not to make them look pretty.

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Originally Posted by TrueBlueJK
Screw that, if it ever happened to me I would swap the head myself. God knows how unqualified these techs are and I sure wouldn't want them screwing around with my engine.
Good luck with that w/o the special tools that are needed. And the JK is the hardest one to do a 3.6 head on. The minivans are the easiest, I did one in 4hrs yesterday. The Durangos & Grands aren't bad to do either. Chargers & Challengers are a bit more of a pain, but Wranglers are the worst.
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Old 05-29-2013, 07:47 AM   #4928
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^^ Can't even imagine the misery of working on today's technical pile of plastic? F...that, if i was good at it i would be working for myself.Good teck's are rare.
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Old 05-29-2013, 09:29 AM   #4929
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So, I took my Jeep again back to the dealer, we hooked it onto a computer and...

...P0305 - cyl 5 misfire...

Now they are checking what the options are. Whatever they are it means more weeks w/o the car and more mistrust in the car for me. All I can say - Jeep/Chrysler/Fiat sucks!
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Old 05-29-2013, 09:40 AM   #4930
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Had my left head replaced 7000 miles ago with no issues to date. I've pulled trailers, been off road, driven in the mountains, redlined it on the interstate passing some one more than a few times. I don't abuse it, but I don't baby it either.
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Old 05-29-2013, 10:05 AM   #4931
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^^ Can't even imagine the misery of working on today's technical pile of plastic? F...that, if i was good at it i would be working for myself.Good teck's are rare.
Haha exactly. All the "armchair experts " think they can do our job. They fail to realize how complicated vehicles have become. Reason I make what I do its a very specialized field anymore specific to the manufacturer. Basics are the same but the systems all work and are engineered differently. Fuel pressure on our turbo V8 runs at 150 BAR........ and our ECU is water cooled.
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Old 05-29-2013, 10:52 AM   #4932
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Originally Posted by PET77 View Post
So, I took my Jeep again back to the dealer, we hooked it onto a computer and...

...P0305 - cyl 5 misfire...

Now they are checking what the options are. Whatever they are it means more weeks w/o the car and more mistrust in the car for me. All I can say - Jeep/Chrysler/Fiat sucks!
Anybody who finds it just bit over the top, to have the right hand side head fail right after the left hand side was changed?
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Old 05-29-2013, 10:53 AM   #4933
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Originally Posted by PET77 View Post
So, I took my Jeep again back to the dealer, we hooked it onto a computer and...

...P0305 - cyl 5 misfire...

Now they are checking what the options are. Whatever they are it means more weeks w/o the car and more mistrust in the car for me. All I can say - Jeep/Chrysler/Fiat sucks!
That sucks. Problems on both sides (AC/AD).
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Old 05-29-2013, 11:44 AM   #4934
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Originally Posted by crawlin_archer View Post

Good luck with that w/o the special tools that are needed. And the JK is the hardest one to do a 3.6 head on. The minivans are the easiest, I did one in 4hrs yesterday. The Durangos & Grands aren't bad to do either. Chargers & Challengers are a bit more of a pain, but Wranglers are the worst.
Just finished a full turbo swap on my Audi in a one car garage, I don't think swapping heads on a wrangler will be too difficult



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Old 05-29-2013, 12:14 PM   #4935
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Just finished a full turbo swap on my Audi in a one car garage, I don't think swapping heads on a wrangler will be too difficult
In for pics of a full turbo swap on a B6 3.0....... lets see them. Never seen a turbo swap for a 3.0 you use the same K04's and maifolds as a B5 S4?

Moving on...... nothing is too difficult. If you have the right tools and setting up timing on a dual overhead cam motor wkth variable valve timing requires more then a socket set.
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Old 05-29-2013, 12:50 PM   #4936
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In for pics of a full turbo swap on a B6 3.0....... lets see them. Never seen a turbo swap for a 3.0 you use the same K04's and maifolds as a B5 S4?

Moving on...... nothing is too difficult. If you have the right tools and setting up timing on a dual overhead cam motor wkth variable valve timing requires more then a socket set.
My A6 actually has the 2.7 motor, I just upgraded to k04's and did a bunch of other stuff, final hp number was 420 to the wheels. What kind of timing setup does the pentastar have?
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Old 05-29-2013, 01:21 PM   #4937
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Nice. Thats a great car. I couldn't tell from my mobile if it was a C5 or B6 from the pictures. Hahaha i thought you were trying to bullshit us! You do the All Road throttle? What fueling? I always prefered AWE. That's a monster. Tell me you have one of th few 2.7 C5's with a manual. 10 odd years on and the 2.7 is still king. Look jnto 2.8 cams they have the same profile spec as RS4 cams. I have a friend running garrett ballbearings on a 2.8 swap. That thing did like 590 awtq on 100 oct and meth.
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Old 05-29-2013, 01:29 PM   #4938
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I don't want to over thread jack lol Here is my build (and yes it's a six speed )
click me
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Old 05-30-2013, 10:13 AM   #4939
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Does the engine run any differently with the new head? Quieter? Smoother? More power?
I don't see, hear or feel any difference. Never did get the ticking.
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Old 05-30-2013, 10:14 AM   #4940
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Build date?
Nov. 11.
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Old 05-30-2013, 10:49 AM   #4941
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Anybody who finds it just bit over the top, to have the right hand side head fail right after the left hand side was changed?
Pet77:

Just to be clear: You have a 2013 with a head replacement?!?!

That is the first I have heard of that...

Do you know if you have AB or AC head?
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Old 05-30-2013, 11:42 AM   #4942
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Pet77:

Just to be clear: You have a 2013 with a head replacement?!?!

That is the first I have heard of that...

Do you know if you have AB or AC head?
His is AC. Since both misfired, he might have a separate issue going on.
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Old 05-30-2013, 11:50 AM   #4943
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His is AC. Since both misfired, he might have a separate issue going on.

PET77's is original (failed) head was an AB, according to his first post:

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...
I have 13" JKUR (made in September 12") and at 3730mls i have cyl 6 misfire. ...

... I have seen my passenger head number ends with AB...
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Old 05-30-2013, 11:56 AM   #4944
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PET77's is original (failed) head was an AB, according to his first post:
Hmm. I remembered it as AC. I think he was the one that thought the sticker on the valve cover was the head part number (which ends in AB). He also mentions passenger side. There is no AB stamp on the head, it's just a build date. September should be enough to get him the AC head, which was introduced in mid-July.
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Old 05-30-2013, 03:10 PM   #4945
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Hmm. I remembered it as AC. I think he was the one that thought the sticker on the valve cover was the head part number (which ends in AB). He also mentions passenger side. There is no AB stamp on the head, it's just a build date. September should be enough to get him the AC head, which was introduced in mid-July.
You're probably right about that..... No way to really know now that the head is gone....

I guess I should stop wishing that my EARLY AA head (1891A) would give it up already so I can just get an AC head?
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Old 05-30-2013, 04:13 PM   #4946
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Anyone seen anything on any other forums regarding people having AC heads fail? I wonder if any changes will be implemented for the 2014's.
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Old 05-30-2013, 06:08 PM   #4947
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Anyone seen anything on any other forums regarding people having AC heads fail? I wonder if any changes will be implemented for the 2014's.
Your guess is as good as any. I sure hope by 2014 they've nailed it.
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Old 05-31-2013, 03:14 AM   #4948
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PET77's is original (failed) head was an AB, according to his first post:
That was just an error on my part - put up first number i saw on my engine, before fully realising, what number means what. Anyhow, as the Julian date shown later, I already had the latest head revision...

The problem is, if the latest head revision can fail as well, what is the cause of it? They changed my left head and now they may change the right one too, but whats the point if the real "fault" hasnt been addressed - they will fail again and I just dont know when or what to do to prevent it...
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Old 05-31-2013, 03:45 AM   #4949
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I just dont know when or what to do to prevent it...
It is pretty clear it is a design issue, and they can't seem to get it right. There is nothing you can do to prevent it unfortunately. I wonder if this is going to spill over to 2014.
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Old 05-31-2013, 12:46 PM   #4950
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Bad Cylinder Head

Ok so I dropped off my 2012 Rubicon first thing Tuesday, 5/28/13, for a scheduled cylinder head replacement. It is now Friday, 5/31/13 and I just got off the phone with them to say he should be taking it out for a test drive soon. Does it take this long usually? Does anyone know what Jeep gives for a time for Cylinder head replacement? I know it sounds like I'm complaining, which I am a little, but I'm curious.

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