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Old 06-28-2013, 08:24 AM   #5161
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Originally Posted by bignanoman View Post

The original video on this nailed it, but I didn't realize it until after the head change. All the 3.6's sound like a sewing machine with 24 valves slapping around in a plastic engine, what would you expect. The difference to me was a one out of 12 cadence of a tick twice as loud as the others, exactly as in the video on the drivers side. tik tik tik tik tik tik TICK tik tik tik tik tik. Dealer kept telling me the noise was normal injector noise (The big Lie) until CEL came on. Then new head, no more TICK.
That makes sense

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Old 06-28-2013, 07:13 PM   #5162
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Contacted Jeep today and I got an email back saying that they have analysed the warranty data a find that there is NO problem with the 2012 Wrangler head or head components. Sounds like Obama to me, but mine was made on 12/16/11 so hopefully no problem

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Old 06-28-2013, 08:15 PM   #5163
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Contacted Jeep today and I got an email back saying that they have analysed the warranty data a find that there is NO problem with the 2012 Wrangler head or head components. Sounds like Obama to me, but mine was made on 12/16/11 so hopefully no problem
I guess all the cylender heads they are replacing are a figment of our imagination....

I really wish someone other than chrysler made jeep.
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Old 06-29-2013, 08:49 PM   #5165
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Contacted Jeep today and I got an email back saying that they have analysed the warranty data a find that there is NO problem with the 2012 Wrangler head or head components. Sounds like Obama to me, but mine was made on 12/16/11 so hopefully no problem
Mine was built 12/2011 as well. I'm under the impression that most if not all heads manufactured at that time are defective. Mine ticks the same at 7k as it did when new and still no CEL, then again it rarely sees 2500+ rpm because it gets less than 14mpg as it is. I'm guessing the CEL will come right after the warranty expires...that'll be my reward for driving with a light foot .
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Old 06-30-2013, 06:43 AM   #5166
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Makes me wonder if we should have a post for case numbers at Chrysler involving this problem. That way others could reference them when they get the problem. This email I got was carefully worded and appeared to be one that came from someone higher up in the Chrysler food chain than the customer service rep.
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Old 06-30-2013, 07:18 PM   #5167
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Bought 2012 JK in February, 2012. Developed loud clattering on cold start sometimes and others not. Definitely drivers side only. Over time the drivers side valve train was noisy after driving for a time. I use the vehicle only once in a while so I now have only about 3500 miles. Got rear ended on freeway and only rear bumper damaged in spite of Pontiac Sunbird being totaled when he clobbered me. Decided to have the dealer who sold me vehicle attend to bumper repairs and I mentioned clattering noise and played a video of start up and running noises. Technicians said I was 1 quart low and that was why the noise came from head. I mentioned that they changed the oil about 1000 miles previous to my visit. I told them that either I burned a quart in 100 miles on an engine that was virtually factory new or perhaps they did not put in the proper amount after the change or perhaps there was a leak. Since I check the oil every drive and you can eat off the engine I threw the BS flag. Drove six miles home, recorded loud noises and drove back and played them the video. Several days later I drove home after they replaced the lifters on affected side. Once again I recorded the clattering at home and dropped off the vehicle. A week or so later I have the new head and she purrs like a baby kitten! Thanks to you folks and my endless patience I'm smiling in my Jeep once again. Sooooooooo......my question is do you folks think I should get an extension to my warranty since they performed some major surgery and they may not exactly be brain surgeons???
Thanks!
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Old 06-30-2013, 07:20 PM   #5168
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Meant to say 1 quart in 1000 miles!
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Old 06-30-2013, 11:03 PM   #5169
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Old 07-01-2013, 06:53 PM   #5170
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See Note 2.
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Old 07-01-2013, 09:21 PM   #5171
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Dropped my 2013 JKU off Saturday, it's got 10k miles, needs new water pump and they said it dropped two valves, WTF?!?
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Old 07-02-2013, 04:59 AM   #5172
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Sooooooooo......my question is do you folks think I should get an extension to my warranty since they performed some major surgery and they may not exactly be brain surgeons???
Thanks!
I'm not fan of extended warranties, they are a major cash cow for dealers, and IMO opinion the money can be better spent somewhere else. In the case of 2012 Wranglers, and for someone like you who doesn't pile on the miles, if you plan on keeping the Jeep "forever", it might be worth it if you can get it at a good price. JMO
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Old 07-02-2013, 03:35 PM   #5173
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I have followed this thread since it was started. My 2012 was built April 2012. It has ticked since it had about 2,500 miles on it. It now has 9,500 miles on it. My gas mileage from day one was around 15 MPG. Over the last 7,000 miles it has not been above 13 MPG. I'm leaving for vacation for a week this Sunday. I'm dropping it off at the dealership tomorrow. No CEL yet. They will be replacing the drivers side head. I will update when I get her back. Hopefully this will quiet her down and give me better gas mileage.
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Old 07-02-2013, 03:49 PM   #5174
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I have followed this thread since it was started. My 2012 was built April 2012. It has ticked since it had about 2,500 miles on it. It now has 9,500 miles on it. My gas mileage from day one was around 15 MPG. Over the last 7,000 miles it has not been above 13 MPG. I'm leaving for vacation for a week this Sunday. I'm dropping it off at the dealership tomorrow. No CEL yet. They will be replacing the drivers side head. I will update when I get her back. Hopefully this will quiet her down and give me better gas mileage.
They didn't give you any beef about "No cel light"?
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Old 07-02-2013, 06:56 PM   #5175
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Thumbs down

I have a 2012 JKUR manufactured in April of 2012, which I purchased in May of the same year. I have always had a loud ticking sound out of the drivers side of the engine.

Side note:
I am a classically trained musician and have been recording music for many years... to my trained ears the ticking was getting louder for the past year. Also my milage dropped from 20.5 to 18.5 MPG earlier this year.

Anyway...

I have been keeping up on this thread since shortly after I got my jeep, hence I knew the response I would probably receive if I complained about the ticking. So naturally I decided to wait as long as possible before bringing it up.

2 months ago, before leaving my jeep at my local dealership for an oil change, I finally reported a loud tick coming from the left side of the engine. Of course I got the canned response from the mechanic that the sound was normal.

Well today on my way to work I got the CEL (16500 miles). My wife was kind enough to exchange vehicles with me and she drove the jeep in to the dealer.

Low and behold the dealership just notified her that there is a misfire on cylinder #6 and they are doing a leak down test.
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Old 07-02-2013, 07:11 PM   #5176
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I take no pleasure in being right but I was more or less called a "Chicken Little" a year ago when I expressed my fears that ALL 2012s would need head replacements sooner or later and traded-in my Jeep before it became common knowledge that there was a problem with the head design.

When they came out with the AB heads, that should have told us that all the AA heads would eventually fail since they all shared the same design. In other words, it wasn't because of a bad run of parts but because the design itself was bad.

Then when the AB heads started failing, we knew that Chrysler still did not have a true fix.

I sure hope for the sake of all who own Wranglers with the 3.6 L Pentastar that the AC head is a true fix.

Tomster

I'm still a Jeep lover and hope to have another one some day, but not for a daily driver like my last one.
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Old 07-02-2013, 07:18 PM   #5177
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I take no pleasure in being right.....
Sure you do. Otherwise you wouldn't be on here saying I told you so instead of displaying some sort of human characteristic such as oh say.... empathy??? Your posts come across as very condescending and childish.

You are not adding value of any sort.
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Old 07-02-2013, 07:21 PM   #5178
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19,285 miles on my 2012, bought last year, almost to the day. No issues..
3'' list, 33'' tires. Driven on the beach, wheel it once in a while. Running great.
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Old 07-02-2013, 08:28 PM   #5179
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Sure you do. Otherwise you wouldn't be on here saying I told you so instead of displaying some sort of human characteristic such as oh say.... empathy??? Your posts come across as very condescending and childish.

You are not adding value of any sort.
Did you miss the part where I said I hope the AC head is a true fix for the sake of all 2012 owners? That doesn't sound like empathy to you?

Sorry if I offended anyone. That was not my intent.

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Old 07-02-2013, 08:28 PM   #5180
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Looks like what I said before is coming true: **ALL** 2012 heads are defective. The big question is how many will get replaced before warranty expiration? That's all Chrysler cares about so for those of you with heads that have, so far, been OK, I wish you the best of luck!
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Old 07-02-2013, 09:16 PM   #5181
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Dropped my 2013 JKU off Saturday, it's got 10k miles, needs new water pump and they said it dropped two valves, WTF?!?
Update: Got a call today from the service department, not dropped valves, but driver's side head is being replaced. Build date is July 2012, head #2032B. Never got a CEL. Wasn't able to get a lot of details from the guy on the phone, but hopefully I'll get a chance to talk to the tech and get an accurate description of the reason for the replacement(besides the ticking).
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Old 07-03-2013, 06:28 AM   #5182
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Update: Got a call today from the service department, not dropped valves, but driver's side head is being replaced. Build date is July 2012, head #2032B. Never got a CEL. Wasn't able to get a lot of details from the guy on the phone, but hopefully I'll get a chance to talk to the tech and get an accurate description of the reason for the replacement(besides the ticking).

I guess some of the early 2013's didn't get the AC head, or got engines from late 2012 with the older heads? It appears the problem carried over to early 2013.
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Old 07-03-2013, 01:33 PM   #5183
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Build Date Switch?

I have read more of this thread than I care to admit. I plan on looking at an Unlimited tomorrow with my fiance (a 2013). Is there a time when AC's started becoming the head installed from the factory? This way I can check the build date on the door. If not, will the dealer check what head it has? Thanks.
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Old 07-03-2013, 02:35 PM   #5184
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Contacted Jeep today and I got an email back saying that they have analysed the warranty data a find that there is NO problem with the 2012 Wrangler head or head components. Sounds like Obama to me, but mine was made on 12/16/11 so hopefully no problem
Why would you expect a corporation to put in writing that there is a problem with 2012 heads and head components? I mean, come on people, let's use a little common sense here.

29000 on my 2012.... CEL came on a few months ago. Head was replaced, that's what warranties are for.
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Old 07-03-2013, 02:43 PM   #5185
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Mine (on the 12) was replaced around 27K. It's got 47K on it now. No issues. Bought two 13's, not the least bit concerned.
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Old 07-03-2013, 02:44 PM   #5186
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I take no pleasure in being right but I was more or less called a "Chicken Little" a year ago when I expressed my fears that ALL 2012s would need head replacements sooner or later and traded-in my Jeep before it became common knowledge that there was a problem with the head design.

When they came out with the AB heads, that should have told us that all the AA heads would eventually fail since they all shared the same design. In other words, it wasn't because of a bad run of parts but because the design itself was bad.

Then when the AB heads started failing, we knew that Chrysler still did not have a true fix.

I sure hope for the sake of all who own Wranglers with the 3.6 L Pentastar that the AC head is a true fix.

Tomster

I'm still a Jeep lover and hope to have another one some day, but not for a daily driver like my last one.


Have had my 2012 for 20 months, 29000 miles. My CEL/head replacement took at most 2 hours of my time, and required me to drive a Chrysler 200 for 3 days. Not the worst thing in the world..... It's a problem, but Chrysler is fixing it. Obviously you felt it wasn't worth going through with the Jeep, which is your decision. But I do feel some on here are making too much of the issue.
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Old 07-03-2013, 10:01 PM   #5187
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I have read more of this thread than I care to admit. I plan on looking at an Unlimited tomorrow with my fiance (a 2013). Is there a time when AC's started becoming the head installed from the factory? This way I can check the build date on the door. If not, will the dealer check what head it has? Thanks.
I learned on this forum or another(can't remember exactly) the code is stamped on the head. There is a date(in Julian format) and supposedly dates >2062 are AC heads. Based on that info, mine was built 3 days short of the switch to the AC. But like I said, I learned this from a forum so who really knows when the switch actually occurred. All I know for sure is mine was a 2032POS.
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Old 07-03-2013, 10:19 PM   #5188
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Old 07-03-2013, 10:42 PM   #5189
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Thanks Bill. (it's easier for me to maintain similar vehicles so part of it is laziness - same pads and rotors, air filters....)
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Old 07-04-2013, 07:05 AM   #5190
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You are right, major repairs are really just a minor inconvenience when done under warranty. However, 5 years go by pretty fast...

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