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Topic Review (Newest First)
Yesterday 07:04 PM
UTJeffC My '12 used to chatter loudly on cold start until I changed the oil. Since then, it has been fairly quiet, but still there if you listen close.

On a side note, I also got my warranty extension letter last week. I'm at 30k miles and have no symptoms. Same mpgs, no new noises, no loss of power.
Yesterday 06:11 PM
gecko4
Quote:
Originally Posted by MichiganUnlimited View Post
OK. That makes me feel better in one way (since it is "normal", means nothing is wrong) but worse in another way (just seems sloppy). So I may drive it for 150k miles like that, and never have an issue? Is there a different oil that I should use to minimize that? I don't know what is in it now, my wife's daily driver, maintained by the dealership.
I just re read your initial post on this topic. Since you have a 2014, you definitely have the updated head already, so it probably won't fail. As far as the oil goes, it's spec'd at 5w20. Your owners manual, I believe, states 5w30 could also be used. Run it by the dealer, so there is no warranty issue, and try the 5w30 next oil change. I'm not sure it will do anything, but it's worth a try.
Make a note of the pitch/amount of clatter with both oils and let us know.
Yesterday 01:14 PM
MichiganUnlimited
Quote:
Originally Posted by gecko4 View Post
You'll have to wait for codes. Believe it or not, the morning rattle is normal for the 3.6
OK. That makes me feel better in one way (since it is "normal", means nothing is wrong) but worse in another way (just seems sloppy).

So I may drive it for 150k miles like that, and never have an issue?

Is there a different oil that I should use to minimize that? I don't know what is in it now, my wife's daily driver, maintained by the dealership.
Yesterday 12:19 PM
gecko4 You'll have to wait for codes. Believe it or not, the morning rattle is normal for the 3.6
Yesterday 11:58 AM
MichiganUnlimited I've got a 2014 JKU, 3.6 and I am hearing a rattle on start ups. We have 15k miles on it. It's not throwing any codes, and otherwise runs well. But man, I hate starting it and hearing about 8-10 clatters for that first second of run time. It does it with every cold start (even if it's 80 degrees outside). If I bring it in will they replace the head, or will I have to wait for codes and/or catastrophic failure?
07-27-2014 09:53 PM
KP50
Quote:
Originally Posted by RockyRiverJeep View Post
Are the letters only going out to people who own Jeep Wranglers with the original AA head and have yet to get the AA head replaced?

I'm curious, is there also a warranty extension for folks who have had the original AA head replaced with the AB or AC head?
The head on this '12 JKU I recently bought used was replaced over a year ago, there was a blue parts tag still stuck to the head with AC suffix and the dealer work order says the part number was the AC head.

I recently got the letter saying the warranty was extended to 10yr/150K for the LH head,
07-27-2014 08:46 PM
TurboRabbit Just got my left cylinder he'd replaced on my 2012 jku. Glad to have it back but disappointed how dirty the tech left my jeep. Antifreeze everywhere and oil down the left side. I cleaned it up so I can check for leaks. Hope this one holds up for me. Don't really notice any huge power gains like others have noted. Also following up on minor issue with the dealer tomorrow. One of the bolt from the air cleaner was just sitting on the hoses... Luck it was still there. Also air box was not secured to the throttle body... Air box just fell off when I was checking filter.
07-26-2014 02:56 PM
gecko4
Quote:
Originally Posted by RockyRiverJeep View Post
There were some early 2013 model year builds that had the non-AC head installed on the engines. If you don't have an AC head, then you were one of them. Chrysler knows this, so don't let a canned e-mail response like that worry you. As far as I understand it, if you have an AA or AB head and the defect rears its head, you will be covered by the warranty extension so long as it happens within 10 years or 150,000 miles, whichever comes first. Anyone who knows different, please advise us.
It would be nice if you could identify the AC head with some certainty. If chrysler put the julian date code in the TSB of the extended warranty, instead of the production date, you could be more certain of what you have. I know there is a julian date of 2062 designating the updated design for a service head.(replacement head) Chrysler did state they built the new design for production engines before they built them for service parts. ( and they caught a lot of flack from dealers for doing so)
07-26-2014 08:29 AM
RockyRiverJeep
Waiting To Hear

Quote:
Originally Posted by Swaybird25 View Post
Will do.
Swaybird25, please report the details of what happened and how it was fixed.
07-26-2014 08:24 AM
RockyRiverJeep What happened with this situation??????????
07-26-2014 08:18 AM
RockyRiverJeep
Warranty

Quote:
Originally Posted by gecko4 View Post
I got it a couple of weeks ago. I was kinda puzzled I got it, so I sent chrysler an email. They really didn't acknowledge the fact that I got the letter, even though I spelled it out. Here is their response:

Thank you for contacting Chrysler Canada Customer Care. We certainly
apologize for the delay with our email response pertaining to your 2013
Jeep Wrangler VIN: 1C4BJWEG1DL5007xx

Please note that Recall Campaign N28 (transmission oil cooler tube) is
outstanding on your vehicle. Please contact your dealer to arrange
completion of this service, at no charge to you.

Recalls and warranty extensions do not generally apply to all Chrysler
vehicles. Our records indicate that your vehicle is not included in the
extended warranty mentioned in your email.

The cylinder heads fall under the 5 years or 100,000km (whichever occurs
first) powertrain warranty.

Thank you for taking the time to write.

Who knows if it's actually covered. I've got the letter, so if it does fail past the warranty, I'll be speaking to the area rep if the warranty is denied. In all probability, I'll likely be trading for my next vehicle by time I hit 100000km anyway.
There were some early 2013 model year builds that had the non-AC head installed on the engines. If you don't have an AC head, then you were one of them. Chrysler knows this, so don't let a canned e-mail response like that worry you.

As far as I understand it, if you have an AA or AB head and the defect rears its head, you will be covered by the warranty extension so long as it happens within 10 years or 150,000 miles, whichever comes first.

Anyone who knows different, please advise us.
07-26-2014 08:05 AM
RockyRiverJeep
Got The Warranty Extension Letter

Quote:
Originally Posted by UnlimitedJ33per View Post
Go to Jeep.com and register your Jeep. I'm not the original owner, registered on there and got my notice as well as recall notices.
As an FYI, I just received the warranty extension letter the other day. I didn't think I'd get one since my driver's side head was replaced with the AC head in June 2013.

Question is, what is the warranty period for folks who had the driver's side head replaced with the AC head?
07-25-2014 07:27 PM
gecko4 I got it a couple of weeks ago. I was kinda puzzled I got it, so I sent chrysler an email. They really didn't acknowledge the fact that I got the letter, even though I spelled it out. Here is their response:

Thank you for contacting Chrysler Canada Customer Care. We certainly
apologize for the delay with our email response pertaining to your 2013
Jeep Wrangler VIN: 1C4BJWEG1DL5007xx

Please note that Recall Campaign N28 (transmission oil cooler tube) is
outstanding on your vehicle. Please contact your dealer to arrange
completion of this service, at no charge to you.

Recalls and warranty extensions do not generally apply to all Chrysler
vehicles. Our records indicate that your vehicle is not included in the
extended warranty mentioned in your email.

The cylinder heads fall under the 5 years or 100,000km (whichever occurs
first) powertrain warranty.

Thank you for taking the time to write.

Who knows if it's actually covered. I've got the letter, so if it does fail past the warranty, I'll be speaking to the area rep if the warranty is denied. In all probability, I'll likely be trading for my next vehicle by time I hit 100000km anyway.
07-25-2014 07:04 PM
Jstraw
Quote:
Originally Posted by gecko4 View Post
My build date is the same, July 27, 2012. I did receive the letter saying my warranty has been extended on the left head. The Julian date on that head is 2022A. My vin ends in 007xx, indicating its one of the first 700 or so built in 2013. By the way your describing your symptoms, sounds like you'll need the head long before the initial factory warranty expires.
When did you get your letter? I have a feeling I won't get one.

Doing more research, my vin ends 801... Now it really sounds like they gave me the "B" head and gave everyone a warranty except me... I really hope this isn't the case.
07-25-2014 06:52 PM
gecko4
Quote:
Originally Posted by Jstraw View Post
Jeep Julian date 1962B

Can somebody help me read this Julian date? I have a feeling that I'm gonna get the screw! my build date on my sticker is July 27th, 2012. My jeep rattles like crazy upon first start... I am losing gas mileage, after the dealer flashed my jeep (1st oil change) my mileage wasn't 23 highway anymore... I drove to Tennessee (700 miles) and averaged 23 mph... Now I can barely hit 17mph hwy and 13 around town. I exhibited concern to the dealer who is changing my oil and they stated it is because I have 4:10's installed. My jeep was recalled to fix the tranny line, since then all I smell is coolant everywhere especially standing in front when it's hot. I have been expressing concern to that dealer and they told me to take it back where I bought it (which is 1.5 hours away).. I feel like I'm getting the run around.

After posting my issues in another part of this forum, I was told Chrysler is extended warranty on suspected head issue vehicles, but it seems the cut-off date is July 25, 2012. That leads me to assume they are acknowledging the AB head is problematic and they stopped putting that head on jeeps on the 25th of July... If my suspicions are right, my Julian date says otherwise.

http://www.wranglerforum.com/attachm.../3/6/_6164.jpg
My build date is the same, July 27, 2012. I did receive the letter saying my warranty has been extended on the left head. The Julian date on that head is 2022A. My vin ends in 007xx, indicating its one of the first 700 or so built in 2013. By the way your describing your symptoms, sounds like you'll need the head long before the initial factory warranty expires.
07-25-2014 05:15 PM
Jstraw Jeep Julian date 1962B

Can somebody help me read this Julian date? I have a feeling that I'm gonna get the screw! my build date on my sticker is July 27th, 2012. My jeep rattles like crazy upon first start... I am losing gas mileage, after the dealer flashed my jeep (1st oil change) my mileage wasn't 23 highway anymore... I drove to Tennessee (700 miles) and averaged 23 mph... Now I can barely hit 17mph hwy and 13 around town. I exhibited concern to the dealer who is changing my oil and they stated it is because I have 4:10's installed. My jeep was recalled to fix the tranny line, since then all I smell is coolant everywhere especially standing in front when it's hot. I have been expressing concern to that dealer and they told me to take it back where I bought it (which is 1.5 hours away).. I feel like I'm getting the run around.

After posting my issues in another part of this forum, I was told Chrysler is extended warranty on suspected head issue vehicles, but it seems the cut-off date is July 25, 2012. That leads me to assume they are acknowledging the AB head is problematic and they stopped putting that head on jeeps on the 25th of July... If my suspicions are right, my Julian date says otherwise.

http://www.wranglerforum.com/attachm.../3/6/_6164.jpg
07-24-2014 04:58 PM
Pressurized
Quote:
Originally Posted by chaphentx View Post
Cylinder head problem - can I drive 75m to dealer?
Yes, but how do you know it's the cylinder head problem? This is not a catastrophic failure and people have thousands of miles on after the light comes on and pops the P0302, etc. Many resets and miles later the light comes on again.
07-24-2014 04:48 PM
chaphentx
Cylinder head problem - can I drive 75m to dealer?

Cylinder head problem - can I drive 75m to dealer?
07-19-2014 10:30 AM
UnlimitedJ33per
Quote:
Originally Posted by RockyRiverJeep View Post
Are the letters only going out to people who own Jeep Wranglers with the original AA head and have yet to get the AA head replaced? I'm curious, is there also a warranty extension for folks who have had the original AA head replaced with the AB or AC head?
Go to Jeep.com and register your Jeep. I'm not the original owner, registered on there and got my notice as well as recall notices.
07-18-2014 09:37 PM
RockyRiverJeep Are the letters only going out to people who own Jeep Wranglers with the original AA head and have yet to get the AA head replaced?

I'm curious, is there also a warranty extension for folks who have had the original AA head replaced with the AB or AC head?
07-17-2014 08:17 PM
gecko4
Quote:
Originally Posted by sobeperry View Post
Just received a letter from Chrysler advising the warranty period of 5 years 50k miles on my 2012 wrangler Sahara unlimited has been extended to 150k miles and 10 years for the for the left cylinder head. There is more detail if anyone is interested.
Sure, what other info did they give you?
07-17-2014 05:54 PM
sobeperry Just received a letter from Chrysler advising the warranty period of 5 years 50k miles on my 2012 wrangler Sahara unlimited has been extended to 150k miles and 10 years for the for the left cylinder head. There is more detail if anyone is interested.
07-16-2014 09:31 PM
demarpaint Thanks and good luck!!
07-16-2014 09:18 PM
Swaybird25 Will do.
07-16-2014 08:37 PM
demarpaint
Quote:
Originally Posted by Swaybird25 View Post
2014 Willys wheeler with 3k miles on it and I already blew a head yesterday!

Let us know what the dealer says.
07-16-2014 08:11 PM
Swaybird25 Drivers side I think #2 piston.
07-16-2014 06:57 PM
gecko4
Quote:
Originally Posted by Swaybird25 View Post
2014 Willys wheeler with 3k miles on it and I already blew a head yesterday!
Which side?
07-16-2014 06:45 PM
Swaybird25 2014 Willys wheeler with 3k miles on it and I already blew a head yesterday!
07-13-2014 12:24 PM
Paprika Thanks!
07-13-2014 11:04 AM
RockyRiverJeep
Drive It

Quote:
Originally Posted by Paprika View Post
By the way, is it safe to drive it until its fixed?
As long as you are not seeing a flashing CEL, you can drive it. If your CEL is related to the failing driver's side head, there is no reason to not drive it until you bring it in to be fixed.

Take the Jeep in to have them run a diagnostic on the CEL. They will likely reset it and wait for it to come on again. If it does, they will run a cylinder leak down test. If the cylinder is failing, it won't pass the test. At that point you'll be scheduled to get a new driver's side head.

Be sure to call Chrysler Customer Care (1-877-426-5337) and report the situation. You'll be given a case number. Give that case # to the dealership. You should receive a rental vehicle. Figure on 1-3 days providing every part needed is in stock.

Make sure the dealership purges the all the air out of the coolant system after re-assembly and checks proper thermostat operation. By now, Chrysler dealerships have replaced many of these heads, particularly on Wranglers, so relax.

Good Luck.
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