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Old 10-25-2012, 11:41 PM   #3151
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Picked up at dealer on Monday 10-22 back at dealer on Tuesday

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Old 10-25-2012, 11:45 PM   #3152
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Picked up at dealer on Monday 10-22 back at dealer on Tuesday

We need a part number for the head from your repair order.

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Old 10-25-2012, 11:45 PM   #3153
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Picked up at dealer on Monday 10-22 back at dealer on Tuesday
that is very very unfortunate. Can you tell us the head part number on the repair sheet?
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Old 10-25-2012, 11:49 PM   #3154
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hell with it being that quick I would think an install problem is likely.
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Old 10-25-2012, 11:51 PM   #3155
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First time it was the #2 cyl. now it the #4 cyl. Also at first I was given a Toyota rental car but then was told the next day to bring back for a chrysler product. They said Chrysler would only pay for a Chrysler product rental on warranty work.
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Old 10-25-2012, 11:56 PM   #3156
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that is very very unfortunate. Can you tell us the head part number on the repair sheet?
X2

Geez, 35 miles?
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Old 10-26-2012, 12:03 AM   #3157
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hell with it being that quick I would think an install problem is likely.
Chrysler made the dealer pull the head and prove it was not an install problem before they would send another head. It only took one day for the first head to get to the dealer. I got to look at the second head to fail and it was not sealing on one of the exhaust valves on the #4 cylinder. Sorry, I don't have numbers off the head ( not listed on the warranty paper work)
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Old 10-26-2012, 12:08 AM   #3158
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Chrysler made the dealer pull the head and prove it was not an install problem before they would send another head. It only took one day for the first head to get to the dealer. I got to look at the second head to fail and it was not sealing on one of the exhaust valves on the #4 cylinder. Sorry, I don't have numbers off the head ( not listed on the warranty paper work)
i don't want to doubt you or anything but everything that goes in the jeep, including oil, has a part number. Some dealerships arent quite thorough i guess. How could you tell it wasn't seated? You might be one of the few that has actually seen the head
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Old 10-26-2012, 12:22 AM   #3159
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i don't want to doubt you or anything but everything that goes in the jeep, including oil, has a part number. Some dealerships arent quite thorough i guess. How could you tell it wasn't seated? You might be one of the few that has actually seen the head
With head setting on it's side on the workbench water was poured into the exhaust ports water leaked out of one of the valve on the #4 cylinder. The head was pulled because of a bad compression rearing
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Old 10-26-2012, 12:28 AM   #3160
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With head setting on it's side on the workbench water was poured into the exhaust ports water leaked out of one of the valve on the #4 cylinder. The head was pulled because of a bad compression rearing
cool. Not for you. But it's interesting. This one has to be a manufacturing defect given the mileage on it. Thanks for the info and good luck.
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Old 10-26-2012, 12:31 AM   #3161
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so if this is a designe flaw it will show up eventually in all jeeps? Or was this just a bad batch of production?
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Old 10-26-2012, 01:02 AM   #3162
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Man I just checked my parts sheet and I see cylinder head 68051212AB.
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Old 10-26-2012, 08:07 AM   #3163
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Man I just checked my parts sheet and I see cylinder head 68051212AB.
Man o man sorry to hear that.. See that is what im nervous about.. Infact I had an appointment today at 8am.. and I cancelled it.. partly because I think the ticking is in my head. I watched a few of the videos on here and compared them to mine..and Blastek's video after his head replacement.. his passenger side sounds like my drivers side and vice versa.. I have decided to wait until CEL pops up or any other obvious mechanical problems arise because of it. Now Im listening to every vehicle run.. tick tick tick tick.. My wifes New CRV needs a head replacement too.!!!
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Old 10-26-2012, 08:08 AM   #3164
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With head setting on it's side on the workbench water was poured into the exhaust ports water leaked out of one of the valve on the #4 cylinder. The head was pulled because of a bad compression rearing
If you can, please try and get the part #. I dont understand how the part # is not listed on the repair order. I've been in the auto repair industry for over 25 years and I've never seen a dealer do work without a parts list and part #'s. It's very important to know if this was an ab or ac head.
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Old 10-26-2012, 08:17 AM   #3165
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Man o man sorry to hear that.. See that is what im nervous about.. Infact I had an appointment today at 8am.. and I cancelled it.. partly because I think the ticking is in my head. I watched a few of the videos on here and compared them to mine..and Blastek's video after his head replacement.. his passenger side sounds like my drivers side and vice versa.. I have decided to wait until CEL pops up or any other obvious mechanical problems arise because of it. Now Im listening to every vehicle run.. tick tick tick tick.. My wifes New CRV needs a head replacement too.!!!
I'll say this........ the injectors on the Jeep are really noisy ! I was surprised at how loud they were when I pulled off the engine cover. I could see how some people would confuse the injector ticking with valve or lifter ticking.
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Old 10-26-2012, 08:28 AM   #3166
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My engine taps/ticks for about the first 5 sec of start up and then dissappears. Sounds similar to a hydraulic lifter that is starved for oil and then gets some and quiets out. Lots of waranty left will wait to see if it gets worse before mentioning to dealer. Mine was born in May 2012
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Old 10-26-2012, 08:40 AM   #3167
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Just my observation.. but the drivers side seems a bit louder.. is that due to the Exhaust head pipe converging right up top.. not sure of the passenger side has the same arrangement. You can see the pipe with the Sensor attached to it.
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Old 10-26-2012, 09:50 AM   #3168
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Dealer trip report: a few mins ago the service manager at my dealer says none of the heads he has changed even had a ping to begin with and a ping means nothing. Neither does mileage on average being 13 mpg. Has to have a CEL before they will do anything. But, he would " be happy to schedule me in for a diagnostic, as long as I'm aware that if nothing is found the diagnostics won't be covered under warranty." Also he said they would do a diag to check what was causing my pinging, even though a min beforebtjat he said he can hear no ping on my jeep.
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Old 10-26-2012, 09:54 AM   #3169
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Dealer trip report: a few mins ago the service manager at my dealer says none of the heads he has changed even had a ping to begin with and a ping means nothing. Neither does mileage on average being 13 mpg. Has to have a CEL before they will do anything. But, he would " be happy to schedule me in for a diagnostic, as long as I'm aware that if nothing is found the diagnostics won't be covered under warranty." Also he said they would do a diag to check what was causing my pinging, even though a min beforebtjat he said he can hear no ping on my jeep.
Gotta love it.....

Time to go see if the dealer has cashed my deposit check.
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Old 10-26-2012, 10:03 AM   #3170
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Oh and also said only ones affected were late 2011 builds...
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Old 10-26-2012, 05:01 PM   #3171
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So, finally we find out what they did to the head. We also find out the right side head already has an AD revision. Why they aren't replacing both heads is beyond me. From a chrysler tech at jeepforum:

Case Number: S1209000022
Release Date: 10/16/2012
Symptom/Vehicle Issue: Identifying Service Replacement Cylinder Heads
Diagnosis:
3.6L cylinders have been improved for durability by upgrading the valve seat and valve guide material. In order to verify that the latest upgrade is incorporated in to the cylinder head received from service parts verify the part number and Julian build date of the cylinder head
Part Number- RL141353AC or higher - left side head
Part Number -RL141352AD or higher– right side head
And a Julian build date of 2062 (206th of 2012) or higher .The build date is stamped on the outboard side of head at the center just below the rocker cover sealing rail

so it looks like AC heads came around the end of july
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Old 10-26-2012, 05:09 PM   #3172
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Man I just checked my parts sheet and I see cylinder head 68051212AB.
that's not a cylinder head part number. edit: that's your coolant
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Old 10-26-2012, 05:11 PM   #3173
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So, finally we find out what they did to the head. We also find out the right side head already has an AD revision. Why they aren't replacing both heads is beyond me. From a chrysler tech at jeepforum:

Case Number: S1209000022
Release Date: 10/16/2012
Symptom/Vehicle Issue: Identifying Service Replacement Cylinder Heads
Diagnosis:
3.6L cylinders have been improved for durability by upgrading the valve seat and valve guide material. In order to verify that the latest upgrade is incorporated in to the cylinder head received from service parts verify the part number and Julian build date of the cylinder head
Part Number- RL141353AC or higher - left side head
Part Number -RL141352AD or higher– right side head
And a Julian build date of 2062 (206th of 2012) or higher .The build date is stamped on the outboard side of head at the center just below the rocker cover sealing rail

so it looks like AC heads came around the end of july
AD on the right side? I wonder how long that part has been an AD?


Yo Chrysler....time to come clean....WTF is going on?

There is about to be a dealer in Plano Illinois with an extra 2013 Billet Sahara sitting on the lot.....along with an ebay or craiglist sale of some Wrangler accessories in my garage.

I guess I should look at the bright side. Mine should start getting built any day now....so they are probably on revision DZ by now or something....
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Old 10-26-2012, 05:17 PM   #3174
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AD on the right side? I wonder how long that part has been an AD?


Yo Chrysler....time to come clean....WTF is going on?

There is about to be a dealer in Plano Illinois with an extra 2013 Billet Sahara sitting on the lot.....along with an ebay or craiglist sale of some Wrangler accessories in my garage.

I guess I should like at the bright side. Mine should start getting built any day now....so they are probably on revision DZ by now or something....
hah. consider yourself lucky

i'm wondering. by the description in the note i posted, it should be possible to read the part numbers off the head.
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Old 10-26-2012, 05:26 PM   #3175
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All I know is when/if it happens to mine I will be raising an unholy stink like nobody has seen or heard in a long time at the dealership....

And I will demand that both heads be replaced, since it looks like valve guide and seat materials are suspect throughout.



Then I will regret getting rid of my bulletproof '04 F150 for a long time.....
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Old 10-26-2012, 06:24 PM   #3176
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So what I take from this is that the new build Wranglers are being built with updated right and left side heads. Not just the left. Which would mean that the right side, not just the left side, also may fail on the ones prior to this build change. So what Chrysler is doing is they will only replace the heads as they become a problem. Which means that you could have your left side replaced and then 6 months later have to go back and have the right side replaced. Nice......
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Old 10-26-2012, 06:28 PM   #3177
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[QUOTE=Strokerswild;2929422]All I know is when/if it happens to mine I will be raising an unholy stink like nobody has seen or heard in a long time at the dealership....

And I will demand that both heads be replaced, since it looks like valve guide and seat materials are suspect throughout.



Then I will regret getting rid of my bulletproof '04 F150 for a long time.....[/QUOTE]

Funny you should say that. Thats exactly what I was thinking of trading in on a new JKU.
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Old 10-26-2012, 06:29 PM   #3178
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Video is black due to the current time. Ticking is obvious without the video though it does seem a bit louder in the recording.

No code at 7500 miles. Mileage is on average 13-14 (calculated by hand) and only 3x in 30 tanks have I hit 15 even with the majority of my driving being at 65. Only other issues have been on 3 occasions in the last 2 months the engine has lost all power for about a second when taking off in first. Literally all power. Rpms bottom out, no forward movement other than initial momentum. Not sure if that is the same issue.

After having my 09 into the dealer a dozen time and having the gas tank replaced 4 times before hitting 30000 miles if this is in fact the head issue I might have to give up on the JK wrangler...*tears* but I love my jeep! It would be a hard decision but 2 for 2 is a bad record.
When new my JKU-R was giving me about 19-20 mpg all around... as the engine ticking came into play the gas mileage slowly started to fall. I was hitting 16-17 mpg's for a while, as the engine ticking got louder my mileage my MPG's dropped right before the head replacement at about 11,500 miles I was hitting about 13-14 MPG's...
I had the drivers side head replaced with part # ending with AC... for the first tank 300 miles I was hitting about 14-15 MPG's, right now I'm getting about 16-18 MPG's. I have only driven the jeep about 1500miles since the head replacement... I hope the mileage gets back to 19/20 MPG's.
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Old 10-26-2012, 06:29 PM   #3179
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Then I will regret getting rid of my bulletproof '04 F150 for a long time.....
I had a new 2002 F150 supercrew with the 5.4 triton that was a headache for Ford and I was wishing I had kept my 1996 f150 that had the reliable 302. There is no doubt like ford and the triton the pentastar will get sorted out. If you remember one of Fords issues with the 5.4 triton when it came out was oil related. It needed thinner oil to properly lube the tighter clearances.
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Old 10-26-2012, 07:34 PM   #3180
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So, finally we find out what they did to the head. We also find out the right side head already has an AD revision. Why they aren't replacing both heads is beyond me. From a chrysler tech at jeepforum:

Case Number: S1209000022
Release Date: 10/16/2012
Symptom/Vehicle Issue: Identifying Service Replacement Cylinder Heads
Diagnosis:
3.6L cylinders have been improved for durability by upgrading the valve seat and valve guide material. In order to verify that the latest upgrade is incorporated in to the cylinder head received from service parts verify the part number and Julian build date of the cylinder head
Part Number- RL141353AC or higher - left side head
Part Number -RL141352AD or higher– right side head
And a Julian build date of 2062 (206th of 2012) or higher .The build date is stamped on the outboard side of head at the center just below the rocker cover sealing rail

so it looks like AC heads came around the end of july
Whew! Julian date 2072 on my drivers side head. Made it by one day. My block has a Julian date of 2062 so I think I must have just barely made it.

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