Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum > Update on ticking Pentastar..new head...

Join Wrangler Forum Today


Thread: Update on ticking Pentastar..new head... Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
Today 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.
Today 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.
07-13-2014 10:45 AM
Paprika By the way, is it safe to drive it until its fixed?
07-13-2014 10:45 AM
Paprika I got my notice yesterday about an extension of the warranty; just in time too, my check engine light just came on last week. I had a friend check the code; #2 cylinder multiple misfires.
07-11-2014 07:17 PM
RockyRiverJeep
Chill Out

Quote:
Originally Posted by RedRubi2012 View Post
My head replacement story for the record books:

2012 Rubicon with 2011 engine build date, and I started throwing P00300 and P00304 around 32000 miles with no loss of power or immediate lose of fuel economy. Brought it to the dealership, and they followed standard protocol starting with a reflash first, stating that the reflash prevented any false positive MIL illuminations for misfire. The P00304 code was tripped again about 4 days later, and I brought it back in for a compression/leakdown test. They stated that cylinder 4 had 60% leakdown into the exhaust, and would need the new LH cylinder head. They put me into a rental vehicle (F-150 XLT 4x4), and had the Jeep for 7 days to order the parts and do the repairs. I pushed them hard to replace both heads at the same time, but they would not do it under warranty. I was quoted $1500 if I wanted the RH head replaced the same time as the LH, so I opted not to do it.

When I went back in to pick up the Jeep, I asked to talk to the tech who did the work to find out more about how the compression test turned out for the RH bank, and he said that they didn't test those cylinders because there was no indication they were bad. He stated that they did a realtime diagnostic on all cylinders, and didn't notice any abnormal misfiring from any of the cylinders on the RH bank, so if I wanted them tested I would have to pay for it. He also explained that they received new information from Chrysler that the head itself was not the original problem, but rather that the head gasket for the LH side had cutouts that partially blocked the water jacket going to the head, causing a hot spot and a subsequent premature wearing of the valve seats and guides.

Initial impressions are that the AC head is a bit quieter than the original, but it still pretty loud/chattery. There is a still an audible ticking sound, however, the RH side seems to tick louder than the LH side after the replacement. My mpg's have gone up for mixed driving from 17mpg to 19.5 mpg on the first tank since replacement, and 20.2mpg on my last tank, which is a positive. Throttle response and power seem to be about the same as prior to the repair.

A couple things that irked me which have nothing to do with Chrysler as a whole, but my dealership and the mechanic that did the job. I did my 32,000 mile service this weekend (Oil change, manual trans. fluid, air filter, etc.) and basically all of the fasteners on my lower oil pan were finger loose. The pan was still in place due to the RTV gasket, but I suspect another 4-5K miles would have vibrated many of the fasteners completely out. The hose clamp holding my air boot to the throttle body was not tightened, and hence the boot was just loosely slipped over the throttle body possibly allowing dirty air to seep past. Also, the fasteners holding the throttle body to the intake manifold were in need of tightening, and the corner of my airbox cover was cracked off. The piece of plastic debris was sitting on top of my air filter on the engine side of the filter, so luckily vaccuum didn't suck it into the engine. After finding all of this, my confidence in the repair work was pretty shaken, so I went over every fastener I could access without disassembling anything and just checked everything for tightness.

Additionally, I recieved a letter from Chrysler the other day indicating that they would be extending the warranty on the LH head only to 10 years/ 150K miles, and that 2011-2013 Wranglers were affected. Although I have alot of respect for the way they have handled this, I feel like they should be extending the entire engine warranty, or at the very least both LH and RH side heads. Who is to say that debris released into the engine due to the wear of the valve seats and guides didn't compromise the overall life of other internal components.

My main questions are how many people have had the RH cylinder head replaced, and has anyone else experienced the loose oil pan? I'm pretty sure these fasteners were not loose before, but I have a hard time believing that they would have needed to remove the pan to do the head replacement. The only thing I can think of was that the mechanic dropped something in the engine and needed to flush out the block.
Folks, Chrysler is not going to replace the passenger side head (currently no defects that we know of) when they do a warranty claim on the defective driver's side head. You can have it done, but YOU will pay for the diagnostic, parts and labor for that. Period. They are not going to extend the warranty on the passenger head. Get these ideas out of your head.

As far as the loose bolts, as long as you documented that on a return service interval at the dealership that did the work, you will have a record that you can use later, if necessary. Chances are no damage was done. The service department should've been given the business for the shoddy work, though.

Have the dealership replaced the cracked airbox lid. I hope you reported that immediately when you noticed it.

My 2012 Wrangler had the driver's head replaced last June. It's definitely more quiet, but there is still some very light ticking. I don't worry about it. If you're uncomfortable taking your Jeep there in the future, research other Jeep dealers and their service ratings/commendations.

Lastly, always report any questionable/shoddy work right away and make them add the complaint notes to the service log. You'll have a paper trail. Keep all service receipts and make sure all service is done in accordance with the recommended service schedule/procedures.

Go out and enjoy your Jeep!
07-09-2014 05:40 PM
RedRubi2012 My head replacement story for the record books:

2012 Rubicon with 2011 engine build date, and I started throwing P00300 and P00304 around 32000 miles with no loss of power or immediate lose of fuel economy. Brought it to the dealership, and they followed standard protocol starting with a reflash first, stating that the reflash prevented any false positive MIL illuminations for misfire. The P00304 code was tripped again about 4 days later, and I brought it back in for a compression/leakdown test. They stated that cylinder 4 had 60% leakdown into the exhaust, and would need the new LH cylinder head. They put me into a rental vehicle (F-150 XLT 4x4), and had the Jeep for 7 days to order the parts and do the repairs. I pushed them hard to replace both heads at the same time, but they would not do it under warranty. I was quoted $1500 if I wanted the RH head replaced the same time as the LH, so I opted not to do it.

When I went back in to pick up the Jeep, I asked to talk to the tech who did the work to find out more about how the compression test turned out for the RH bank, and he said that they didn't test those cylinders because there was no indication they were bad. He stated that they did a realtime diagnostic on all cylinders, and didn't notice any abnormal misfiring from any of the cylinders on the RH bank, so if I wanted them tested I would have to pay for it. He also explained that they received new information from Chrysler that the head itself was not the original problem, but rather that the head gasket for the LH side had cutouts that partially blocked the water jacket going to the head, causing a hot spot and a subsequent premature wearing of the valve seats and guides.

Initial impressions are that the AC head is a bit quieter than the original, but it still pretty loud/chattery. There is a still an audible ticking sound, however, the RH side seems to tick louder than the LH side after the replacement. My mpg's have gone up for mixed driving from 17mpg to 19.5 mpg on the first tank since replacement, and 20.2mpg on my last tank, which is a positive. Throttle response and power seem to be about the same as prior to the repair.

A couple things that irked me which have nothing to do with Chrysler as a whole, but my dealership and the mechanic that did the job. I did my 32,000 mile service this weekend (Oil change, manual trans. fluid, air filter, etc.) and basically all of the fasteners on my lower oil pan were finger loose. The pan was still in place due to the RTV gasket, but I suspect another 4-5K miles would have vibrated many of the fasteners completely out. The hose clamp holding my air boot to the throttle body was not tightened, and hence the boot was just loosely slipped over the throttle body possibly allowing dirty air to seep past. Also, the fasteners holding the throttle body to the intake manifold were in need of tightening, and the corner of my airbox cover was cracked off. The piece of plastic debris was sitting on top of my air filter on the engine side of the filter, so luckily vaccuum didn't suck it into the engine. After finding all of this, my confidence in the repair work was pretty shaken, so I went over every fastener I could access without disassembling anything and just checked everything for tightness.

Additionally, I recieved a letter from Chrysler the other day indicating that they would be extending the warranty on the LH head only to 10 years/ 150K miles, and that 2011-2013 Wranglers were affected. Although I have alot of respect for the way they have handled this, I feel like they should be extending the entire engine warranty, or at the very least both LH and RH side heads. Who is to say that debris released into the engine due to the wear of the valve seats and guides didn't compromise the overall life of other internal components.

My main questions are how many people have had the RH cylinder head replaced, and has anyone else experienced the loose oil pan? I'm pretty sure these fasteners were not loose before, but I have a hard time believing that they would have needed to remove the pan to do the head replacement. The only thing I can think of was that the mechanic dropped something in the engine and needed to flush out the block.
07-08-2014 09:22 PM
gecko4 The 2013 and newer engines did use a different oil pump, and had a viscosity change from 5w30 to 5w20. I would try to push the dealer for a long block (comes assembled with both heads already on)
That way, everything is the updated design.
07-08-2014 09:18 PM
Riccochet 33,500 miles and no tick yet. She rattles like a sumbitch in the winter on cold starts though. Build date of 11/11. Good to hear about the warranty extension. A little peace of mind.
07-08-2014 09:07 PM
JayDee Well it finally happened, MIL light came on with 29,300 miles showing on odo. Jeep seemed to be running good up until about week ago and then started having a very slight rough idle.

Dropped the Jeep off for inspection, code P0302 , head in stock and was told it would be ready in a couple of days, was given a rental no questions asked.
Got a call from the dealer this afternoon with the Jeep only in the shop for about 7 hours and thought cool it's ready. NOT....
Was told that when removing the head bolts that the engine block threads came out with one of the bolts. Block is toast. The dealer called STAR and was instructed to install a new short block assembly. So I thought cool I will almost have a complete new engine minus the RH cylinder head. The only real bummer is that the short block is on backorder, the dealer will call with a eta tomorrow. My question to you guys is would you go ahead a spring for a new RH cylinder head? Haven't the seats and valves also been upgraded in this head ? This would give me a new long block assy and would be like starting over with a new engine. And are their any upgrades made to the 13 / 14 bottom ends of these engines that will be better than the 2012 engine. Just trying to have a good feeling about this whole mess. I am already missing my Jeep.

Thanks
06-17-2014 09:30 PM
Drumguy As many have mentioned before, be sure to check your coolant level once this is done. Lazy dealerships just don't seem to want to burp the system correctly and you'll just be back again for a top-off if you don't have some coolant handy.
06-17-2014 05:44 AM
gecko4
Quote:
Originally Posted by tomthbomb View Post
So, should those of us with a 2012 and a new head stay with 5w30 or use 5w20? I am using 5w30 full synthetic. Maybe middle ground? Btw, did anyone get to 44k miles before the head failed like I did, or am I the high mileage head changer?
I'd still stick with what the manual recommends for your year. Remember, the 2013 has a different oil pump with the 5w20.
06-16-2014 06:15 PM
tomthbomb
Quote:
Originally Posted by gecko4 View Post
Probably just an over site. In 2012, the oil spec for the 3.6 was 5w30. In 2013, the head was upgraded ( I'd really like to know what was done to improve it), a different oil pump was used, and the viscosity dropped to 5w20. I'm only guessing, but part of the reason for that would be to flood the upper valve train with oil. This would aid in removing heat, the root cause of the head problems.
So, should those of us with a 2012 and a new head stay with 5w30 or use 5w20?

I am using 5w30 full synthetic. Maybe middle ground?

Btw, did anyone get to 44k miles before the head failed like I did, or am I the high mileage head changer?
06-16-2014 12:59 PM
blankster Here is another link on the warranty. I suspect a letter will be mailed to all those who are covered.

http://www.autonews.com/article/2014...e-2011-13-v-6s
06-15-2014 09:34 PM
gecko4
Quote:
Originally Posted by rox-n-mud View Post
Got my oil changed by the stealership the other day. Just finally looked at the receipt, they put 5W-20 in. On the valve cover and in the manual it says 5W-30. Does anyone think they may do this cuz of the head problem? I claim ignorance here, I really don't know. Someone school me up on oil weights and such.
Probably just an over site. In 2012, the oil spec for the 3.6 was 5w30. In 2013, the head was upgraded ( I'd really like to know what was done to improve it), a different oil pump was used, and the viscosity dropped to 5w20. I'm only guessing, but part of the reason for that would be to flood the upper valve train with oil. This would aid in removing heat, the root cause of the head problems.
06-15-2014 07:42 PM
rox-n-mud Got my oil changed by the stealership the other day. Just finally looked at the receipt, they put 5W-20 in. On the valve cover and in the manual it says 5W-30. Does anyone think they may do this cuz of the head problem? I claim ignorance here, I really don't know. Someone school me up on oil weights and such.
06-14-2014 06:00 PM
rox-n-mud Great, guess I can stop worrying. Can you provide an actual web-link please?
06-14-2014 02:22 PM
Pressurized
Quote:
Originally Posted by rox-n-mud View Post
Do you have knowledge of them extending the warrantee for heads?
Here is where the information is coming from:

Warranty Extension
06-14-2014 01:05 PM
rox-n-mud
Quote:
Originally Posted by RockyRiverJeep View Post
With the warranty extended to 10 years/150,000 miles (whichever comes first) on the problem heads, I wouldn't worry about it. I would just drive it as intended and don't baby it. If/when the head starts failing, you'll eventually get a CEL. That will lead to the leak-down test and head replacement if it fails the test.

Do you have knowledge of them extending the warrantee for heads?
This thread has more than 30 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 11:24 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC