Update on ticking Pentastar..new head... - Page 157 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 04-23-2013, 09:00 PM   #4681
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8

jkucod12 is online now   Quote Quick Reply
Old 04-23-2013, 09:10 PM   #4682
Jeeper
 
GotNet's Avatar
 
Join Date: Jul 2012
Location: Orlando
Posts: 96
Had the cylinder 6 miss fire over the weekend at 10,000 miles. Dropped it off today. They called a couple hours later stating I would have a new head by 6 PM tomorrow since the new part is in stock. I asked about the part number - they asked if I worked for Chrysler, lol... otherwise no fuss.

Timing is good. We have a 9 day vacation coming in a week playing in the Smoky Mountains.

__________________
2012 JKU Sport S Gecko
GotNet is offline   Quote Quick Reply
Old 04-23-2013, 09:37 PM   #4683
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8
Quote:
Originally Posted by jkucod12 View Post
GotNet, this is the latest and greatest most current part number for the left side head.
jkucod12 is online now   Quote Quick Reply
Old 04-24-2013, 09:39 AM   #4684
Jeeper
 
Join Date: Apr 2013
Posts: 30
Great photos! Thank you for your help!

My question arised from the fact, that I simply could not find this particular number anywhere on the head itself. Isnt that a bit weird/confusing? The only other number I found (apart from the Julian build date & QR code) is this.



Also here is another image documenting what is my problem P0306 - stuck valve...



My dealer will have a replacement head next week (aka 14 days w/o Jeep:-(, so let see how this will turn out...



Quote:
Originally Posted by jkucod12 View Post
GotNet, this is the latest and greatest most current part number for the left side head.
PET77 is offline   Quote Quick Reply
Old 04-24-2013, 09:47 AM   #4685
Jeeper
 
Join Date: Mar 2013
Location: Hoffman Estates, Illinois
Posts: 58
Thing that bothers me is if that valve is sticking and hitting the head of the piston ..if there only changing the heads well that sucks.. this 3.6 motor is the only thing holding me back at this point of getting a new jeep..
__________________
Looking for a jeep ...tj, yj, jk, xj .....
scaler-jk is offline   Quote Quick Reply
Old 04-24-2013, 09:51 AM   #4686
Jeeper
 
RoadiJeff's Avatar
 
Join Date: Dec 2012
Location: St. Louis, MO
Posts: 2,153
Quote:
Originally Posted by scaler-jk View Post
this 3.6 motor is the only thing holding me back at this point of getting a new jeep..
It was a 2012 MY problem that has been corrected.
RoadiJeff is offline   Quote Quick Reply
Old 04-24-2013, 10:10 AM   #4687
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8
jkucod12 is online now   Quote Quick Reply
Old 04-24-2013, 10:56 AM   #4688
Jeeper
 
jadmt's Avatar
 
Join Date: Sep 2012
Location: missoula
Posts: 6,294
Quote:
Originally Posted by PET77 View Post
Great photos! Thank you for your help!

My question arised from the fact, that I simply could not find this particular number anywhere on the head itself. Isnt that a bit weird/confusing? The only other number I found (apart from the Julian build date & QR code) is this.



Also here is another image documenting what is my problem P0306 - stuck valve...



My dealer will have a replacement head next week (aka 14 days w/o Jeep:-(, so let see how this will turn out...

no it is common to not have the actual part number on the part itself. That happens industry wide. Casting numbers are often different then actual part numbers.
jadmt is offline   Quote Quick Reply
Old 04-24-2013, 06:31 PM   #4689
Jeeper
 
GotNet's Avatar
 
Join Date: Jul 2012
Location: Orlando
Posts: 96
Quote:
Originally Posted by GotNet View Post
Had the cylinder 6 miss fire over the weekend at 10,000 miles. Dropped it off today. They called a couple hours later stating I would have a new head by 6 PM tomorrow since the new part is in stock. I asked about the part number - they asked if I worked for Chrysler, lol... otherwise no fuss.

Timing is good. We have a 9 day vacation coming in a week playing in the Smoky Mountains.
New head (AC), oil change and rotate - $11.66 out the door with a free detail on the next service as I noticed oil drops on the air filter cover.
__________________
2012 JKU Sport S Gecko
GotNet is offline   Quote Quick Reply
Old 04-25-2013, 12:28 PM   #4690
Jeeper
 
Join Date: Mar 2013
Posts: 33
Quote:
Originally Posted by PET77 View Post
Great photos! Thank you for your help!

My question arised from the fact, that I simply could not find this particular number anywhere on the head itself. Isnt that a bit weird/confusing? The only other number I found (apart from the Julian build date & QR code) is this.



Also here is another image documenting what is my problem P0306 - stuck valve...



My dealer will have a replacement head next week (aka 14 days w/o Jeep:-(, so let see how this will turn out...
Where are you located?
ekdigdirt is offline   Quote Quick Reply
Old 04-25-2013, 04:11 PM   #4691
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8
Quote:
Originally Posted by jkucod12 View Post
Ek dig dirt,

Click on the link above and look at the third photo down…

Hope this help.
jkucod12 is online now   Quote Quick Reply
Old 04-25-2013, 04:27 PM   #4692
Jeeper
 
Join Date: Apr 2012
Posts: 197
Well count me in as another ticking Pentastar casualty. Jeep ran fine with no ticks or any problems for the first 15,000 miles. I noticed a tick in the last 5 thousand miles and it's gotten progressively louder. At 21,000 miles the CEL came on and I dropped it off at the dealer this morning. The dealer just called and confirmed what I suspected, P0302 cylinder 2 misfire.

They ordered a new cylinder head today (AC) and said I should have my Jeep back by Monday. They said that they would line up a rental for me tomorrow for the weekend....not much more I can ask for from a dealer. They have a pretty good reputation so hopefully they fix it right and put everything back like it's supposed to be.

Pretty much made it painless for me, they never tried to re-flash the computer and they didn't act like they've never see this before either. In fact when I called and told them about the ticking and CEL and what I suspected the problem was, I asked if they had performed this repair on other 3.6 Pentastar engines and they said that they had.

They didn't go out of their way to make it seem like a big problem but they certainly said they have done their share of head replacements on these 3.6 liter engines.

So I'll report back when it's fixed......stay tuned.
JB71 is offline   Quote Quick Reply
Old 04-25-2013, 08:06 PM   #4693
Jeeper
 
Join Date: May 2011
Posts: 2,406
Quote:
Originally Posted by RoadiJeff View Post
It was a 2012 MY problem that has been corrected.
Are we 100% certain of this? Thanks
demarpaint is online now   Quote Quick Reply
Old 04-25-2013, 10:21 PM   #4694
Jeeper
 
Join Date: Apr 2012
Posts: 197
Quote:
Originally Posted by SilverSport View Post
Mine has an uneven idle/stumble too. Time will tell.

That was one of my "tell tale signs" that the end was near as well.

Like I mentioned, the engine was quiet as a church mouse for the first 15,000 miles, then a slight tick, then a louder tick. At this point I knew what was wrong and I hoped it would hold out as long as it could so that the dealers could get caught up with head orders and make sure they had the updated AC head design before it threw the CEL. The last couple thousand miles it had a slightly lower and bumpy idle. Sure enough, it wasn't too much longer before the light came on.

I purchased the jeep just about a year ago to the day and put on 21,300 miles before the light came on. I believe my build date was December 2011.

I also noticed a slight decrease in fuel mileage. I was getting about 21mpg on the hwy and that dropped to 18.5 (per the dash computer) the last few thousand miles as well.
JB71 is offline   Quote Quick Reply
Old 04-26-2013, 08:19 PM   #4695
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8
jkucod12 is online now   Quote Quick Reply
Old 04-29-2013, 09:15 AM   #4696
Jeeper
 
Join Date: Apr 2013
Posts: 30
Quote:
Originally Posted by demarpaint View Post
Are we 100% certain of this? Thanks
No. I have 2013" MY and i am currently having this problem solved by my dealer - 6 cyl misfire...
PET77 is offline   Quote Quick Reply
Old 04-29-2013, 09:20 AM   #4697
Jeeper
 
Join Date: May 2011
Posts: 2,406
Quote:
Originally Posted by PET77 View Post
No. I have 2013" MY and i am currently having this problem solved by my dealer - 6 cyl misfire...
Thanks for the info! That sucks! Was yours an early 2013 with an AB head? If it has an AC head that would really suck.
demarpaint is online now   Quote Quick Reply
Old 04-29-2013, 10:51 PM   #4698
Jeeper
 
Join Date: Apr 2012
Posts: 197
Well, I got my Jeep back today and I can honestly say I don't remember it ever being this quiet. I purchased it new with about 20 or so miles on it and I sure don't think it ever ran this quiet and smooth.

Anyway, the dealer did a great job with the repairs, you can't tell it's ever been worked on (like it should be) so I'm pretty happy about the whole ordeal. I never worried about it ticking, I actually think they ALL will fail, some just sooner than others, I was more worried about the quality of the work by those fixing it as we all know some dealers can be butchers. I've had my fair share of rotten, crooked dealers absolutely screwing up a job. My dealer however, did a good job and all is well.

I don't care how Chrysler spins this, there is definitely a problem with the design of the original cylinder head and as far as I'm concerned that means ALL of the early Pentastar engines will have this problem sooner or later.

That doesn't mean it's a bad motor, I actually think it's a great power plant and like most new designs, they will have their glitches and "growing pains" before all of the kinks are worked out. I just think Chrysler is handling this wrong. If they're not going to do a re-call, the least they can do is make it painless for those who experience the ticking and not make you jump through hoops just to get the cylinder head replaced like some are experiencing.

Now my experience was painless, perhaps this is a sign that those who still need their cylinder head replaced won't experience too much of a hassle as this becomes more and more of a well known problem.

Just pick the right dealer (one with a good reputation) and if the cylinder head is in stock you will get your Jeep back in a couple days good as new.
JB71 is offline   Quote Quick Reply
Old 05-01-2013, 04:25 AM   #4699
Jeeper
 
Join Date: Dec 2011
Posts: 39
Quote:
Originally Posted by tomthbomb View Post

Don't worry about him.

His U.A.W. shop steward probably was pissed cause he was hoggin' the dubie and 40 ouncer at lunch and docked him for overtime in the break room.

Same thing goes on over at G.M. and Ford.
I work at a Chrysler plant. We find quality problems all the time, and when we bring it to managements attention, they just keep running the problem so the line doesn't stop. We have no say in the matter which sucks, because shit quality means ill be out of a job once consumers get pissed enough.
BeeGeeLuigi is offline   Quote Quick Reply
Old 05-01-2013, 11:33 AM   #4700
Jeeper
 
Trek7.2FX's Avatar
 
Join Date: Mar 2013
Posts: 123
Any confirmed cases of an AC head failure yet? Here's to hoping the answer is "no"!
Trek7.2FX is offline   Quote Quick Reply
Old 05-01-2013, 03:51 PM   #4701
Jeeper
 
Join Date: Apr 2012
Posts: 197
Quote:
Originally Posted by Trek7.2FX View Post
Any confirmed cases of an AC head failure yet? Here's to hoping the answer is "no"!
Not that I've heard of.....PET77 (a few posts up) had a problem with a 2013 but it looks to be a stuck intake valve and not an exhaust valve seat problem which is causing everyone's "tick". Also it's still not known if his 2013 was an early unit with possibly an AB head on it.
JB71 is offline   Quote Quick Reply
Old 05-01-2013, 04:21 PM   #4702
Jeeper
 
Join Date: May 2011
Posts: 2,406
Quote:
Originally Posted by Trek7.2FX View Post
Any confirmed cases of an AC head failure yet? Here's to hoping the answer is "no"!
I'd love to know myself. I have a feeling the two I heard about were early 2013 builds with AB heads, but I'd love to know for sure.
demarpaint is online now   Quote Quick Reply
Old 05-01-2013, 04:31 PM   #4703
Jeeper
 
Trek7.2FX's Avatar
 
Join Date: Mar 2013
Posts: 123
Good to know. I really hope the AC cylinder head represents a real fix. I have really enjoyed my 13 thus far and don't want to feel the need to trade it in before the power train warranty expires!
Trek7.2FX is offline   Quote Quick Reply
Old 05-01-2013, 05:22 PM   #4704
Jeeper
 
Jeeperz Creeperz's Avatar
 
Join Date: May 2012
Location: Pensacola, Fl
Posts: 897
If this was MY 2012 problem that occurs above 10,000 there may be many like me who have a comapany car and only use the Wrangler on the weekends. It also splits weekend time with my motorcycle and soon my project TJ.

Mine is 1 year old this week and I only have 3200 miles on it. No problems with it at all but I do wonder if the defective head issue shows up after the 5 year mark of the warranty, will they charge me to fix it.

There should be blanket coverage of every owner with the original (defective?) head, otherwise there are going to be some expensive repairs for original or 2nd or 3rd owners in 2017 or so.
Jeeperz Creeperz is offline   Quote Quick Reply
Old 05-01-2013, 07:54 PM   #4705
Jeeper
 
Muddr1's Avatar
 
Join Date: Nov 2009
Location: New Hampshire
Posts: 454
I have 15000 on mine right now. Tick is ever so slight. I am just keeping an eye on it for now. I too am one who is waiting all this out to make sure the ac head is a perminent fix. Sounds like it is. So in the meentime I am just driving the heck out of it.
__________________
Keep calm, Chive On
Muddr1 is offline   Quote Quick Reply
Old 05-01-2013, 10:33 PM   #4706
Jeeper
 
Blastek's Avatar
 
Join Date: Mar 2012
Location: Portland, OR
Posts: 2,299
Quote:
Originally Posted by Jeeperz Creeperz View Post
If this was MY 2012 problem that occurs above 10,000 there may be many like me who have a comapany car and only use the Wrangler on the weekends. It also splits weekend time with my motorcycle and soon my project TJ.

Mine is 1 year old this week and I only have 3200 miles on it. No problems with it at all but I do wonder if the defective head issue shows up after the 5 year mark of the warranty, will they charge me to fix it.

There should be blanket coverage of every owner with the original (defective?) head, otherwise there are going to be some expensive repairs for original or 2nd or 3rd owners in 2017 or so.
Someone posted about a dozen pages back and claimed that their dealer stated that if ticking was reported to the service dept. during the warranty period, Chrysler would honor the head replacement outside of warranty. take it for what it is, interweb gossip.
__________________
2012 Deep Cherry Red JKU Sport S - Tickastar, 6 speed, 3.73, Dual Tops
Blastek is offline   Quote Quick Reply
Old 05-01-2013, 10:44 PM   #4707
Jeeper
 
rethyk's Avatar
 
Join Date: Feb 2012
Location: toronto
Posts: 60
Quote:
Originally Posted by Blastek View Post
Someone posted about a dozen pages back and claimed that their dealer stated that if ticking was reported to the service dept. during the warranty period, Chrysler would honor the head replacement outside of warranty. take it for what it is, interweb gossip.
pretty sure that was a post of mine since I recall very clearly having this discussion with my service manager. keep in mind tho that this was from a "5 star rated" dealer in Canada... so no guarantees for american dealers since they seem to be a lot more sketch than the ones up here. Best thing you can do is ask the service manager at your dealer if they will do this. just don't go in thinking they are obligated to provide warranty work if you bring in your jeep for them to have a look at it because of ticking. I think it's really up to the dealership and whether they see you as a good repeat customer and not just someone who buys the jeep and is never seen again.
__________________
ordered on 02-13-2012:: 2012 JKR ( 430N+Uconnect, black hard top, 6speed )
picked up 04-07-2012:: aww giggidy...
mods so far: ACE rails / K&N drop in air filter
rethyk is offline   Quote Quick Reply
Old 05-01-2013, 11:27 PM   #4708
Dance w/me tonight

WF Supporting Member
 
jkucod12's Avatar
 
Join Date: Jul 2012
Posts: 1,028
Images: 8
jkucod12 is online now   Quote Quick Reply
Old 05-02-2013, 03:44 AM   #4709
Jeeper
 
Join Date: Apr 2013
Posts: 30
Quote:
Originally Posted by ekdigdirt View Post
Where are you located?
I am currently posted (with my car) in Europe. And boy can I say I am fucked up - just got a call from local Jeep dealer, they wont have the head from the States for another 2-3 weeks. At least! Bearing in mind my car sits there for 3 weeks already, I am really pissed off. Since my ownership of this JK, I drove it for only 3 months and now it should sit for more than one month in dealership?!?
PET77 is offline   Quote Quick Reply
Old 05-02-2013, 07:08 AM   #4710
Jeeper
 
sobeperry's Avatar
 
Join Date: May 2012
Posts: 599
Click image for larger version

Name:	image-3088331045.jpg
Views:	100
Size:	134.5 KB
ID:	244184

Drove her around town multiple times as could not use piaggio due to rain. Hit the 10,000 miles, just a few weeks before her year with me. Dec 2011 build date. No noisy tick as mentioned by some but def not quite.

sobeperry is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

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.



Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How can you tell if your head or head gasket is cracked/blown? archt JK General Discussion Forum 5 10-19-2012 11:43 AM
Head Unit won't turn on anymore?? BlackMountain JK General Discussion Forum 17 05-15-2011 05:17 PM
Really bummed...cracked head? rospan TJ General Discussion Forum 5 04-03-2011 10:58 AM
I need a head... oops... a 4.0 head! kllrdana TJ General Discussion Forum 2 03-26-2011 04:36 PM
Head Unit Jacked!!! TJChris27 TJ General Discussion Forum 15 03-25-2011 03:20 PM



» Featured Product

All times are GMT -5. The time now is 04:15 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