2012 cylinder head
JK Enthusiast
Joined: Oct 2012
Posts: 141
Likes: 0
From: Indianapolis
Originally Posted by CrystalRubi
Wow. That is exactly the same thing my service advisor told me last week except mine has 8400 miles on it. But he said I'm covered under warranty and if it gets worse they would listen to it again and re-evaluate. I'm in no hurry to have my baby torn apart so I'm waiting for the Check Engine light to come on.
I am cool with it since I know it will be covered and also in no hurry to have my baby taken apart either!
Thread Starter
JK Newbie
Joined: Dec 2011
Posts: 87
Likes: 1
From: downey,ca
So its in the shop now getting worked on.
I bought it 1 year ago tomorrow for my birthday, lets see if I get iot back on my birthday as well lol.
I'll let you know how it goes.
BTKillerr
I bought it 1 year ago tomorrow for my birthday, lets see if I get iot back on my birthday as well lol.
I'll let you know how it goes.
BTKillerr
Thread Starter
JK Newbie
Joined: Dec 2011
Posts: 87
Likes: 1
From: downey,ca
Well I got my JK back yesterday and its running great! The noise I heard under the hood is gone, idle is nice and steady, and Id like to believe my power is back(thats a little subjective anyway usually lol). The dealer in Cerritos treated me really well.
Now to figure out my suspension issue lol.
BTKillerr
Now to figure out my suspension issue lol.
BTKillerr
JK Enthusiast
Joined: Jul 2012
Posts: 272
Likes: 0
From: South Florida
I just don't understand the head issue. Why would only the driver side's head be faulty? Wouldn't both heads have the same defect if it is not a design issue but is a manufacturing issue? It seems like if you replace one side's head - the other side should automatically be replaced too. The engine is symmetrical - right? One side will have a different head design than the other? If the driver side's head is "revised", is the passenger side's head revised now too? And if it is, both side's should be replaced and if it isn't really "revised", than this was just a few poorly manufactured driver's side heads and there has been no re-design...only a change in the manufacturing location or process. 
Last edited by lanslide; Nov 14, 2012 at 02:57 AM.
JK Newbie
Joined: Apr 2012
Posts: 22
Likes: 0
From: Westchester NY
2012 jk
recently i hit 5000 miles and i have had a ticking sound going for a while so i decided to bring my jeep to the dealer and they had to replace my lifters, heads, cylinders, and a few other little things my whole right side of my engine is new it was in the shop for a month. after it was all said and done i have only had it back for about a month now im hearing different sounds like i have a leak somewhere and a small rattleing sound and it hasnt been driving the same as it was with the ticking 
JK Enthusiast
Joined: May 2010
Posts: 462
Likes: 0
From: Lowell, AR
Originally Posted by 2012GRJK
they had to replace my lifters, heads, cylinders, and a few other little things my whole right side of my engine is new