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Topic Review (Newest First)
02-28-2012 09:18 AM
Jk11-girl
Quote:
Originally Posted by bengen1
Assume you all have hard tops like me..if window is cracked a bit the doors close easier
Nope.... I have a soft top. I do know that the striker plate on the passenger door keeps getting out of line. The dealer has had to fix it once already and now it's messing up again.
And I don't notice any ticking but I haven't really listened to it that closely. I've taken it off road twice now... Got into some deep stuff, had a cracked head replaced (not my fault) and it still runs great. I'm going to assume that everyone has some kind of noise... We are just worried about any noise we hear. My advice: keep up your scheduled maintenance, and enjoy it!
02-28-2012 09:03 AM
bengen1 Assume you all have hard tops like me..if window is cracked a bit the doors close easier
02-27-2012 06:51 AM
Jk11-girl
Quote:
Originally Posted by saaboo
Just purchased 2012 rubicon, just wondering about doors, you have to slam to shut is THAT NORMAL? ???
Yes... It's normal... The first time I shut mine, the dealer said... It's a jeep... You have to shut them hard!
02-27-2012 01:37 AM
johnnykuta I have to slam my doors as well - 2012 rubicon. Was wondering about that.
02-26-2012 11:46 PM
saaboo
2012 rubicon unlimited

Just purchased 2012 rubicon, just wondering about doors, you have to slam to shut is THAT NORMAL? ???
02-26-2012 08:19 PM
geckojk1
Quote:
Originally Posted by magnumip View Post
Mine was built 10/11 engine only ticks at start up for a sec. I have 4000 miles on it and i changed oil and filter at 3700 miles. no metal on drain plug or in filter. I put moble one full synthetic and mopar filter from dealer back in it. engine runs great for now. power curve seems smoother now with synthetic.

My trans worries me more has jumped out of forth when cold, now i just skip forth until it warms up to prevent gear damage. I made dealer top off my six speed it was a little low on fluid from factory.

Over all I am Happy with my Wrangler but i like Jeeps. I had a 1984 CJ for 15 years and it was a good friend to me.
There is a TSB for the jk coming out of gear in cold weather , they will replace the shifter detent spring, inner , outer shifter boots and shift knob.
02-26-2012 07:16 PM
JeepInUse A couple of Cam Phasers replaced and now I can say I have no tick...
02-26-2012 04:49 PM
Aegis Build 11-11 1500 miles no tick
02-26-2012 04:05 PM
PA ARCTIC i finally got paranoid enough to check mine out this afternoon. 2,700 miles. i noticed no "tick"
02-22-2012 08:25 PM
i82much leakdown test, leakdown test, leakdown test if you are worried!
02-22-2012 08:16 PM
Gottabstick Just rolled over 20,000 miles on mine ( probably the highest on the board ) with no real issues. Only thing to note would be that my rear diff fluid was toast at 15,000 miles, kind of early. Build date 08/11
02-21-2012 01:27 PM
Up Hill Bill
Pentastar Valve Noise

Last August, when 2012s just started to come out and people wondered why the heavy engine shroud/cover thingy was there, a very knowledgeable forum member who had actually worked on testing of the Pentastar for Chrysler, rlast, explained it this way:

Quote:
Originally Posted by rlast View Post
The purpose of the cover is for noise reduction. Without the cover the valve train and intake radiate a lot of noise. Some of that noise is airborne and this cover is intended to dampen that. The other noise is structure borne and must be dealt with via engine mounts and other structural damping features.

Hey.... you guys asked. There's the answer.
Apparently, the Pentastar valve train is inherently noisy, and thus, a lot of us may be mistaking normal ticking valve noise for a sign of the bad head problem. In listening to the various videos of "the noise," it seems that those with a real problem have a very uneven and loud "clank" among the normal valve chatter....
02-21-2012 12:40 PM
Bikeman71 As the starter of this thread I wanted to reply back with some information that may be valuable to you all. I took my 2012 JKU Rubicon to the dealer for my free oil change at 1100 miles yesterday. I still feel like mine is running correctly with very little engine noise....and definitely no difference between the driver's side and passenger's side.

When speaking with the service manager, I brought up the issues that are starting to come up with some degree of regularity about the Pentastars on the JK websites. He stated he had not personally seen any Wranglers come in with the issue, but had dealt with "several" grand caravans and a "couple" of grand cherokees. He also said that more head replacements had come with rental vehicles that were under warranty...he didn't really have a reason for this, but it was something he had noticed.

Also, while I was in the service department, they pulled up a brand new Dodge Challenger with the Pentastar and it sounded louder than mine....I assumed because of the insulation and it being lower to the ground, it would be dead quiet....not so.....i think there is some degree of noise with all of the Pentastars.
02-21-2012 12:23 PM
strider_mt2k I'd like to call a vote that the NO ticking and the ticking threads be merged.

It's the same conversation in both threads at this point.
02-21-2012 12:17 PM
magnumip
Not normal

I listened to all three, first two have a lifter problem with one or two involved. First on sounds like a leaky exhaust valve or exhaust gasket still more likely a lifter. Either way its a problem that needs fixed.

I make my living as a mechanic and have for 34 years. Loud ticking isnt normal, hydraulic lifters were invented to correct noise and the need for constant adjustment. It is that simple. They tick at start up once pumped up they should be almost noise free, not one side loader than the other.

Make dealer fix it.
02-18-2012 01:09 AM
offcamber I hear the difference, but I also hear the difference in what the mic is picking up. The "silent" one has a lot of background wind noise and it's drowning out the "tick" somewhat. I hear the tick in the silent one, it's just not as isolated as the other clip. I played around a bit ago and recorded the sound with a couple of devices and it changes how prominent the "tick" is. I'm not saying some of the engines don't have a problem, I'm just saying that some degree of ticking seems to be normal. This is how mine sounds when recorded on an Iphone 4. This is apparently how a normal engine should sound when recorded with an iphone 4.

2012 Pentastar ticking - YouTube



Quote:
Originally Posted by Up Hill Bill View Post
Can you not hear the difference between the following two "tickers" and the third "normal" Pentastar?
02-17-2012 10:27 PM
Up Hill Bill
Quote:
Originally Posted by flyinion View Post
Assuming I'm understanding you correctly (i.e. you're not saying they sound the same) it looks like I have nothing to worry about. Mine sounds like the 3rd video and does not have the very metallic sound that I now hear as being different in the first two. I'm just going to write it off to valvetrain/injector noise and no hood insulation unless the engine explodes in the next 50K miles
02-17-2012 10:11 PM
flyinion
Quote:
Originally Posted by Up Hill Bill View Post
Can you not hear the difference between the following two "tickers" and the third "normal" Pentastar?
Assuming I'm understanding you correctly (i.e. you're not saying they sound the same) it looks like I have nothing to worry about. Mine sounds like the 3rd video and does not have the very metallic sound that I now hear as being different in the first two. I'm just going to write it off to valvetrain/injector noise and no hood insulation unless the engine explodes in the next 50K miles
02-17-2012 09:52 PM
Getnwithit JUst looked up my born date 10/19 and thats my birthday! What are the chances? No ticking just sounds like a sewing machine...
02-17-2012 08:56 PM
Up Hill Bill
Quote:
Originally Posted by offcamber View Post
... We are all assuming ours is different, but the reality is this is a noisy engine ... I think the "bad head" issue is a myth. ... The reality is that there aren't any silent ones. Anyone that says theirs is, is either confused or not being truthful. ...
Can you not hear the difference between the following two "tickers" and the third "normal" Pentastar?


Quote:
Originally Posted by otnewt View Post
Quote:
Originally Posted by otnewt View Post
02-17-2012 08:30 PM
offcamber If thats an engine that doesn't tick, then I think I made my point. I hear "the tick" in yours too. I think in some cases the recording device isolates the noise better. The clip I took with my GoPro sounds about like yours did but the one i did with my iphone makes it sound loud and thats the one I posted.

I actually think that the dealership is right that the Jeep being lifted makes it sound worse because when you step away from the jeep the sound is bouncing off the ground and not as muffled. I feel better now!

Quote:
Originally Posted by PCBeachBum View Post
Something a little like this?
02-17-2012 08:04 PM
BigManAndy Jeep built on 9/11/11 and I took possession 9/22/11, 3500 miles and tick free.
02-17-2012 05:41 PM
PCBeachBum
Quote:
Originally Posted by offcamber View Post
We ran each one for about a minute or so. The first two we ran for probably 2 mins or so...and there is a bit more noise for the first 20 seconds or so but it is the same for that period on.

And BTW i'm not discounting those who have had troublecodes thrown or cracked heads, just saying that I think a lot of us overacted due to the problems you guys had and a few others and assumed that the engine noise was indicative of a problem.

I'll worry when someone posts a video taken the way I (and others did) and it doesn't have the ticking we hear with ours. So far no one has been able to do that.
Something a little like this?

Quote:
Originally Posted by Cyalume View Post
I'm trying not to become paranoid, but I had to upload a video of mine running.

I read some were wondering what the engine is supposed to sound like, I honestly think my engine sounds fine.

In the video the engine has just been started, after cooling down, so everyone could hear it during warm up. Wrangler currently has 1363 miles on it,. Date of manufacture was 11-11. There is some wind noise, from being outside.

2012 Jeep Wrangler Sport with Pentastar engine with no ticking - YouTube
02-17-2012 03:35 PM
offcamber We ran each one for about a minute or so. The first two we ran for probably 2 mins or so...and there is a bit more noise for the first 20 seconds or so but it is the same for that period on.

And BTW i'm not discounting those who have had troublecodes thrown or cracked heads, just saying that I think a lot of us overacted due to the problems you guys had and a few others and assumed that the engine noise was indicative of a problem.

I'll worry when someone posts a video taken the way I (and others did) and it doesn't have the ticking we hear with ours. So far no one has been able to do that.
02-17-2012 02:07 PM
PCBeachBum
Quote:
Originally Posted by offcamber View Post
Do yourself a favor, go by a dealership and have a salesman start one up for you. You'll see that they all sound the same. We are all assuming ours is different, but the reality is this is a noisy engine probably due to the fact that it's all aluminum and they design...I think the "bad head" issue is a myth. I've asked numerous times for someone to video their "silent" 2012 the same as those of us with "noisy" engines to compare and so far not a single person has been able to do so. The reality is that there aren't any silent ones. Anyone that says theirs is, is either confused or not being truthful. If they dispute that, they can simply post a video of theirs with the hood open and running like all of the folks with noisy ones have done...
Did you sit there and let each one on the lot warm-up? I was going to write about this in the "With Ticking" thread but I'll write it here first. Upon start-up there will be more engine noise than normal as the engine tries to warm itself up quickly and get oil that has settled back to everywhere it needs it. My JK and from what I gather from a lot of other people my/their "ticking" never tones down after warm-up. Going by a cold start up on a JK/JKU that probably has less than 25 total miles on it is not the comparison you want. A guy in the service department I use actually pulled up his personal 2012 DD up beside mine with both engines running and warm, and it was more than apparent to anyone there that my JK had a noticeable and out of the ordinary tick. That is the comparison you want to make.

Offchamber this really wasn't directed at you, just read more than a few people saying the dealer started one up on the lot that made the same noises so it must be normal and that is a bad comparison that people should be aware of.
02-17-2012 01:58 PM
offcamber Ouch, I didn't know you'd already gone through that! That would definitely make me want to see that it was done right!

I'd actually always heard that Jeeps were "problematic" but my first Jeep was an 85 CJ-7 when I was 16 in 1987. Since then I've had one Jeep after another, some used, most new (88 Comanche pickup, 87 YJ, 89 YJ, 79 CJ-5, 68 Wagoneeer, 2000 Grand Cherokee, 2003 TJ, and 2006 Commander) and I wheeled every one of them fairly hard. I have broken things but never anything that I thought was Jeeps fault. While a lot of my friends have had Toyotas and Landrovers and spent tons of time at the dealership service dept. I've enjoyed pretty much trouble free motoring!

Quote:
Originally Posted by Jk11-girl View Post
I agree with you BUT I just had repairs done to replace a cracked head. I got my '12 on 9/30. I have 9100 miles on it. Idk about the "ticking" I've never been outside of mine while it was starting and you may be correct in thinking that all '12's sound the same... I was told the cracked head was a factory default. I've heard of 3 other '12's on here with the same problem as mine. I actually started a thread asking about it....
Who ever said that Jeeps were problem free? I knew they had the potential to have problems before I got mine and I still wanted it.... It just comes with the territory!
Have fun and keep riding "tops down and bottoms up"!
02-17-2012 01:27 PM
Jk11-girl
Quote:
Originally Posted by offcamber
Do yourself a favor, go by a dealership and have a salesman start one up for you. You'll see that they all sound the same. We are all assuming ours is different, but the reality is this is a noisy engine probably due to the fact that it's all aluminum and they design...I think the "bad head" issue is a myth. I've asked numerous times for someone to video their "silent" 2012 the same as those of us with "noisy" engines to compare and so far not a single person has been able to do so. The reality is that there aren't any silent ones. Anyone that says theirs is, is either confused or not being truthful. If they dispute that, they can simply post a video of theirs with the hood open and running like all of the folks with noisy ones have done...
I agree with you BUT I just had repairs done to replace a cracked head. I got my '12 on 9/30. I have 9100 miles on it. Idk about the "ticking" I've never been outside of mine while it was starting and you may be correct in thinking that all '12's sound the same... I was told the cracked head was a factory default. I've heard of 3 other '12's on here with the same problem as mine. I actually started a thread asking about it....
Who ever said that Jeeps were problem free? I knew they had the potential to have problems before I got mine and I still wanted it.... It just comes with the territory!
Have fun and keep riding "tops down and bottoms up"!
02-17-2012 12:57 PM
offcamber Do yourself a favor, go by a dealership and have a salesman start one up for you. You'll see that they all sound the same. We are all assuming ours is different, but the reality is this is a noisy engine probably due to the fact that it's all aluminum and they design...I think the "bad head" issue is a myth. I've asked numerous times for someone to video their "silent" 2012 the same as those of us with "noisy" engines to compare and so far not a single person has been able to do so. The reality is that there aren't any silent ones. Anyone that says theirs is, is either confused or not being truthful. If they dispute that, they can simply post a video of theirs with the hood open and running like all of the folks with noisy ones have done...


Quote:
Originally Posted by silvrevo View Post
Ummmmm scratch that!!!

I noticed a ri kticktickt sound on the driver bank today!

Lifted hood,ear down to it,,,sounds like lifter clatter to me,,,pasaenger side quite!

310 miles.

And a call into service manager to see if he has heard about these bad heads.

Awwwhhhhhhhhhhawwwww fudge!!!
02-16-2012 08:18 PM
silvrevo
Quote:
Originally Posted by silvrevo View Post
1-12

Its still fresh!!!

Pretty much off the line-truck-dealer-me.

Its smoooth
Ummmmm scratch that!!!

I noticed a ri kticktickt sound on the driver bank today!

Lifted hood,ear down to it,,,sounds like lifter clatter to me,,,pasaenger side quite!

310 miles.

And a call into service manager to see if he has heard about these bad heads.

Awwwhhhhhhhhhhawwwww fudge!!!
02-16-2012 08:12 PM
otnewt
Quote:
Originally Posted by offcamber View Post
My theory is that they all sound the same. Even those that "don't tick" really do, it's just a difference of opinion. Went back to the dealer today and asked him what sort of diagnostics they did on mine and they said they didn't. They just compared its sound to the ones on their lot. I got a little upset but they offered to have me come out and listen. So they grabbed a bunch of keys and I listened to 7 in a row. Every single one of them sounded exactly the same as mine. So, what are the odds that there is a problem with 7 of their 14 Jeeps? I'd guess pretty low. I really wish someone who "supposedly" has a jeep that doesn't tick would record it and post a video. I'll bet it just sounds like mine and they dont know what to listen for...

subscribing in the hopes that a few people with non-ticking pentastars posts up some videos to compare. please please PLEASE!!!
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