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Rockers and Camshafts damaged? 32,000 miles?

25K views 45 replies 20 participants last post by  Zaedock  
#1 ·
Sooo...I have a 2016 MY Sport 2/Dr w/manual. Only options were AC and premium softtop. The biggest mod’s so far were adding 15” aluminum wheels w/33x10.5 tires and Apple car play radio w/couple small subs, amps and new speakers.

Been loving it since I took ownership as new in Oct 2015.

2 oil changes ago (at dealer) I asked the dude about ticking in the motor. He said oh “that’s normal Jeep sound”. But stuck the computer diagnostic thing in and said, “yup, your good. Only thing that came up was your after market radio not registering”.

I had the oil changed again at about 31,000ish miles about a month ago.

Well last week I was having coffee in my Jeep when a fellow Jeeper walked up. We talked for a bit. Then he said, “the reason I came over you need to get your Jeep in, that ticking means there is an issue and you want it fixed. It’s covered under warranty.”

So two days later I took to the dealer and explained. He again did diagnostic and said all good. I asked if they could take a good look at it even if I had to pay a minimum “diagnostic” fee. That I wanted something in writing as my bumper to bumper warranty is up in a couple thousand miles. He said they don’t charge their customers diagnostic fees and agreed to look at, but needed to keep overnight. Ok, no problem.

Next day got a VM from him saying they did find an issue. Covered under warranty. Can pick up in the next day.

My sheet says “FOUND WORN ROCKERS AND DAMAGED CAMSHAFTS. REPLACED ALL 4 CAMS AND ALL ROCKERS - ROAD TESTED”

So....is this normal? What caused? What do I do to prevent? I have done some light trails, but honestly most I have done could have been done with any vehicle. Absolutely nothing hard or stressful. It’s mainly a daily....

Any ideas what this would have cost if not warranty?
 
#2 ·
Same thing happened to my sisters Jeep at 45k, same year and everything. Repaired under warranty but she sold it not too long after so I haven’t kept up with it. Seemed extremely strange to me as well and it’s definitely interesting to hear she isn’t the only one to have this problem...
 
#3 ·
I’m doing the same. My original plan was to keep 2 years and sell. But life got in the way and so now I’m at (almost) three years. I will “likely” sell summer next year and get order a 2020 JL. Hoping they will have a Willy version by then (tho I’ll save my lunch money for Rubi if I have to).

But that seems like a pretty serious issue for such a new vehicle.
 
#4 ·
I'm most surprised that they had camshafts and rocker arms just sitting "in stock" and that they did the repair in 24 hours with no back and forth with FCA. Did they give you a list of the part numbers replaced? Something just doesn't sound right here.
 
#6 ·


Here’s what the repair list looked like when I ha sled it for my sister. Only took 24 hours for them as well...dropped it off on a Sunday and picked it up that Monday afternoon. Don’t know why they’d try to pull a fast one with a warranties repair...
 
#15 ·
Here is mine. And yes the “ticking went away”. I put in quotes as it still sounds a bit different than most engines I’ve heard. But it is definitely way better and not a constant ticking.

I took my Jeep in on Thursday morning. They called Friday to tell me it wouldn’t be ready till Monday afternoon. But then he called mid morning on Saturday and said I could pick up as ready. When I got there the dude said the mechanic wanted the OT and came in early Saturday to finish.

Image
 
#17 ·
So they didn't replace the lifters like they did on the other Jeep? That seems odd for sure, as when changing camshafts with 32k miles on them the lifters were certainly worn in to the camshaft lobes. Yes, most would consider this a fairly major repair.
 
#20 ·
Thanks. I will certainly ask. Humm...that also might move up my timetable on selling. Maybe see what is offered in the JL for 2019.

I bought a base sport as it was my first Jeep and didn’t want to put in a lot in case I really didn’t like, not a lot to lose in a year. Of course I love! But would like better gearing and a few other things (I’d like a Willy, but no need for a Rubi).
 
#21 ·
Was there in codes attached to this by chance?




Thanks. I will certainly ask. Humm...that also might move up my timetable on selling. Maybe see what is offered in the JL for 2019.

I bought a base sport as it was my first Jeep and didn’t want to put in a lot in case I really didn’t like, not a lot to lose in a year. Of course I love! But would like better gearing and a few other things (I’d like a Willy, but no need for a Rubi).
 
#31 ·
So....is this normal?
i drove a '95 taurus for years..i loved that car. finally traded it in at 286k miles. the ONLY stuff I ever did was, idler pulley, waterpump, radiator. I dont even think I changed the spark plugs bwhaha.

mopar can make products like that. hell anything made before the 1950's was solidly made. but its more lucrative when things 'conveniently' break... imho..
 
#32 ·
I'll drag myself into this too. My 2013 had the left side tick at about 70k. The right side was done at 140k. I discussed a lot over the years with my tech so this is simply going to be be bit blunt, they know there's was a manufacturing issue, it's known throughout but it's a wait and see if a Jeep has the issue before just getting in and repairing it.

From what I've been told it was a part qc issue and until in the engine and run, they didn't know. New parts have supposedly been made different and shouldn't have the issue. Since each side was done at different times, I'm hoping I don't have a future left side issue from an in between 'testing' stage. I have driven 90k on the new left side set now with no issues - both cams and rockers had wear on both sides when pulled.

I have photos around here somewhere, I always stop over and take a few during my teardown stage. Since it's such a well known issue, it doesn't surprise me they would approve the fixes so fast, nor does it surprise me that they had parts available since it's common enough.

As a side note - mine was ticking quite well for awhile I since I knew what it was, I wasn't overly concerned really. I called ahead to my service manager and said I had the tick on the right side and he had everything set up for me when I had the time, down to the loaner. I did pop a CEL the last week prior to getting it fixed, but I can't remember what the code was.

Also, for those using this thread as research in the future, don't confuse the tick, ticking, cam and rocker issues, for the 2012 AA, AB, AC head issues. Two separate issues.
 
#35 ·
I discussed a lot over the years with my tech so this is simply going to be be bit blunt, they know there's was a manufacturing issue
ty for stating this outloud. my thoughts exactly.

of course they know. its doesnt bode well for upgrades if they make a vehicle that lasts 300k +. same reason apple is “shit”. same reason nikes wear quick. its economics 101.

tbh we put up with a ton from mopar and yet we still stand behind the brand. thats why i love this community. we embrace all the ups and downs and endure through it, through the forums and trail meets, together. and after we end up rebuilding the whole truck ourselves we are dam near ase certified but that much more wiser for it(silver lining)

but ask urelf this question. do you really think that with all the expertise we have in car making, period, we couldnt man-u a jeep that runs its ass off?? with no issues?? i mean the fact i gotta crack my valve cover and im not even a “tick” over 100k miles is ludacris. i had a ‘95 taurus and traded her in at 280k miles and all i ever did was a dam waterpump and radiator.

a ford.

jeep can make great engines. really great engines. but its much more profitable to build a sh*t one instead.

just my 2cents.
 
#34 ·
Photos from the right side - May 2019... It's been doing good since.
 

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#39 ·
I had the warranty take care of it for me. Since I bought it in 2013, and started seeing the 2012 issues, I bought the Maxcare while I had the chance. The history of the Pentastar engine is complicated as well. It was an engine being designed by Mercedes while it was Diamler-Chrysler. German technology. During the separation, Jeep was allowed to keep the plans for the engine, and continued to finish it. I don't know if there were issues during this or not, but obviously the 3.6 has been retweaked a few times since and used in other configurations in different models too. I don't blame the design as much as I blame the quality control or engineering requirements of the parts themselves. It's all new though too, working the bugs out takes time and especially testing, and I don't see much testing done through 300k miles of wear and tear.

There were head issues in 2012 as well that proved out to be a quality control issue missed in the factory itself. That was an interesting time. The large machines are made to have certain tolerances while machining parts. They are supposed be to calibrated of course as well. Something went wrong though and even passed quality control. When the factory (Toledo) shuts down for "summer break and reset" the machines must have all been checked and re-calibrated. I say this because the left side AA head that had issues also has a julian stamp code earlier than the break. The day the plant reopened in July 2012 to make the 2013 models, was the julian stamp date of the AC head which is supposed to be the good head. There was an in between AB head, made from around April to shutdown in July, it's thought that they saw it was off spec, but couldn't get it fully calibrated at the time. Search my username, I put input and photos in two older threads for the heads as well.

At this point, I don't know if I would own a Jeep if I didn't have the warranty, I think mine would have been traded in long ago actually - which is sad considering my TJ's didn't have these issues. I am also disappointed they no longer have the same Maxcare I do which also has delayed me in buying another Jeep, I'm waiting it out a bit now.
 
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#41 ·
make sure they check the cams lifters and oil control valves and phasers. all those parts are wearable engine parts. they wear together. and since theyve all been wearing with a bad rocker they might need to all be replaced.

if you have to crack the valve cover swap as much mopar oem parts as you can. itll cost you a lil more but if youre gonna pay someone to do it might as well change most of the valve train in one shot.
 
#42 ·
I noticed the ticking on my 14 (35,000 miles) about a year ago. It was noticeable at start up and RPMs over 3k. I recently switched over to mobile 1 5W30, the ticking at start up stopped instantly. It has taken roughly 500 miles for the RPM tick to go away. This of course after I bought rockers, lifers, and gaskets to replace them all. I guess I’ll save it all in case the tick returns. I’m still tempted to just tear into it and replace them all now.


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#43 ·
I noticed the ticking on my 14 (35,000 miles) about a year ago. It was noticeable at start up and RPMs over 3k. I recently switched over to mobile 1 5W30, the ticking at start up stopped instantly. It has taken roughly 500 miles for the RPM tick to go away. This of course after I bought rockers, lifers, and gaskets to replace them all. I guess I’ll save it all in case the tick returns. I’m still tempted to just tear into it and replace them all now.


Sent from my iPhone using Tapatalk
get the devil(mopar parts) out of your valve bed. 💯💯.
 
#44 ·
i have a 2020 jeep gladiator and i had the same issue except the dealer told me not to worry about it and so i didn’t now the noise is extremely loud and i took it in and they said i have to replace the camshaft the lifters and all my rockers. with id expensive and sucks i might add if it wasn’t already obvious. goes to show that something isn’t right with the engine if this many people are having problems