Latest TSB on the Pentastar engine

[carlos c]

Does anybody find out more about the new TSB on the Pentastar engine?

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[flyer92]

Thanks for the heads-up! Here are a couple links I just found. The second one takes you to the TSB that you can download.

StellPower Article

Download TSB Here

 

[mrtm1970]

Figure I'd ask this question here...

WHAT is considered "Rough idle" and "ticking"? I thought I was having "rough idle" & "ticking" and found my piston heads dry as a bone and the engine making the same noises and slight vibration at idle now after replacing the Left Intake Cam Shaft, Lifters & Rockers (kept Left Exhaust alone as I was starting to strip one of the bolts before it was even starting to turn) and Right Side Intake & Exhaust Cam Shafts, Intake Rockers & Lifters & Exhaust Rocker Assemblies, that I had before I did any of this work with the engine having 127,000 miles on it.

 

[IceBerg]

Thanks for sharing!

 

[ym0bc1]

There is a
special service kit for this type of repair which should be used instead of replacing the complete engine/long
block. Camshaft kit number(s) 68661147AB (Right Intake) and/or 68661146AA (Left Intake). These kits contain
the parts required for the repair (intake cam, rocker arms, sealer and gaskets).

Seems interesting. Anyone knows what service kit this is?

 

[beachbumm78]

Perfect! Thanks for sharing. I was just going to look this up. I’m literally on my way to drop my jeep off at the dealership for this exact issue! The part was on nationwide back order and it finally came in.

 

[flyer92]

Perfect! Thanks for sharing. I was just going to look this up. I’m literally on my way to drop my jeep off at the dealership for this exact issue! The part was on nationwide back order and it finally came in.

Best of luck with the repair and please keep us posted on how it all turns out. Did your engine actually throw a code or is it just the rough idling and ticking? How many miles do you have on the engine?

Since we're on this topic, are TSBs beyond warranty/mileage limits done free of charge? I suspect not, but just wanted to see what folks are experiencing out in the wild.

 

[GabeBoyTheGreat]

Since we're on this topic, are TSBs beyond warranty/mileage limits done free of charge? I suspect not, but just wanted to see what folks are experiencing out in the wild.

I was just about to ask this. I also have some additional questions:

1. If I understand correctly, Stellantis has identified the root cause of the infamous 3.6l ticking issue and has issued a TSB?

2. It sounds like the parts have been either redesigned or the manufacturing has changed to prevent the issue from occurring again after the parts have been replaced?

3. It sounds like this issue should NOT affect vehicles built after August 2024?

 

[AmericanPatriot100]

Following

 

[JKJ]

So is the circled 0814 on my window sticker the build date? Don’t see the info on the build sheet. If so, it looks like made the cut by one day. No issues yet. Just wondering.

 

[Tr4ckD4ys]

I was just about to ask this. I also have some additional questions:

1. If I understand correctly, Stellantis has identified the root cause of the infamous 3.6l ticking issue and has issued a TSB?

2. It sounds like the parts have been either redesigned or the manufacturing has changed to prevent the issue from occurring again after the parts have been replaced?

3. It sounds like this issue should NOT affect vehicles built after August 2024?

1. The TSB does not specifically state or deny that. Ticking could have multiple sources. The TSB refers to valvetrain noise as a potential symptom, not exclusive symptom.

2. This is also not explicitly confirmed or denied in the TSB. The only conclusion that can be drawn is that post certain production dates or using repair kits as per the TSB is meant to resolve the symptoms.

3. Again, being brutally accurate with the TSB, it does not state that the issue does not affect newer vehicles. It only states that newer vehicles are not included in this TSB.


You can draw your own conclusions based on that.

 

[gm920]

So is the circled 0814 on my window sticker the build date? Don’t see the info on the build sheet. If so, it looks like made the cut by one day. No issues yet. Just wondering.

No, your build date is on the decal on the drivers door jamb.

 

[Gorilla57]

Does this mean that Jeep/FCA is on the hook, even for JL’s outside warranty?

 

[JKJ]

No, your build date is on the decal on the drivers door jamb.

So the door jamb says 8-24 and the tsb splits the month on 8/15/24. Any way to nail down to the day? Tried build sheet, vin decoder etc.

Or did they start building ‘25s on 8/15??

I had a 17 Grand Cherokee made in August of 16, with the 16 75th anniversary package.

 

[Brad Hearing]

ok so im reading that this is only for the "upgraded" version of the engine - so not a turbo or 4xe. that means us regular loser 3.6s are safe? besides being a loser that is

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