TSB NOTICE!

[Swisskidd]

Technical Service Bulletin.

Meant to help dealer techs as a heads up, like if you see X, the cause is probably Y, here's the fix Z.

But here, it will make all the self diagnosers and oil PhD's run to the dealer with no issue and go I KNOW THERE'S A TSB.

Which, as of this moment, there is no camshaft TSB issued for any model year Gladiator.

My dealer replaced the RH intake cam on my 2025 JT at 14,800 miles using TSB 09-011-25.

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[Dilly’S Willy]

My dealer replaced the RH intake cam on my 2025 JT at 14,800 miles using TSB 09-011-25.

Not this one, this is one of the older (more common) cam related TSBs.

I'm not 100% that THIS one is the correct TSB, but it does mention they reflash the PCM to increase oil pressure at startup. TSB: 18-006-26.


I'm not having any luck researching TSBs via google anymore, even trying to include "nhtsa" in the search would usually provide a .gov link, but it's not showing up anywhere.

I hate this "modern" internet, everything is censored unless you do 10 things to browse "privately" now...before COVID you could search and actually find results based on your search, and there wasn't "AI produced" results either.

 

[sharpsicle]

Not this one, this is one of the older (more common) cam related TSBs.

I'm not 100% that THIS one is the correct TSB, but it does mention they reflash the PCM to increase oil pressure at startup. TSB: 18-006-26.


I'm not having any luck researching TSBs via google anymore, even trying to include "nhtsa" in the search would usually provide a .gov link, but it's not showing up anywhere.

I hate this "modern" internet, everything is censored unless you do 10 things to browse "privately" now...before COVID you could search and actually find results based on your search, and there wasn't "AI produced" results either.

It was literally the first result when I googled TSB 18-006-26.

https://oemdtc.com/tsb/?number=11028233

 

[Stan H]

I get a horrid metal screeching sound randomly for a fraction of a second at low rpms, I have 6k miles and it has done it since new.

Just as you accelerating ? Or is this while turning at low RPM or it this a brake issue ? Try slightly holding the brakes and then taking off.

 

[White Eagle]

Just as you accelerating ? Or is this while turning at low RPM or it this a brake issue ? Try slightly holding the brakes and then taking off.

Just idling forward

 

[rhaney02]

I get a horrid metal screeching sound randomly for a fraction of a second at low rpms, I have 6k miles and it has done it since new.

That's just the wife in the passenger seat....

 

[ShadowsPapa]

Not sure if this has been posted already. Jeep created a TSB for the 3.6 related to the cams high profile lift system.

Essentially the TSB is for the oil pump/actuator that engages the high lift lobe, activating prematurely when RPMs are below the required RPM to activate, causing failures and sometimes catastrophic failure.

They won't tell you about this at the dealer unless you come in for a symptom due to this or another cam issue. Even if you go in for a cam issue, they may not tell you about this TSB. I only found out when I asked about an intermittent rattle around 3,200rpm and heavy engine load in 3rd gear. They very briefly mentioned it and I asked because I'm nosy for knowledge.

It's not as common as the lifter failures. It's not as common as any other failure it seems. But it does happen, and they do know about it. So if you think this is happening to you, ASK THEM.

Without SEEING the TSB - this is meaningless. Why? Because the high lift mode can kick in at under 3,000 RPM which is when the high volume mode of the pump comes in. IF the PCM detects a heavy torque load/need, it will trigger the high lift intake mode.

 

[ShadowsPapa]

My dealer replaced the RH intake cam on my 2025 JT at 14,800 miles using TSB 09-011-25.

That one isn't much - it simply says "fix with these parts" and they blame it on a manufacturing issue. Talked about elsewhere in the forum..........

I'm not 100% that THIS one is the correct TSB, but it does mention they reflash the PCM to increase oil pressure at startup. TSB: 18-006-26.

No need to reflash because these DEFAULT to starting in high volume mode! It's the default, always has been. We've talked about this for years, too. Change the cluster to display the oil pressure, shut it down. Wait a bit and restart it - it starts in high volume/high pressure mode as you can see on the display - mine jumps to over 70 then slowly falls after I start it.

Again, unless I see the TSB they are referring to, so far it's just a lot of smoke. Nothing of substance, and no, nothing you have said would be a change.

These have always started in high volume pump mode.
They will switch to high lift mode as needed, not just over 3,000 RPM. (as per Charles here, a former MOPAR tech)

 

[ShadowsPapa]

It was literally the first result when I googled TSB 18-006-26.

https://oemdtc.com/tsb/?number=11028233

Did you see that applies to the 2021 model year only?

Mine have always started in high volume mode. It's the default.
Looks to me like it's more for a list of other things. I'd sure not rely on a TSB for the 2021 model year only to help the cams of all other years.

 

[Bandit’s Lair]

Time for a bunch of over anxious wieners to flood their local dealers.

Ready to go!!

 

[ShadowsPapa]

Time for a bunch of over anxious wieners to flood their local dealers.

Yeah, they'll take this all totally out of context and view it as a cam fix and it IS NOT.
It's for the 2021 model year, and mine have always started in high volume mode - it's the default until the solenoid is triggered to lower it. Since the same cam issues have taken place in the 22, 23, 24, 25 model years - this isn't a "fix" and isn't likely to be. If it was a thing - why does it not say "2021-2025 model years" ????? It says only 2021 model year. That sort of suggests they only had an issue with the 2021 model year, does it not?

 

[Bandit’s Lair]

Mine is a 21’……..

 

[ShadowsPapa]

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation (Manual Transmission Only). ● P152F – Engine Hood Switch 2 / Engine Hood Switch 1 Correlation.** ● P0300 - Multiple Cylinder Misfire. ● P152E - Engine Hood Switch 2 Circuit High. ● P0032 - O2 Sensor 1/1 Heater Circuit High. ● P0038 - O2 Sensor 1/2 Heater Circuit High ● P0052 - O2 Sensor 2/1 Heater Circuit High ● P0058 - O2 Sensor 2/2 Heater Circuit High. ● P0132 - O2 Sensor 1/1 Circuit High. ● P0138 - O2 Sensor 1/2 Circuit High. ● P0152 - O2 Sensor 2/1 Circuit High. ● P0158 - O2 Sensor 2/2 Circuit High ● P2100 - Electronic Throttle Control Motor Circuit Customers may also comment on one or more of the following: ● **"Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection (Manual Transmission Only). NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC. ● Vehicle is in limp home mode.** ● Spark knock/detonation sound from the engine at idle.


This part makes little sense - pressure doesn't lubricate -

**Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability.** This bulletin involves reprogramming the PCM with the latest available software.

Note the first sentences - you can't run in and demand this - you MUST experience the MIL and one of the DTCs they list.

This isn't a fix for cams.

 

[Bandit’s Lair]

No worries. If the Jeep isn’t limping on 3 cylinders and doing the death rattle it doesn’t go into the Stealership.

 

[Stan H]

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P08A6 – Gear Lever Position Sensor System – Multiple Sensor Correlation (Manual Transmission Only). ● P152F – Engine Hood Switch 2 / Engine Hood Switch 1 Correlation.** ● P0300 - Multiple Cylinder Misfire. ● P152E - Engine Hood Switch 2 Circuit High. ● P0032 - O2 Sensor 1/1 Heater Circuit High. ● P0038 - O2 Sensor 1/2 Heater Circuit High ● P0052 - O2 Sensor 2/1 Heater Circuit High ● P0058 - O2 Sensor 2/2 Heater Circuit High. ● P0132 - O2 Sensor 1/1 Circuit High. ● P0138 - O2 Sensor 1/2 Circuit High. ● P0152 - O2 Sensor 2/1 Circuit High. ● P0158 - O2 Sensor 2/2 Circuit High ● P2100 - Electronic Throttle Control Motor Circuit Customers may also comment on one or more of the following: ● **"Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection (Manual Transmission Only). NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC. ● Vehicle is in limp home mode.** ● Spark knock/detonation sound from the engine at idle.


This part makes little sense - pressure doesn't lubricate -

**Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability.** This bulletin involves reprogramming the PCM with the latest available software.

Note the first sentences - you can't run in and demand this - you MUST experience the MIL and one of the DTCs they list.

This isn't a fix for cams.

Speaking of High idle, when it is very cold it will stay idling above 1500rpm until it gets up to about 152°F-159°F .. now I mean it does this when it is zero or negatives outside.

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