TSB NOTICE!

[ShadowsPapa]

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.

Mine does about 1400 for a while - but slowly drops well below those temps. Heck, my 4.0 idles about 1200 when it's first started cold.
Makes me wonder when people ask about such a thing if it's their first vehicle.............

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[Dilly’S Willy]

I'm not saying the linked TSB is the one I was referring to, because I cannot find the TSB online (without an affected vin) and they keep censoring the web more each day.

I'm well aware of the high pressure on cold/first starts, that's not what I was referring to in the initial post either. That's normal for self testing purposes, just like the ESS test.

I did state the dealer didn't want to give much info since mine wasn't affected, they thought it could be, but isn't.

The TSB I'm referring to is NOT about the high pressure at cold starts.

The TSB I'm referring to is about the high pressure being triggered when driving normally below 3000rpm, as it is NOT supposed to kick in below that rpm (other than cold start/first start). They said you would know if you had this issue because it would trigger a CEL after it happens even once sometimes.
- The TSB requires them to reflash the PCM to correct the issue, and if there's "excessive wear" they also change the cam and a couple other things iirc.


That's all I can remember. And most people shouldn't be worried unless they don't maintain their vehicle like they should AND have issues related to this already. But it's nice to have written proof they did make a TSB to refer to, unfortunately I don't have access to the TSB.

 

[Swisskidd]

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

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..........

Fully aware. My reply was merely for the statement by someone else that there isn't a camshaft/valvetrain TSB for the Gladiator.

 

[White Eagle]

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

I will say historically in my lifetime, if I haven’t had a problem in the first few thousand miles, I usually stay problem free to well over 130K. I think its because I push the hell out of them.

 

[Swisskidd]

I will say historically in my lifetime, if I haven’t had a problem in the first few thousand miles, I usually stay problem free to well over 130K. I think its because I push the hell out of them.

I see many posts about pushing the engine (within reason), rather than constantly lugging it at lower RPMs. My experiences are the exact opposite. The engines in my 2020 GC and 2023 JL2Door were far less pushed than the engine in my 2025 JT. An I live in FL, with only a couple trips through GA, AL, NC, TN annually. Yet, the RH intake cam wiped out just below 15K miles (and my build date is newer than the window described in the TSB.) It's just sad. My confidence in the engine is minimal at this point. Did 4 oil changes within the first 10K miles - didn't make a difference.

 

[ShadowsPapa]

I'm well aware of the high pressure on cold/first starts, that's not what I was referring to in the initial post either. That's normal for self testing purposes, just like the ESS test.

Nothing to do with self-tests, POST and so on. It's the default to expedite oil into the engine galleries and so on at a cold start. There's nothing to test there.

The TSB I'm referring to is about the high pressure being triggered when driving normally below 3000rpm, as it is NOT supposed to kick in below that rpm (other than cold start/first start). They said you would know if you had this issue because it would trigger a CEL after it happens even once sometimes.
- The TSB requires them to reflash the PCM to correct the issue, and if there's "excessive wear" they also change the cam and a couple other things iirc.

The problem is - I think you are getting faulty info from the dealership - you can't show the TSB and the number you refer to has been shown already, what was linked to is the EXACT TSB you mentioned by NUMBER.

High pressure coming in at under 3,000 RPM is NOT a problem. ALL IT DOES is increase oil pressure! Nothing else. It doesn't happen, but if it did I'd sure never complain about HIGHER oil pressure. It would only reduce your mpg by a fraction of a fraction of a percent. High oil pressure only means more oil going through faster. You talk like oil pressure increasing below 3,000 is a problem - it's not how it's supposed to happen but won't do damage, either.

The only way to know about wear on cams is to tear the valve covers off - there's no other way.
High oil pressure has NOTHING to do with cam wear!

I'm not saying the linked TSB is the one I was referring to, because I cannot find the TSB online (without an affected vin) and they keep censoring the web more each day.

I don't know where you are getting that BS - these are public record, and that TSB you mention the number of was found by a member here and linked to.
My gut says you got some horrible info from someone at a dealership who didn't know their head from another part and that's really common when talking to "service advisors". There is no censoring of the web. And TSBs are freely available. I suspect there simply is no TSB like you describe. The number you gave is the only one even similar.

High oil pump pressure does nothing to wear cams!

 

[Dilly’S Willy]

Nothing to do with self-tests, POST and so on. It's the default to expedite oil into the engine galleries and so on at a cold start. There's nothing to test there.



The problem is - I think you are getting faulty info from the dealership - you can't show the TSB and the number you refer to has been shown already, what was linked to is the EXACT TSB you mentioned by NUMBER.

High pressure coming in at under 3,000 RPM is NOT a problem. ALL IT DOES is increase oil pressure! Nothing else. It doesn't happen, but if it did I'd sure never complain about HIGHER oil pressure. It would only reduce your mpg by a fraction of a fraction of a percent. High oil pressure only means more oil going through faster. You talk like oil pressure increasing below 3,000 is a problem - it's not how it's supposed to happen but won't do damage, either.

The only way to know about wear on cams is to tear the valve covers off - there's no other way.
High oil pressure has NOTHING to do with cam wear!



I don't know where you are getting that BS - these are public record, and that TSB you mention the number of was found by a member here and linked to.
My gut says you got some horrible info from someone at a dealership who didn't know their head from another part and that's really common when talking to "service advisors". There is no censoring of the web. And TSBs are freely available. I suspect there simply is no TSB like you describe. The number you gave is the only one even similar.

High oil pump pressure does nothing to wear cams!

Oil pressure being too high absolutely CAN cause damage. This was an issue years ago when people were using 13mm STi pumps in their subarus instead of the 11mm or 12mm oil pumps, and they took out engines consistently if they weren't designed for the pressure/flow at those rpms.

You are right that sometime SAs don't really know what they're talking about, but this time it was one of 3 tech at that dealer, and they also have him trained as their assistant service manager too. COULD they be blowing smoke up my ass, maybe. But what incentive would they have to do this knowing I'm also a tech, that doesn't have that type of related issue, and openly talks about having trust issues with dealers...for similar reasons to this?

The web is also highly censored, and if you honestly believe it isn't, get your head out of your ass (anyone who believes this).
- 1 real world example: Back around 2015 I was researching downpipes for my rally car (subaru), I was comparing catted to catless, and the differences between brands and versions. Over the course of 3 months I was able to find several options, but every few weeks some of the options wouldn't show in the search results, so I loaded the same pages I used from browser history instead to try as a fix. No luck, the links from history produced the same reduced results, even on the vendor pages from history. A few more weeks went by (after I ordered/received the DP I wanted) just to see if the issues I had were fixed, or maybe a new law was passed. Nope, this time there were still less results than either time previously, except now vendors weren't allowing you to even view catless options consistently, or the pages were changed to state things like "off-road use only" or "not for use of road registered vehicles". Not too long after, performance shops were getting raided and shutdown across the US for modifying road registered vehicles.

OR when Kawasaki stopped providing simple maintenance specs in the owners manual anymore and moved most of it to the service manual...things like valve adjustment specs are damn important for owners to have easy access to.


We can agree to disagree, sometimes you find stuff I say to be wrong, and vice a versa. We both have valuable knowledge to share, sometimes more to some than others. Could the dealer have misinformed me of something, possibly. But when I can't even find recalls/tsb for my own vehicle without providing a VIN anymore, when you were able to find recalls/tsb by year/make/model before, yeah I'd call that censorship, why would they hide previously available info.

If an admin thinks this thread should be removed, by all means please do. I thought about this conversation while remembering other things I needed to do with the truck and thought maybe it could be useful. Apparently it isn't, so feel free to remove the entire thread.


Hope everyone is having a good weekend.

 

[ecidiego]

Trust me bro

I've got it under the same authority that the SRT Gladiator is almost here.

 

[sharpsicle]

TSB Instructions:

Step 1: Evaluate customer and provide vague information that sounds good.
Step 2: Perform checks and diagnosis that provide no real function other than to raise billable hours.
Step 3: Loosen customer's tinfoil hat. Too tight and it can cut off circulation to the brain.
Step 4: Advise customer to monitor the vehicle and return to a different dealership if the claimed issue returns.

 

[ShadowsPapa]

Oil pressure being too high absolutely CAN cause damage. This was an issue years ago when people were using 13mm STi pumps in their subarus instead of the 11mm or 12mm oil pumps, and they took out engines consistently if they weren't designed for the pressure/flow at those rpms.

That's a huge stretch on these engines. There are people that run 70-80 on low RPM engines for decades. You can cherry pick an example - I'd love to know how they "took out engines". Split them apart?
You realize these have pressure relief valves, right? I'd bet the dorks with the subarus were doing something else stupid. Exactly how did they "take them out"?

You are not going to be breaking things running these at 70 psi at lower RPM.

I've built engines for many years - for street or strip. I know how oil pressure works and have details of the 3.6 oiling system. It's not going to break.

The web is also highly censored, and if you honestly believe it isn't, get your head out of your ass (anyone who believes this).

LOL - a guy who has worked IT for decades, IT for government, for a huge financial company with billions in resources - LOL - you think I have my head up my ass?
Censored? Give me a break. I made a living in this stuff after changing careers (but never stopped having my own shop)

Maybe you need to learn some new search methods - TSBs are easily found. I think you had horrible, misleading info.

 

[ShadowsPapa]

TSB's normally have a number.

It might be a NHSTA alert, which is a concern, not yet a TSB, and not yet a recall.

I shall search ........

Could be a rapid transmittal thingy, too - but all of this is just bordering on "WTF, where did that come from"

 

[Dilly’S Willy]

LOL - a guy who has worked IT for decades, IT for government, for a huge financial company with billions in resources - LOL - you think I have my head up my ass?
Censored? Give me a break. I made a living in this stuff after changing careers (but never stopped having my own shop)

You worked in IT for the gov, and you honestly expect me to believe they don't censor things. For THAT statement, yes, get your head out of your ass.

Every heard of Project MK Ultra? Yeah, the gov doesn't try to censor anything.

This is why I stopped bothering being nice, too many ignorant people out there.


Hope everyone has a good week and no major problems with their JTs.

 

[Jrgunn5150]

The shadow lizard people definitely censored your trust me bro TSB you imagineered in your head.

 

[Jrgunn5150]

People who think being an insufferable gash while spouting about FACTS and FEELINGS are always the most fun

Typing anything in ALL CAPS makes it a fact fellas, no TSB number needed. There you have it, proof.

 

[ShadowsPapa]

Apparently seniority is more important than facts to some. Starting to see what people mean when they talk about how the jeep forums are "special". And before you chime in just to run your mouth, maybe contribute something positive to the thread, instead of your ignorant opinion.

Because that's what this thread was started for, info related to a TSB that I was informed of partially by a local dealer. and couldn't find a thread when searching. Maybe you had good results but I did not. Take a nap ya grump old farts.

Facts have been my life. It's why a partner and I started TheAMCForum years ago to dispel the crap out there and get facts out. We have a historian on board and former employees but people still see what they have heard or been told for years I stead of the bulletins posted, and hearing from people who worked there.
I may have "seniority" to some but that comes with shelves full of awards and trophies and years in the automotive field with a zero comeback record and setting records for troubleshooting. I was building engines and designing alternative designs and fuel systems in high school. I come with facts based on factory and college training and decades in the field.
Back in the 1980s I got a call from the manager of Iowa's largest dealer offering me the service manager position ....not for an interview or to fill out an application, but to say it was mine if I wanted it. They knew my reputation. In about 2001, Symantec offered to fly me to CA to take the head QA spot for their corporate security products.
You only get offers like that by being good at your job and a rep for honesty.
So, It might mean that now and then, I get things correct.
I'm currently checking/evaluating multiple products for jeeps and doing beta testing for a dvr product.

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