that_guy: Do you have trouble reading? Chrysler TSB 09-05-00: "Engine combustion blow-by gases, oil vapor, and air from the crankcase filter/breather may be drawn past the leaking plenum pan gasket and into the intake manifold."

Do you even know what an intake manifold is and what a plenum is? It doesn't sound like you do. But that's about what I'd expect from a 13-year old Internet troll who likes posting huge, childish videos and tinfoil hat pictures on Dodge Forum threads. FYI, since you so obviously know little or nothing about car engines, here's some information:

 

I don't know why you felt a compulsion to jump into this thread, but you're mischaracterizing my point. The design flaw that causes plenum pan gasket blowout is what makes the oil service interval inadequate. If the gasket doesn't leak, the factory service interval may be sufficient. The Chrysler engineers that devised the service interval weren't aware of the gasket issue at the time the manuals were written. The Chrysler engineers are very smart. It's the Internet troll that_guy that I'm making fun of. Because that's very easy to do.

Good for you. You are very lucky that you weren't one of the 100s of thousands of owners that had the plenum gasket problem. Or are you claiming that Chrysler issued a TSB for no reason at all and that every engine experiences exactly the same lifetime as yours did?

Why would a vehicle owner not follow the factory recommended maintenance intervals? Should the average owner be a psychic and know that the intervals in the owner and service manuals aren't necessarily correct, particularly when the plenum gasket leaks.

 

Here you go again spewing nonsense with no way to back it up. The valley is not the crankcase. Why are you still even here? Nobody wants your nonsense and misinformation.


He came in because you don't know what you're talking about. And trust me, engineers do make mistakes, I know this being an engineer and shrp will probably say the same thing (pretty sure he is also an engineer). And on that, you just contradicted yourself again. You just said the engineers know best, but then that the engineers designed the engine with a flaw. Which is it? Have you considered that you're the one with the mind of a 13 year old. Again, we don't want you here, just leave.

 

What are you talking about with "the valley is not the crankcase"? Where did that come from? And what is that supposed to mean?

I'm not the one lying and spewing misinformation that the plenum pan gasket leak doesn't contribute to sludge formation. That was all you. Own it, apologize, and move on with your life.

Umm, you may not know this, but more than one engineer is usually involved in the design of an engine. And engineers can and do make mistakes. The joining of aluminum and steel has a long, often problematic history going back decades in the auto industry. For example, GM's Northstar engines have a problem with the steel head bolts that join the aluminum cylinder heads and aluminum block together.

It wasn't me that posted infantile pictures and videos. That was all you. Again, own it, apologize, and move on with your life.

This is a public forum. As you're not the owner, it's not up to you whether I'm here or not. My input is valuable for those who are seriously looking for a solution to their vehicle's oil pressure problem instead of some cyberbully telling them they didn't do proper maintenance. An oil pressure problem, I might add, that Chrysler has spent millions of dollars repairing, and that individual owners have spent untold millions more repairing out of their own pockets.

 

Edgadz1995 why do I feel the need to post here? I don't know. Maybe "this is a public forum. As you're not the owner, it's not up to you whether I'm here or not. My input is valuable"

It wasn't a very good point. An intake manifold/plenum defect is that, a defect. It has no bearing on the maintenance interval. A maintenance interval DOES NOT take into account ANY leaks whatsoever, whether that be in the cooling system, engine oil, transmission, transfer case, or either differential. So what are you implying, that the Chrysler engineers should have known for a fact that the plenum gasket problem would be rampant in these engines and intentionally bring down maintenance intervals to make up for it? That's asinine. Makes no sense. They should have used aluminum from the beginning, NOONE is denying that. Yes it has cost people money. What vehicle has never cost anyone money out of their pocket for something that shouldn't have gone wrong, seriously. Please tell me of one vehicle like that.

Go ahead, keep calling him a troll. Or a 13 year old. Whatever you want to call him that makes you feel better about yourself. I'm sure he isn't bothered in the slightest by your name calling.

As for my engine specifically, no, I consider mine pretty lucky to have never had the problem that severe, I know it's a problem, a common one at that. I replaced mine so I didn't have to worry about it so much anymore.

Why would a vehicle owner not follow the recommended maintenance for the vehicle?

I never said they shouldn't. I, and others, are implying that maybe you followed the wrong one for yours, based on the use and how you drive it. You can't just blame everything on Chrysler because yours had problems and you chose the most relaxed maintenance schedule for yours. EVERY manufacturer is trying to push the limits on oil change intervals. Why? I don't know. Maybe to compete? Maybe because your average joe won't follow it anyway and doesn't realize they even need to change the oil? I really don't know why. Maybe they also assume most people will trade it in with 75,000 miles on it so they'll never experience such problems. Regardless, it's every manufacturer pushing for that, not just Chrysler. Still doesn't justify it, I know.

I'm sorry the people here don't agree with you, and that may hurt your feelings. But some of what you're saying in these posts is contradictory to how an engine actually operates.

Just so you don't think I'm also some Chrysler rep that's payed to "spread lies" about 20 year old engines that they could give a rats *ss about anymore, I'm not the biggest fan of Chrysler. I was raised to like Dodge. Working on them inside and out has changed my opinion on them a bit. Don't get me wrong, I like my Durango. Doesn't mean I care for Dodge as a whole, especially in recent times.

 

So does that mean comedians are infantile for making jokes? Get the stick out of your *** and lighten up. And what does the valley have to do with it? Well mr "you don't know anything about engines", the intake sits on top of the valley. And I'm pretty sure that most people would consider the bully the one who started the personal attacks (that was you in case you're not following along).


Yeah, I think it's funny that he still thinks he's right even with multiple people pointing out that he keeps contradicting himself, etc. Eventually he'll keep getting mad and rage quit for another 4 years. Just goes to show you, some people just can't be helped.

 

Exactly. If he wants to know who has the mind of a 13 year old, he needs to look inside his own head. I like how he calls you out for posting genuinely funny pictures and gifs, yet he's the one trying to make fun of you. But yes, unable to be helped. If I were to buy a brand new vehicle today and they told me to change oil every 20,000 miles I would laugh in their faces. And before he chimes in with his "expertise" again, I know 20,000 miles was never mentioned for maintenance intervals, it's just for an example.

 

Lets not argue, guys.

FWIW... I have the 4.7L. It takes special talent to sludge an engine running with today's quality full syn. I too run 7500 mi OCI and change filter at 15K (wire backed full synthetic media). No sludge, no oil burning, no issues. Daily driven with 287K, extremely reliable with lots of compression. And I'm running 0W-20 full syn...with zero worry. Now of course, that wasn't the oil recommended in the manual, but this is 15 years later and oil has changed. In defiance of the manual, Dodge dealers now put in 5W-20 for all 4.7L, regardless of age. Likewise, I now use ATF+4 for PS fluid, but that wasn't in the original manual.

 

I wonder if they changed something then. I'm pretty sure my 98 (with the 5.9, pre 4.7 years) was actually recommended and came from the factory with ATF+3? 4? Don't know what it was back in 98. I'm sure I'm wrong but I swear I read somewhere that it was ATF+3 and 4 now supersedes it.

Regardless, the 4.7 is gonna have a different pump, and mine is gearbox, so it's not too surprising that they would make a switch like that

 

They changed the viscosity for a lot of engines. Don't know if they actually changed much, or if it was just less friction for emissions.

The 3.8 V6 used to call for 10w30 in the late 90s. The one in my parent's 09 wrangler calls for 5w20 now.