Is it a proven engine?

[Cyclo]

What's y'alls take on this explanation

http://m.youtube.com/watch?v=QCX0M98BQ2g

 

[cerberusiam]

I want to see the lifters that are the problem, and his face when he finds them.

 

[Cyclo]

I'm speaking as one who doesn't understand diesels but that makes sense. I'll watch and see

 

[Simplysmn]

All I can say is I love my little Eco Diesel Jeep run's Like a Top .and if I have Problem's with it that is what a Warr. is For .

 

[leaky gasket]

He has a AEM performancs dry flow air filter on on his truck. I wounder if that has something to do with his blow by problem?

 

[DonFitzwater]

The guy in the vid is a giant tool.

 

[sag2]

Mine with 23k on it blows just like his and it doesn't use any oil. I think he is creating a product for a problem that does not exist.

 

[MMeier]

X 2 , and has way too much time on his hands !

 

[Cyclo]

I'm going to pick up a dodge. Just haven't decided between the eco diesel and the three quarter ton.

Thanks for the replies

 

[RVTRKN]

Go with Eco Diesel, if you don't need the higher GVWR.

 

[cerberusiam]

Mine with 23k on it blows just like his and it doesn't use any oil. I think he is creating a product for a problem that does not exist.

Curious, is he correct in describing how the oil vapor is routed? To the turbo and the air box?

Technically, he doesn't have a clue what he is talking about. Functionally, if he is actually getting an oil buildup in the CAC tubes that is bad ju-ju.

 

[mwilson]

My TDI always had oil in the CAC and related tubing. I think it was a fact of life because there was a shut down flap built into the intake in case it decided to try and obtain orbit......

I wonder if the VM has a similar positive shut down device and if so will the You Tube Rocket Scientist decide to outwit that as well???

Mike.

 

[Tinman]

The oil vapor from the CCV was a significant issue in the 2.8 VM CRD in the 05 and 06 Liberty. I would literally coat the entire intake with oil, CAC and all. Mix that with the egr and the intake would fill up with black peanut butter. It was a bad deal. Since this is another VM diesel, I wouldn't be surprised to see the same. If and when we get a Ram 1500 or GC, this will be moded as soon as if it gets home. In the Liberty world most would either vent the crank case to the atmosphere (known as the elephant hose mod = EHM) or use a Provent either vented back into the intake or atmosphere. The problem with the EHM is that is was smoke bad enough that people would walk by your idling Libby as say it was on fire. I finally got tired hearing my wife complain so I added a Provent. Problem solved and intake clean (until the turbo started leaking oil from lack of idling prior to shut down).

The "flapper" valve in the intake you mentioned (called the Flow Control Valve = FCV on the libby) isn't there to prevent a run away (although I suppose it could). It is an integral part of the EGR system to control intake air and allow egr gases in. Since it is there, the ecm will close it on shut down so the engine doesn't have to stop on a compressor stoke, smoothing out shut down. Nice, but not necessary and certain do designed to prevent a run away. A common problem on the libby (and one of the only problems we have had) was the oil smoke from the CCV in question would gum up the FCA and prevent it from opening back up after shut down, preventing re-start. This happened on ours after running it stock (with CCV and EGR) for only a few thousand miles. The oil separator on the 3.0 CCV may work better than the 2.8, so time will tell. But if I was driving one stock, I'd be checking my intake regularly.

 

[cerberusiam]

Wonder what modifying that system does to the warranty?

Another one of those untenable conditions that the fix creates another untenable condition.

 

[mwilson]

Yes, the TDI flapper was designed for smoother engine stops with the positive air shutoff effect as an added bonus. It will stop a runaway if enough engine oil get through from the CAC or blown turbo seals, etc.

I was thinking that VM applied that same line of thinking so a little oil in the intake would be acceptable. I certainly would not mess with one if the engine has it. I just figured that the junior engineer in the video was apt to start playing with other stuff in his quest to fix something that does not appear to be broken.....

Many times overseas design is different than ours and you really should not screw with it untl you understand it completely.

Hans und Franz at VW decided that some oil in the intake was acceptable on a TDI with a positive air shutoff backup and probably got the Iron Cross for their efforts in engineering. Or got their wings.........

Maybe VM looks at it the same way and Mario is being rewarded in a similar fashion.

Run the darn thing and leave it alone for now would be my approach until some more miles get on these engines. If it's not using oil and marking it's territory everywhere it stops leave it alone. Quit taking the filler cap off while it's running. Messy and stupid.

A pattern will emerge if there is an issue and then there will be a solution, sometimes legal and sometimes not.

 

[mwilson]

BTW, the oil in the TDI intake and CAC scared me until I researched it and found out that they all do it. People even remove the VW CAC's from time to time and drain them.
I stopped worrying about it after that. Cleaned the intake mess and had the EGR cycles turned way down.....still happily motoring today as far as I know.

 

[RangerGress]

The engine has a longer track record then the US specific engine management system. IMO all modern engine management systems are prone to failure because they are too complicated. Chasing CELs has aggravated the crap out of what fraction of American manhood?

So I figure that it'll be the engine management system that starts driving us crazy. The month after the warranty expires.

A software reflash took care of my CEL. >10k miles now. Lots of towing. Really love the truck.

 

[JR]

BTW, the oil in the TDI intake and CAC scared me until I researched it and found out that they all do it. People even remove the VW CAC's from time to time and drain them.
I stopped worrying about it after that. Cleaned the intake mess and had the EGR cycles turned way down.....still happily motoring today as far as I know.

Same here. I had to pull the lower CAC hose on the wifes TDI to change the altenator. I had it on a lift and was standing underneath when I popped the hose off and was more than a little surprised when it began dripping on my head right away. I turned the hose upside down and got what I would guess to be an ounce or two out of it. That was the first time I'd ever had it off so I have no idea how long it took to accumulate, but considering I have to add less than a quart in my 20k service intervals it has to take quite a while. The guy in the video says he had 2 quarts in his piping, and he think it's a design flaw of VM and not a warranty issue. That's pretty special right there.

 

[Tinman]

The idea of the CCV venting to the intake isn't new, unique to VM engines or necessarily a problem. However, my experience with this type of system is it is inherently flawed and a poorly engineered execution of this can cause a lot of problems. A little oil in the intake isn't necessarily a problem, but it isn't good either. Think about it, a CAC can't work as efficiently if the inside is coated with oil. Mix that with egr and you get a mess. There are pics on the libby forum of intakes that have half or more of the intake diameter reduced by this gunk. Will the engine run, yes. Is this acceptable to me, no way. It is acceptable to another operator, could be. Depends of that operators goals/desires. These emissions systems come from governments that have tunnel vision, and pay no mind to the consequence or cost of their regs. I want an efficient, reliable vehicle that will last a long time. That goal is mutually exclusive with a lot of these over complicated, failure prone devices. So I think discussion about how to defeat, change, improve them are pertain to the informed operator.

I was just on the Jeep GC ecodiesel forum and apparently, mods the ccv will set a code. I don't know if it is related to too much or too little pressure, but this will have to be dealt with.

 

[wiley75]

My opinion. The guys that are having "problems" with blow by are the "Super Truckers". You know what a Super Trucker is don't you? Hint...they are the guys that leave their Ecodiesel idling in the parking lot for an hour or two while they eat in a restaurant, idle while fueling up with diesel (where the big rigs fill up at the fuel island of course), idle for 10 hours straight 5 days a week at a jobsite, etc etc. Then they get on a internet forum and complain about DPF plugging issues, blow-by, and whatever else. All of a sudden it becomes written in stone gospel that Ecodiesels have blow-by problems. Hmm.