too bad ED doesn't get lifetime that's insane. did they replace the part, or fix the problem?

 

The problem is the EGR system. What bright spark thought that recycling engine exhaust gases Laden with soot back through the intake manifold would be a good idea? I understand why, reduce NOX etc, but this a potential problem for all modern light duty diesels, and sadly, one of the reasons while I’ll likely not buy another. The EGR system on a light duty diesel is essentially flawed. EGR delete is the only way to stop this.

 

Did you notice changes in performance and/or gas mileage for "now" versus when it was new? Seems like it would have been way down on performance with all that crap in there. Or perhaps it changed slowly so you never really noticed it? With the new clean part is may seem like a whole new driving experience all of a sudden.

 

Precisely demonstrates why GDE tune is necessary, doesnt it?? The tune solves specifically this, and MANY other emissions related issues.

 

But you ARE breaking the law and polluting the planet

 

Is that so? The GDE tune produces more NoX, which is easily broken down in the environment, while producing less Co2 than the stock tune, which isn't so easily broken down. If you want to trust the Government to tell you which is best, that's on you.


Your intake looks normal for the mileage on a stock tune.

 

That's just crazy. I just got my GC back yesterday for the same thing. I had to wait almost 2 months for the part to come in. I never got to see it but the mechanic said it was pretty gunked up and that I should use an additive every time I fill up. A GDE tune is in my future. I had a 5yr/100k extended warranty and this happened at 105k miles. The CEL light came on as the SR at my local dealer handed me back my keys after I had them do an oil, coolant, brake and tranny service. They have always done the service on the truck so I was fortunate that Jeep picked up the tab on the repair with me paying my $100 ded. Apparently it's an $1800 repair. All is good now.:thumbsup:

 

So correct me if I am wrong.


This sooting up is a known issue with the diesel Jeeps.


The issue could cause the vehicle to operate and perform contrary to original manufacturers' design and specifications?


Does this then mean that the diesel operates outside of its pollution design guidelines?


WOW increased fuel usage, increased pollutants, maybe decreased performance, and its a known issue!

 

The 'pollution control guidelines' you mention are the reason the engines get gummed up with soot. Thank the EPA.


The EPA doesn't care that your engine is a soot-filled brick at 100k.

 

Ans that is one of many reasons why you look to get rid of it at 100 K...
It could go 150K or it could go 100,750 before you have an expensive fix. Not waiting around to find out....

 

Or, tune it for $750 and enjoy an amazing vehicle long after 100k. Your choice.

 

Ans that is one of many reasons why you look to get rid of it at 100 K...
It could go 150K or it could go 100,750 before you have an expensive fix. Not waiting around to find out....

The only way you can get lucky here is if you have problems at say 85-95K miles and a lot of things get replaced by MaxCare. If by chance that would happen then I MIGHT think about keeping it longer.....

 

That's why I don't get the extended warranty. Isn't the extended warranty about the same price as this repair? Why spend the money now when you may not even have to spend it in the future... besides, an $1800 repair every 100,000 miles compared to $150 oil change every 10,000 miles seems not too shocking.


I prefer to role the dice and so far it's worked well for us having owned 6 new cars over the past 30 years.

 

Well in my opinion you haven’t owned THIS car before, and or this car long enough......
If you are wanting 100 K miles out of it or owning it for the duration, A Maxcare policy is probably the cheapest money ever spent. I’ve got my money out of that long ago and I’m two years away from 100 K miles. The most expensive parts of this vehicle are after it ages past about 70 K miles and a lot of problems described on various threads here start to show up. If you have zero coverage at that point it, can be a $500 fix or it can be a $4500 fix ....if you need a DPF/SCR, Sensors, or any of the other expensive items.... not to mention if an occasional quirky thing goes bad like a infotainment head unit or an air suspension pump it’s covered for 100 bucks...but that’s entirely up to you......

 

Has anybody tried seafoaming their intake periodically to reduce this build up?

 

My gut feel is that the Sea Foam spray would act like a fuel. In a compression ignition engine with "uncontrolled" fuel I think things like extreme knocking/detonation could occur-but could be wrong. Compare that to the normal injection cycle where fuel is precisely added at the appropriate portion of the power cycle. I went to the Sea Foam site and asked them that question. Will let you know if they reply.

edit to add-might be wrong. These aren't Sea Foam, but they are a spray for cleaning the intake of diesels.

JLM

https://www.wynns.eu/product/diesel-egr-extreme-cleaner/

 

Have the GDE tune about 6 months ago. FCA has replaced the SCR, DFP sensor, EGR cooler and valve which excluding the SCR is well over 3400 bucks so far. New engine in the Jeep and I opted for Max Care 8/ 120. Paid for itself so far 170%.
What is the point of the DEF which its job is to take NO and convert it to water and N2 so why is the EGR required if the DEF scrubs the NO?
Must be an EPA mandate regardless of the vehicle slap an EGR on it.
I have little concern about the NO rising given the DEF is working just fine...

 

I did some research and it looks like it is not a good idea to put seafoam into a diesel intake.

 

Problem with foam cleaning the intake, soot is abrasive, more so when it comes off in chunks. I wouldn't want that going through my cylinders.

 

Why wouldn't the intake manifold and swirl valves clean themselves out over time after a EGR block off tune (like Off Road - GDE) ? Bearing in mind you also divert CCV gases via Catch Can or other method...

 

I think it would clean itself a little over time, but without fuel or solvent it will be minimal.

 

Since the EGR is the problem, why not just place a blocker plate over it. Do you have to have the tune? With the EGR blocked does it set codes or impact the engine. I really don't know how the system works.

 

Yes, you get code immediately.

There are other options... to fix it completely you need a good catch can as well. Oil mist mixed with the EGR gas doesn’t help things .... to put it politely.

 

Yes, you would get codes by blocking EGR without a tune.

 

Just wondering, if a dirty intake could be media blasted (walnut), to clean off the carbon, instead of replacing the manifold?

 

Sure, if you remove it. The carbon deposits will return unless you fix the problem.

 

What BH said. Also the factory intake is plastic and I would tend to chemically clean the factory intake rather than blasting it. Just me but, I spent the money (a lot) on the Banks intake.

 

For the vast majority, this is what modern diesel intakes look like. Lovely carbon filled exhaust mixes with oily CCV vapors and hardens into this petrified cake batter that starves your engine. As stated a million times, a GDE tune completely eliminates this. Also, our engines have oil separators in the CCV, but I added a catch can and pull about a cup of oil from it every oil change. That 1c of oil was headed towards my turbo, intercooler, intake, etc... I prefer nothing but cold compressed air be entered into my cylinders thank you!
There may be more, but I have heard Land Rovers diesel picks up the EGR after the particulate filter cleans out the carbon before it pumps the gas back in the motor, genius design that solves the carbon gunk issue.

 

Far from, Some of us in emission controlled areas are stuck. GDE won't even sell to us. So I guess my next trip to the dealer I will at least have the MAP sensor and EGR diffuser tube cleaned. FCA and the dealers need to have a preventive maintenance plan for soot build up in the ecodiesel.

 

Bosch does most of the emissions and fuel system.

 

Update on this thread. My GC has 116,000 miles. After the AEM I started to get CEL issues. Took it to Lithia Jeep in Sante Fe and they stated going through the checklist, replacing part after part but each time the CEL came back. They finally changed the intake manifold and solved he problem. It was all covered under the AEM extended warranty. I guess I'm good for another 116,000 miles. I hope.