Anyone check for soot in the intake ???

[Ericshere03]

Anyone popped open their intakes to see how much this 3rd gen ecodiesel loads the intake with soot? I’d like to believe the motor uses a majority of post DPF intake for the egr. But who knows.

Secondly, what is the strategy for cleaning up the intake? If EGR is disabled, will the intake eventually clean itself? Or disassembly and cleaning required ??? Wonder if methanol/water injection would clean it up for us.

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[Glad_he_ate]

I have not looked... I looked in my 2.8 duramax and it caused me to buy a full delete and tune.. so best not to look as it can get expensive fast lmao ?

 

[rharr]

maybe this
https://www.amazon.com/AUTOOL-Automotive-Valvetronic-Deposits-Cleaning/dp/B07HSVKHZS

 

[Chance575]

I used a harbor freight sandblasted and a bmw wand tool to blast the valves on our GTI. It worked great but I’ll have walnut shells in my garage forever, and that’s with a shop van hook up to a custom machined tool for it.

no need for that over price shop vac above

 

[Chance575]

Before , after, the tools and my arm after it got blasted when the cheap sandblasted clogged up and back feed out the air inlet after disconnecting the sloppy air hose

 

[Ericshere03]

I have not looked... I looked in my 2.8 duramax and it caused me to buy a full delete and tune.. so best not to look as it can get expensive fast lmao ?

RIGHT! But we have the low pressure EGR in addition to the more traditional high pressure EGR. When using low pressure we should have soot free exhaust being injected into the intake. I was wondering how clean out I takes look, compared to the 2nd gen ecodiesel or something like the 2.8 Duramax …

 

[Ericshere03]

Before , after, the tools and my arm after it got blasted when the cheap sandblasted clogged up and back feed out the air inlet after disconnecting the sloppy air hose

You did that while the motor was assembled and in the car??? Not sure I’d perform that process for some soot cleanup… Reminds me of the old days of YouTube where someone suggested pouring sand in the intake of a running car to clean the intake (or was it to port/polish???) … anyways that didn’t work well, haha

 

[Chance575]

Yeah in the car with the intake off, turn over motor till both valves were closed. Cleaned that port with the other blocked off and then moved to the next. This is commonly done and the wand tool I used is a factory BMW tool. Their tech do this service all the time as well as many others.

 

[Ericshere03]

Yeah in the car with the intake off, turn over motor till both valves were closed. Cleaned that port with the other blocked off and then moved to the next. This is commonly done and the wand tool I used is a factory BMW tool. Their tech do this service all the time as well as many others.

That’s insane! I had a new 2012 Golf TDI, and back then they de-carboned the intake using a propane torch … but good job!

Maybe when. I hit 10k miles I’ll pop open the egr tube and examine

 

[Chance575]

That was at 80k on the gti……worst part is a month later sold the car to wife’s sister.

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