EGR Preventative Maintenance

[GARRIGA]

I’m trying real hard to find peace with soot. Diesel still a mystery in many ways. I’m thinking that removal of the EGR periodically for cleaning will help prolong the life of the engine. Deletion is not an option and just letting it accumulate seems senseless.

Video brings up good points, although, it appears that he’s decided on the path of least resistance and seems most logical but not pragmatic for me.

Thoughts?

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[GARRIGA]

More soot goodness

 

[GARRIGA]

Catch cans? But why wouldn’t the manufacturer already provide them?

 

[JLURD]

Find real-world reports of post-DPF EGR soot buildup before looking for solutions. Different designs are going to require different or no solutions.

 

[GARRIGA]

First video is not that real world example of soot build up?

 

[JLURD]

First video is not that real world example of soot build up?

Correct me if I’m wrong, but is that not an example of the old school way of collecting diesel exhaust before the DPF? The DPF was used as the source of back-pressure to run the EGRs until they realized what a soot-disaster that created...the gen3 3.0 runs a post-DPF valve to create the same pressure and recirculate much cleaner exhaust.

 

[2020 Diesel JL]

Correct me if I’m wrong, but is that not an example of the old school way of collecting diesel exhaust before the DPF? The DPF was used as the source of back-pressure to run the EGRs until they realized what a soot-disaster that created...the gen3 3.0 runs a post-DPF valve to create the same pressure and recirculate much cleaner exhaust.

I have never heard a DPF was used as the source of back-pressure but is may be true. What we need is someone to get some miles on theirs and pull the tube and report what they find. Post DPF should have little to no buildup. During a regen you would think it would shut off the EGR due to high temps other than that temps should be good enough to work the EGR system, The EGR reduces the amount of NOx by lowing the combustion chamber temps so the long tube from post DPF may work very well.

 

[WXman]

I admit, it's Monday morning and my brain is half off. But, post-DPF is exhaust pipe territory. Right? Of course that's going to be clean. Nobody ever cares what that looks like. Our concern is what's happening inside the engine. EGR destroys pathways and soots up the engine oil rapidly. Will this Gen 3 engine be better? Not by what the guys on the Ram forums are saying. One guy pulled his EGR tube at 900 miles and it looked like a coal mine.

 

[GARRIGA]

Correct me if I’m wrong, but is that not an example of the old school way of collecting diesel exhaust before the DPF? The DPF was used as the source of back-pressure to run the EGRs until they realized what a soot-disaster that created...the gen3 3.0 runs a post-DPF valve to create the same pressure and recirculate much cleaner exhaust.

My understanding. Two EGRs. The improved low pressure post-DPF but the original still there to clog. Unless I misunderstood the rep with the heavy accent.

 

[GARRIGA]

I admit, it's Monday morning and my brain is half off. But, post-DPF is exhaust pipe territory. Right? Of course that's going to be clean. Nobody ever cares what that looks like. Our concern is what's happening inside the engine. EGR destroys pathways and soots up the engine oil rapidly. Will this Gen 3 engine be better? Not by what the guys on the Ram forums are saying. One guy pulled his EGR tube at 900 miles and it looked like a coal mine.

That’s my concern. Just trying to fully understand it and how to best remedy it. That’s all.

 

[JLURD]

I admit, it's Monday morning and my brain is half off. But, post-DPF is exhaust pipe territory. Right? Of course that's going to be clean. Nobody ever cares what that looks like. Our concern is what's happening inside the engine. EGR destroys pathways and soots up the engine oil rapidly. Will this Gen 3 engine be better? Not by what the guys on the Ram forums are saying. One guy pulled his EGR tube at 900 miles and it looked like a coal mine.

Got a link?

 

[2020 Diesel JL]

I admit, it's Monday morning and my brain is half off. But, post-DPF is exhaust pipe territory. Right? Of course that's going to be clean. Nobody ever cares what that looks like. Our concern is what's happening inside the engine. EGR destroys pathways and soots up the engine oil rapidly. Will this Gen 3 engine be better? Not by what the guys on the Ram forums are saying. One guy pulled his EGR tube at 900 miles and it looked like a coal mine.

Was that on a Gen3? Some of the 2020 Rams still have the Gen2. The DPF takes out the soot. that is its job. If it was doing its job how could so much soot be in the EGR pipe if its coming post DPF? This is not a argument it's a discussion to figure it out. I have taken a lot of DPF systems apart and have never found a system that was not having issues with any soot post DPF. The only reason that soot get in the EGR tube is from pre DPF soot.

 

[2020 Diesel JL]

Got a link?

I would like to see the link also.

 

[WXman]

Got a link?

I will see if I can find it again. I was reading it about two weeks ago on one of the Ram forums. I'll look for it.

Was that on a Gen3? Some of the 2020 Rams still have the Gen2. The DPF takes out the soot. that is its job. If it was doing its job how could so much soot be in the EGR pipe if its coming post DPF? This is not a argument it's a discussion to figure it out. I have taken a lot of DPF systems apart and have never found a system that was not having issues with any soot post DPF. The only reason that soot get in the EGR tube is from pre DPF soot.

I've never seen a 2020 with the Gen 2 engine. I didn't think that existed. Maybe on a '19 which is also the DT body, but not a '20. Anyhow, what I've read is that the EGR system is a dual system now. It does have the low pressure side post-DPF but it still has the high pressure side like in the past too. So it's still getting sooted up inside.

I was poking around under mine tonight and there are a zillion sensors/nozzles/solenoids along the exhaust system from the turbo all the way to the rear axle. It's a nightmare what they've got going on under there. Out of warranty, this would get scary. There's even a spring loaded valve of some sort all the way back toward the rear axle. I can't even figure out what that is. Anyhow...this is sort of off topic.

 

[BuffaloBill]

There are some egr discussions in this gen3 1500 thread. Some experimenting going on also.
https://www.ram1500diesel.com/threads/will-there-be-tunes-for-3rd-gen-eco.67403/

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