𝐃𝐈𝐄𝐒𝐄𝐋 𝐄𝐗𝐇𝐀𝐔𝐒𝐓 𝐀𝐅𝐓𝐄𝐑𝐓𝐑𝐄𝐀𝐓𝐌𝐄𝐍𝐓 (𝐄𝐌𝐈𝐒𝐒𝐈𝐎𝐍𝐒 𝐑𝐄𝐃𝐔𝐂𝐓𝐈𝐎𝐍) 𝐇𝐎𝐖 𝐈𝐓 𝐖𝐎𝐑𝐊𝐒! 

For more info on emissions check out my book on Amazon! www.amazon.com/dp/B0CVSMDF1B

Very good video and the sound is clear

Thank you for this!! I'm a Shop Foreman at a Dept. of Transportation shop and this video has really helped me understand how to diagnose these systems better. We don't get any kind of training for shit like this so it's much appreciated my good man!!

I've watched quite a few videos like this but yours has explained it extremely well and easy to understand. Great video!

I not too long switched over from auto mechanic to diesel mechanic thanks for the info made things a lot clearer 😊

Very clear explanations, thank you it helped a lot!

Awesome job!

Thank a lot, simple yet detailed explanation

Very well done. Thanks for making this video.

Great expanation. I learned a lot. Thanks.

Excellent explanation,thank you!

Thx for the information interesting I have a 08 f450 6.4 diesel I'm having issues with the exhaust pipe leak and the floor mat is getting melted

Thanks Charlie that was very informative

Great video going to show this video to the new guys at work

Amazing video brother

would be really cool if you could do a video running through each of the sensors and what they do and also common troubleshooting for each sensor.

Appreciate the video, I'm looking for any information on Detroit DOC face plate cleaning, with 1 box removed. We have had success with reaching into the down pipe and lightly brushing the plate face then shop vacuuming to get the soot out. I understand the 5-6 hour DOC regen, just looking for anything different? Thanks

Awesome video, thank you for it. You mentioned some modern engines don't come with an EGR because their SCR is so good. Can you mention which engines are those (of the regularly used in OTR)?

great video

Hey buddy, great job explaining the Cummings emissions system. You have just addressed my current problem. I have a 2014 ISX15. I am currently having an issue with the 7th injector possible overdosing. I have a Doc and Dpf temp that has read 3200 degrees and would cause the truck to signal a shut engine down. I managed to clear the code and regenerated in a controlled environment so that I could monitor the Temps and also heat gun the exhaust system when this occurred again. When it happened again, the light proceeded to activate, and the Doc showed 3200 deg, then the DPF followed suit. I checked with a temp gun while this was going on, but the temp gun showed 1032 degrees at its highest. The SCR stayed at around mid 800 inlet and high 700 at the outlet. Can the DOC handle this much temp, or could that be a fault/default reading once the Temps reach its max threshold? Should I replace the DOC if it has reached a higher than normal temp as well as the DPF filter? When I had the Dpf off to get clean, it failed. They cleaned, and it passed, but when they tried the pin test, it only went half way threw. Your thoughts?

Born and raised in trucking, now 39 years behind the wheel, I have diesel in my blood and my favorite cologne is Diesel Chanel #2. Quite honestly I can't wait until we quit using diesel fuel for our trucks and instead use Hydrogen which obviously still requires SCR treatment but it seems to me that we'd have cleaner engines internally without all that carbon buildup, and because Hydrogen is not petroleum oil, the engines wouldn't produce soot and fine particles and would not require after-treatment filtration, only SCR catalyst for NOX. My latest spotter truck does it's parked regen 2-3 times a night however I've noticed it's not using the DEF fluid, the gauge has not moved all week.Sounds like another expensive repair is about to ensue. Of all the after-treatment systems currently in use, I like the one Mack Trucks uses the most.

Great video. Any pointers or videos for ase l2 would be great. Going this week, just trying to make sure I'm not missing anything.

Hey Charley! Got an ISX 15 2015 that keeps sticking in warm-up mode, that’s where the six injectors are spraying extra fuel and no. 7 is NOT dosing. Long story short…..Spent$$$$$$$$, been everywhere! Likes to do it most when fuel mileage is bordering on fantastic like an empty flatbed deadhead. Ever seen this before? Apparently nobody else has! Thanks!

I wonder what the maintenance costs are compared to gas engine including down time

This this a school or where are you guys located at? Nice engine stands and exhaust system so you can understand things

Do you have any videos on spark assisted dpf

Is the HPCR engine zero emissions

Diesel exhaust contains 3 to 17% oxygen, it is not inert like gasoline engines. We need much larger percentage of exhaust gas to reduce combustion temperature.

Delete, delete , delete , with that said, great explanation and thank you

How to get best fuel economy from your cummins engine

Did anyone other then me here him say you have you have the exhaust cleaned after so money cycle. So where will that soot go?? Back in the atmosphere. This hole system is just a money grab. It cost to have the system clean the system is unreliable, expensive to repair burns more fuel brings down fuel mileage. Its sad. We have the tech to really solve the problem, but they will not give it to us they cannot make any money off of it. This system is not efficient. Good job explaining why it doesn't work well at all.

I want people to understand that we exchange soot for higher CO2 emissions. Are decreasing soot levels worth higher fuel usage and CO2 emissions? We are increasing our ammonia/fixed nitrogen content (lots of governments want to reduce the nitrogen fertilizer) of exhaust in exchange for lower NOX. My opinion is urea injection/ammonia is a net benifit. I don't feel the same way about the DPF with increased CO2 in exchange for decreased soot. There are no perfect solutions, only tradeoffs.

So tell me why an EGR diesel truck engine lasts 300k miles and an EGR deleted truck engine lasts over 1 million(same 6.7 engine)? Introducing exhaust back into the motor is NOT a better design. Screw the EPA and Tree Huggers!

your just going to walk around a garage full of mammoth engines and not show the rest??!?!?!?!?!!

This is horrible. This makes owning a truck expensive , and makes them very unreliable. And if you count the manufacturing of all these components and DEF fluid and extra diesel burnt and the shipping of these products all over the country. You're creating more problems than you are doing any good. horrable

I'm sorry , I'm a mechanic of 40 yrs . I mean a real one . Egr and most other available treatments work when new ,then they kill engine. hydrogen 10% mix cleans bur n and engine