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Soot in Tailpipe

6.7 intake

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Kind of cool if you think about it to see a new Dodge pulling a big heavy trailer and the tailpipe is a shiny chrome inside and out. Same for the new big rigs. Clean as a whistle. Engineering brilliance courtesy of USA knowledge. You get what you pay for, eh?
 
We had emissions testing here in Northern Kentucky for several years but much to my surprise and delight they did away with it a few years ago. I guess the air was deemed clean enough. Most of the polluting vehicles have been taken out of service due to attrition.
 
As the population of old vehicles is scrapped, there will be no need for emissions testing any more. It will be just another "feel good" form of hidden taxation.



I have a 1985 Jeep CJ7 that doesn't need testing anymore. It has fallen off the end of the timeline for testing. They probably think these are no longer any of these on the road:)
 
Kind of cool if you think about it to see a new Dodge pulling a big heavy trailer and the tailpipe is a shiny chrome inside and out. Same for the new big rigs. Clean as a whistle. Engineering brilliance courtesy of USA knowledge. You get what you pay for, eh?







Yeah, really cool... .



If it didn't destroy your engine in doing so.
 
Yeah, really cool... .

If it didn't destroy your engine in doing so.

. . . as well as reduce power potential by 20%, burn more fuel, increase operating costs, reduce reliability, and shorten service life.

Other than those few minor issues heavy handed creation of emissions standards by empty suits is great.
 
I have a 1985 Jeep CJ7 that doesn't need testing anymore. It has fallen off the end of the timeline for testing. They probably think these are no longer any of these on the road:)



Unfortunately here in Cali vehicles don't drop out of the smog program as they age. They must be '73's or older to be exempt.

The carburated Jeeps are on the high emmiter/common failure list so they must go to a test only station every go 'round. I converted mine to fuel injection and it runs extremely clean-still have to go to the test only :{
 
Unfortunately here in Cali vehicles don't drop out of the smog program as they age. They must be '73's or older to be exempt.

The carburated Jeeps are on the high emmiter/common failure list so they must go to a test only station every go 'round. I converted mine to fuel injection and it runs extremely clean-still have to go to the test only :{



Agreed. Mine is fuel injected also so it is running alot cleaner than stock. :-laf
 
. . . as well as reduce power potential by 20%, burn more fuel, increase operating costs, reduce reliability, and shorten service life.



Other than those few minor issues heavy handed creation of emissions standards by empty suits is great.



You mean to tell me those clever Cummins engineers did not think of any of that before they released this engine. They didn't upgrade the programming to abate the effects of the EGR on the turbo, etc? You mean to tell me my 6. 7 has 20% less power potential regardless of the attachments? Hah!



I like clean air for everyone instead of black soot for me so I can have a few more MPGs. BTW even though my exhaust system is much more simple, the soot still does not come out because the engine is designed to run cleaner apparently. Will have to post some pics soon to back this up.



Ken
 
Yeah, really cool... .



If it didn't destroy your engine in doing so.



Please back up your ridiculous assertion. How many 6. 7s have been destroyed through normal operations? Last I saw there were a few members with over 300K on their 6. 7s with no ill effects.



Ken
 
Made a trade, different truck

Agreed! You may even want to get a quick EGR/Turbo cleaning prior to deletes so your stuff is pristine if you ever need to reinstall.



Great idea, thanks to all for the extremely good information. The truck I originally wrote about did not have limited slip, so Monday on my way through Vernon Texas I stopped where my son bought his new truck



Mine is a 06 5. 9 auto 3. 73 2-wheel drive dually Lonestar with 68,000 miles



Theirs is a 08 6. 7 6-speed manual 3. 73 2-wheel drive dually SLT with 31,000 miles



I lose 1) power seat 2) satellite radio 3) woodgrain 4) sliding rear window 5) auto transmission (if that's a loss with a 48re)



I gain 1) a exhaust brake 2) 2 model years 3) 37,000



trading for $6,000 cash plus TT&L, I think that is a heck of a trade



I'm leaving my brake controller and 5th wheel type gosseneck hitch, the new truck has the BW turnover ball and a prodigy



they will switch tires so I keep my new nitto crossteks with about 2,000 miles on them



I really wanted a exhaust brake but didn't want to spend the money necessary to beef of the 48re and buy the brake, I'm trading for slightly more than that would cost and gaining 2 years and 37,000 miles, I believe these new trucks are wired for power seats so I'll buy the base or leather from a salvage yard, I never opened the rear slider on my 06' (it wasn't power), I will love the 6-speed except when passing through Dallas at rush hour



I pick it up Saturday morning and I'm really excited, they are taking a couple of very small dings out, I bought my 06' from a 88 yr old with 5,600 miles and knew it had been wrecked but it did not show on car fax, the body shop that did the work did a horrible job lining the fender/hood/door gaps, that always bugged me



the fellow that owned this truck was in his late 50's like me, his wife was going to be driving the truck more so he traded for a 07 with leather and an automatic



they 1st offered to trade for $7k, I got them to $6k and they fix the dings and I keep my tires, they said they'd trade for $6, not fix the dings and not trade tires, I drove away, they called the first time in 20 minutes, then again at 35 minutes, when they called at 50 minutes I finally nswered and they said they wanted my truck and would trade the way I wanted



everyone else was wanting $10-$12 for a like trade, Vernon sells a ton of trucks, you can see their new ones on ebay



I always wanted to trade for $2,500 a model year and $0. 15 per mile, using that rationale and deducting the power seat and auto transmission I still got a really good truck, but my 06 was very well cared for



my son bought a 11' megacab 4x4 slt with the 800 lb torque from Vernon for $44,640 cash no trade, list was about $54k, bought it the same day he sold his modded 09' with 26k miles for $45,00 cash, Vernon has a good selection of new trucks and really like to trade, I just didn't want a new one



I'll keep you posted on the delete situation, this truck doesn't have very many miles so I want to see how I get along, our megacab just turned 100k miles so the delete is coming soon



thanks again for all of the input
 
Please back up your ridiculous assertion. How many 6. 7s have been destroyed through normal operations? Last I saw there were a few members with over 300K on their 6. 7s with no ill effects.



Ken





You're injecting soot into your engine. That same soot you don't want going out the tailpipe... it's an oily gritty mess. Go throw a bag of fine sand in your intake and see what happens.



Cummins/Dodge is quick to deny warranty claims caused by "dusted" aftermarket intakes, yet the soot crystals are just fine...



Let's talk about all of the folks who were getting upwards of 20% fuel dilution in their motor oil because of the DPF regen process.



Cummins limits acceptable fuel dilution to about 7%. Anything more than that washes cylinder walls, bearings, and keeps oil from lubricating things that must have a film of oil on them.





Now let's talk about fuel- ULSD was required with these new trucks because the sulfur content would clog the particulate filters. The process used to remove the sulfur also removes key contents that used to lubricate the fueling system - injection pump, injectors, etc...



How about oils... same thing goes for the motor oil. CJ-4+ oil was an excellent lubricant. It did an outstanding job of protecting the engine from wear. But the ingredients that did such a great job of protecting the engine also clog up particulate filters, hence the CI-4 oils.







Sure, many will get great life out of their trucks. There's no denying it. GM added EGR to the Duramax and subsequently subtracted 100k miles from the average life before overhaul. That's pretty damning if you ask me.





There is a reason that over-the-road truckers are willing to spend new-truck money on trucks with old rebuilt engines.
 
You're injecting soot into your engine. That same soot you don't want going out the tailpipe... it's an oily gritty mess. Go throw a bag of fine sand in your intake and see what happens.

Cummins/Dodge is quick to deny warranty claims caused by "dusted" aftermarket intakes, yet the soot crystals are just fine...

Let's talk about all of the folks who were getting upwards of 20% fuel dilution in their motor oil because of the DPF regen process.

Cummins limits acceptable fuel dilution to about 7%. Anything more than that washes cylinder walls, bearings, and keeps oil from lubricating things that must have a film of oil on them.


Now let's talk about fuel- ULSD was required with these new trucks because the sulfur content would clog the particulate filters. The process used to remove the sulfur also removes key contents that used to lubricate the fueling system - injection pump, injectors, etc...

How about oils... same thing goes for the motor oil. CJ-4+ oil was an excellent lubricant. It did an outstanding job of protecting the engine from wear. But the ingredients that did such a great job of protecting the engine also clog up particulate filters, hence the CI-4 oils.



Sure, many will get great life out of their trucks. There's no denying it. GM added EGR to the Duramax and subsequently subtracted 100k miles from the average life before overhaul. That's pretty damning if you ask me.


There is a reason that over-the-road truckers are willing to spend new-truck money on trucks with old rebuilt engines.

I think you are grossly exaggerating and misinterpreting many of your asssertions.

I trust Cummins, Inc. a lot more than website engineers with "better ideas and understanding. "

My EGR was clean as a whistle at about 70 to 75k miles. Some of the fuel dilution reported by members is probably caused by incomplete crankcase oil drain when changing oil and exaggerated by short trip grocery getting duty for the truck.

I don't remember noticing a change in the service life to overhaul claimed by Cummins for the ISB6. 7 engine compared to the ISB5. 9.

Are you another 5. 9 owner criticising the 6. 7 without owning one?
 
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BoB4x4,

I do not think IL. will since they do not even test gas vehicles for emission compliance yet in the entire state. IL. only test for emission compliance in the Chicago Metro Area and the East St Louis metro area. The rest of the state is not check for emission compliance for gas vehicles. I know this for a fact, one of my sons has an 01 Chevy pick-up and a 02 Jeep that have never been tested. He lives 5 miles away from the Chicago Metro testing area, in a different county.

Jim W.



Here in ID for years we only had 1 county that ran emissions tests, gas rigs only. As of last year its 2 counties and its gas/diesel in both of those counties. The rest of the state has nothing, so it is possible to just get diesel emissions here and there.
 
My 2 year emissions inspection is coming up in January. Via CumminsForum.com, I picked up another NOX & DPF canister. I've been hole-sawing through the filter material and intend to reinstall as decoys (for the visual inspection).
 
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