Photos of particulate filter on 6.7L

[CUMMINZ]

Please click here :-laf

 

[Gary - K7GLD]

I saw those pics in the other thread on the new C&C trucks - sure glad to see Dodge get into the game at a more serious level - but I wonder, on the new trucks, what the addition of those traps cost the buyer, and what is their predicted life span?

 

[Matt400]

Interesting how they did the dummy 4x4 front axle. A low cost way to make use of current suspension design and components.

 

[Bill Stockard]

Interesting how they did the dummy 4x4 front axle. A low cost way to make use of current suspension design and components.

They have been doing this for a while. If you look at the front axle under 2nd generation 3500 4x2 cab and chassis trucks ('94-'02), you'll see the same arrangement.



Bill

 

[Matt400]

They have been doing this for a while. If you look at the front axle under 2nd generation 3500 4x2 cab and chassis trucks ('94-'02), you'll see the same arrangement.



Bill

Hrmm, the few I have seen around here must be converted pick-ups as they are independents. Do the 2nd & 3rd gens like this have the same ride height as 4x4's?

 

[BHaden]

It looks like the front part is the CAT with the DPF welded onto the back? If so that could be real expensive down the line since you would have to replace them both if one fails.

 

[Nate]

What would happen if you just cut all that b/s outta of the exhaust pipe?

 

[SnoKing]

What would happen if you just cut all that b/s outta of the exhaust pipe?

EPA would give you a ride to the grey bar hotel. SNOKING

 

[CUMMINZ]

Exhaust upgrade

One thing I did notice about the 6. 7L CC exhaust was that the pipe joint just behind the cat/filter would be an extremely easy place to remove all the exhaust behind that joint and straight pipe to 5" or modify to 5" with a good muffler. Just leave the cat/filter and you would still have a legal system.

 

[Nate]

No different than removing a cat on a gasser... . how many people get in trouble for that?

EPA would give you a ride to the grey bar hotel. SNOKING

 

[BHaden]

The computer monitors what goes on in the DPF. Without inputs from down below to keep the computer happy I think you would very quickly have a CEL and I suspect it would not run happily.

 

[CStraface]

The computer monitors what goes on in the DPF. Without inputs from down below to keep the computer happy I think you would very quickly have a CEL and I suspect it would not run happily.

Well isn't that what all the tuners are for? I mean 3rd gen computers don't like seeing boost numbers of 40+, so it throws overboost. Well we have ways of getting around that so why can't we sneak around the DPF as well? :-laf

 

[Coalsmoke]

Oh this is bad. I clicked that link and really wish I hadn't. Looking at those pictures and then looking at the industrial DPFs I saw at the truck show, we got shafted bad here. The presentations I attended by Cummins and Caterpillar on their respective DPF systems showed us that they are made to be easily opened, with T-bolts at each end of the can, you just pop the center section open and take the DPF in for cleaning, which will need to be done roughly every 150,000kms or 95,000miles. The cleaning only costs $450-550 dollars, depending on the model. Look at the system DC put on these trucks, it is completely sealed! That will be a $1500 bill for us roughly every 100,000miles. I'm attaching a photo if the Cummins and Caterpiller industrial DPFs so you guys can all see what I am talking about.

 

[JR2]

The DPF on the new trucks is self cleaning, when the sensors suggest it the ECM will overfuel the truck and cause the EGT's to rise. This burns the crap out of the DPF. I would bet that once these engines are in the hands of the aftermarket guys someone will come up with a way to bypass the DPF, after all its just a couple of pressure sensors.



I would bet in the end as long as the DPF sensors do not see any back pressure then it would never think the DPF was having problems. It may be as simple as removeing the DPF and installing the sensors in your new exhaust.

 

[Coalsmoke]

The DPF on the new trucks is self cleaning, when the sensors suggest it the ECM will overfuel the truck and cause the EGT's to rise. This burns the crap out of the DPF. I would bet that once these engines are in the hands of the aftermarket guys someone will come up with a way to bypass the DPF, after all its just a couple of pressure sensors.



I would bet in the end as long as the DPF sensors do not see any back pressure then it would never think the DPF was having problems. It may be as simple as removeing the DPF and installing the sensors in your new exhaust.

No, the DPF is not self cleaning. The engine is equipped with a burn-mode, but you must realize that is meant for burning the accumalted soot, and still leaves a small amount of ash residue. After a while this builds up to the point that the DPF will need to be cleaned.



The DPF sensors require a certain amount of pressure or else they will signal the computer to significantly derate the engine until the problem is corrected. Getting around teh DPF will require more than simply removing it

 

[hammersley]

Did you see the $$$$ of the transmission?????

That's a very big step up in $$$$$ - in fact this truck came with an engine BUT adding Mr C and the new transmission adds 36% to the cost of the rig..... it's always been $$$$ and they have keep the cost of the Diesel the same - BUT the transmission seems very steep... ... .

 

[Coalsmoke]

Its up there, but its not unreasonable considering the transmission you get for that $2200.

 

[CUMMINZ]

Self cleaning DPF

Self cleaning DPF





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[JBlock]

I like that 52 gallon tank,

 

[EB]

I can tell you about that burn mode. The first time it happened I thought I had a stuck injector. It will smoke with a blue white smoke, and do it very heavily. It really shook me up the first time it happened. It smoked for about 15-20 seconds then it quit. It has done it six times in the 9500+ miles I've run the truck. It did it again today on a back road and I stopped just to make sure it wasn't missing any, it wasn't and will not recommend sticking your hand down by the exhaust. It is very hot. A word of caution, if you were in tall grass it would probably set it on fire. I really don't care for all the smoke, I've had several truckers call me to tell me I must have a problem. It really doesn't look good.