Oki haven't owned anything but a f350 since 1989 until now I bought a 2011 3500 ram because of the new 6.7 ford is making and the track record of the 6.0 and 6.4 motors.
I will say the new ram is really nice inside and out, has the proven cummins motor that is awesome, exhaust brake works great sounds great, truck rides good.
Now the problems. The drivers compartment is sized for a kid my shoulders hit the center were the seat belt is my head hits the roof, the running boards are under the rocker and sized for litty feet along with the rear bumper.

Big question is how are the new 6.7 motors?
Did they change anything on the suspension?
Is there a delete kit for the def?
How is the engine to work on? Like changing the alternator, thermostat etc. If needed in an emergence.

Truck I was coming from was a 08

Thanks

 

The immediate issue:

If your plan is to delete DEF / DOC / DPF, this is the wrong truck for you.

Flatly put --- it can be done, but there is no way to do it without Ford knowing, and you will not likely pass a smog check once they start looking.

Furthermore, the DEF system is rigged up so that if you don't have it running, it will shut down the motor eventually.

Ditto for your current truck, and anything else you might be thinking of.


Based on the posts from people I know on this forum (I don't own a 6.7), the word out is generally good, but there are teething problems --- so better to wait for the next model year.

Suspension? Ask people in here.

Engine access is suppose to be much better than the 6.0 / 6.4 but again, not many people have done a lot of work.. so lets see.

 

I thought the making oil problem was from the def so by deleting it that problem is gone.
As for the smog test I'm not worried about that.
I hear you on waiting a year but I am going to take a bath on this truck and don't want to be uncomfortable for a year. I am hoping the 6.7 is holding it's Own

 

I am pretty sure that the computer will shut you down if you deleted.

We are not talking of the 2008 Ford 6.4 or the 2007 6.0 that allow you some wiggle.

The software is, kindly put, intolerant.

I had a discussion with the 6.7 program engineer that came on here on that issue (you can probably still find my posts) and it came down to what CARB and others will accept.

I put forward the case for "soft failure" and they said they can't get that past the government.

So there is no way you can easily do it --- even if you don't care about the legal penalties.

I suppose a software guru that have access to at least parts of the Ford source code can easily do it.

Or a "black box" type approach like tuners do... but... that is in the future.


IMHO, the best answer is, "don't even think about it".


Did you tweak your Dodge?

 

Making oil is a DPF Regeneration issue. Has nothing to do with DEF.

Making oil happens when the fuel injectors push raw fuel during the exhaust stroke through the headers and into the ceramic DPF filter where the unburnt fuel ignites and burns the soot that has been trapped in the filter.

The 6.4 motor uses all 8 cylinders to push the fuel down the pipe during a regen. It also does many more "active" regens than the 6.7.

The 6.7 only uses half the motor (4 cylinders) to push the fuel to the filter, making the event less intrusive on the behavior of the engine during a regeneration cycle. The 6.7 also does much more DPF cleaning "passively", meaning that it happens while you drive whenever the right conditions are met, usually when running under heavy load. The "active" regen is the one that makes oil and the 6.7 does this less than the 6.4 does but it's too early to tell if making oil is going to be an issue.

Making oil was not an issue with me as I put over 150K on my 6.4. I did however do 5K oil change intervals. On my 6.7 I change the oil when the computer tells me to which has been over 7500 miles and less than 10K miles, depending on several factors. Oil level has not been high yet.

 

DEF is used with the DOC to neutralize NOx.

DPF is for particulates.

I am not terribly comfortable with the use of injectors to put oil in the exhaust, which means it also ends up in the turbo, etc (potential carbon problem???)

The fuel could have been injected post turbo...


I also wonder why a plug in wall plug regen approach was not offered, as it is a proven method for HD vehicles like buses.

 

Yes I did all deletes exhaust and programer and bigger tires and only have 4000 miles. That's why I said I'm going to take a bath when I get rid of it

 

Owch.. there are no good answers in your situation.

 

How does this engine handle idle time

 

Depends on your area... but apparently not so good.

There are issues coming up in cold climates with idling.

 

I only know what happens on FTE and there has not been a pattern yet to predictable troubles and doing something to prevent it.

By now, most with the 6.4 will elevate the idle with SEIC. The 6.7 is a little more tricky to hook up the SEIC because you have to regulate the idle with a potentiometer or a resistor of a known value to target your RPM.

In general, elevated idle would be a good idea and some day somebody may have an engine issue and specify whether or not high idle would help, or if high idle was used and did not do any good.

I think the current cold climate issues are mainly to do with the DEF system failing. I would be surprised if some kind of anti-freeze system to supplement the factory set up does not come to life.

 

Are you saying the def system is freezing? I did have the high idle on the 6.4 and never had a problem and did a lot of idling.n

 

First model year teething problems is horse**** like most of the disussion in this particular thread.

 

There have been claims of crystallization at the injector nozzle for the DEF fluid inside the misting chamber, these were early on in the 6.7 series. There also have been an increase in posts from cold climate owners of DEF issues and most do not have a clear explanation yet. DEF fluid does freeze, I think it's around 13 degrees. Depends on the BTU rating of the heated DEF system I suppose. You folks wayyyy up there running these trucks in sub-freezing temps for weeks on end are the ones to test this system out.

 

If you are going to sling some mud like this, go ahead and point fingers. Who are you referring to? If it's me, bring it......You see where I live.