"COKED UP"

[blkdodge]

Anyone ever hear of a turbo getting ("coked up" dealer term)?
I lost a lot of power and massive drop in MPG while towing to Co.
Took truck 2012 3500 drw dodge to dealer and they had it for 3 days.
They say they flushed the turbo and it runs fine now.
How can this be prevented in the future and what causes this issue?

Any thoughts?

[goducks10]

I just drove my 12 Ram CTD to the store to get some Coke. Will that hurt it?:)

[mileshuff]

Old-Biscuit wrote:
Programming issue........have you had it into a dealer, explained it and had a 'reflash' done?

Yes, many times to several dealers. Did not help. Again, numerous others on various forums have reported the same issue with no resolve.

[Old-Biscuit]

mileshuff wrote:

Old-Biscuit wrote:
And no....the EB being ON will not cause you tranny shifting issues.

On 2007.5 Dodge 6.7L's EB most certainly does cause tranny downshift issues. Over the years I posted and searched numerous forums. I'm not the only one with the issue. Dodge's firmware does change shift patterns with EB on similar to when T/H is on. It is only a problem when driving in city traffic and occurs when accelerating slowly then letting off on pedal just as it was about to shift from 3-4. It downshift extremely hard. As far as I know Dodge has never corrected this issue on the 2007.5's. I use EB only on the highway where it works fine.

Programming issue........have you had it into a dealer, explained it and had a 'reflash' done?

[mileshuff]

Old-Biscuit wrote:
And no....the EB being ON will not cause you tranny shifting issues.

On 2007.5 Dodge 6.7L's EB most certainly does cause tranny downshift issues. Over the years I posted and searched numerous forums. I'm not the only one with the issue. Dodge's firmware does change shift patterns with EB on similar to when T/H is on. It is only a problem when driving in city traffic and occurs when accelerating slowly then letting off on pedal just as it was about to shift from 3-4. It downshift extremely hard. As far as I know Dodge has never corrected this issue on the 2007.5's. I use EB only on the highway where it works fine.

[coolbreeze01]

blkdodge wrote:
The dealer didn't charge for it because it fell under the 100k warranty. I do a lot of stop and go driving every day. Freeways here suck. 1.5 hours to drive 37 miles. So I guess there really isn't anything I can do to prevent this, except park it. :h

Use lower gears around town and stop & go. Use the EB. Idle as little as possible. When idling is unavoidable, run up to 1,000 rpm or so either with your foot or the idle-up feature.

[2oldman]

Rollnhome wrote:
Drive it like you stold it.

I think that's "like you done stold it."

[Rollnhome]

Drive it like you stold it.

[JamesBr]

Noone is immune. The reason you hear about it more on pickups is due to how its driven 90% of the time. The 6.0 vane issue was soot buildup OR light surface rusting in some cases (usually where the truck sat unused for long periods of time.)

The 6.7 has had soot buildup issues, even seen it on duramax, my old cummins ISC in my monaco, seen it happen on many different engine types in delivery and tow trucks due to the idling they are required to run the PTO and heavy traffic they endure regularly.

Most of the sooting problems pickup owners have can be avoid by finding a way to get out on the hightway and cruise for 15-20 minutes, it builds up the heat needed to help burn off the soot. But once it gets past a point nothing short of a proper cleaning can help it.

[Fordlover]

ChooChooMan74 wrote:
I didn't know dodge made trucks any longer...

In all seriousness, do you idle your truck before shutting it? Oil coking in the turbo is bad. My diesel tech is adamant about it. I wait to my pre turbo EGTs is below 300.

You know, all this talk isn't encouraging my 'I want a diesel' bug. Can we go back to talking about the effortless towing experience, the grin that won't go away and the great MPG. Oh and lets leave out the price of oil changes as well.

[Bedlam]

Rust in the turbo was an issue if you had an EGR cooler failure.

[ScottG]

FishOnOne wrote:

ScottG wrote:

FishOnOne wrote:

ScottG wrote:
Two very different things are being discussed here...
"Coking" is caused by shutting down a turbo (gas or diesel) that is extremely hot and has not been allowed to cool. When this happens the oil inside the turbo's oil gallery is heated to the point it turns to a solid. This blocks off further flow resulting in a damaged bearing and poor turbo action.
It has nothing to do with short trips, not driving it hard enough, too hard or anything but hot shut down. It also has nothing to do with carbon build up inside the turbo. That is a totally different subject.

It is certainly not a "Dodge" or Cummins thing. In fact it is extremely rare in those.

It certainly is a cummings thing and the dealer is certainly using the wrong term "coking" because you would not flush a turbo for a coking problem. Cummins added a cleaning port to the turbo because of this issue.

I'm sure it's the soot clogging issue that happens on a lot of first gen 6.7 cummins and there a flush kit used to clean out the turbo.

The problem here is this cleaning is a short term fix and the turbo will soot up again.

A "cummings" thing? Ridiculous brand bashing at its best.
The big three had growing problems with VGT in the beginning. ALL of them had issues and the Ford was just as susceptible as any other brand.
If they have the updates, are driven right and have the EB left on then no, they won't just "soot up again".

Ridiculous brand loyality at it's best! Cummins owns Holset so spin it however you want.

Ford's early VGT turbo problems was mostly due to rust.

And just so you know this cleaning kit is connected to the turbo! :W

MOPAR Diesel Turbo Cleaner Video

Your delusional. Rust? Yes, Ford had that problem too but I digress.
Ford, GM and Ram all had issues with VGT's. Do you think Ford came up with all those service bulletins to correct frozen VGT vanes just for the fun of it?

[FishOnOne]

ScottG wrote:

FishOnOne wrote:

ScottG wrote:
Two very different things are being discussed here...
"Coking" is caused by shutting down a turbo (gas or diesel) that is extremely hot and has not been allowed to cool. When this happens the oil inside the turbo's oil gallery is heated to the point it turns to a solid. This blocks off further flow resulting in a damaged bearing and poor turbo action.
It has nothing to do with short trips, not driving it hard enough, too hard or anything but hot shut down. It also has nothing to do with carbon build up inside the turbo. That is a totally different subject.

It is certainly not a "Dodge" or Cummins thing. In fact it is extremely rare in those.

It certainly is a cummings thing and the dealer is certainly using the wrong term "coking" because you would not flush a turbo for a coking problem. Cummins added a cleaning port to the turbo because of this issue.

I'm sure it's the soot clogging issue that happens on a lot of first gen 6.7 cummins and there a flush kit used to clean out the turbo.

The problem here is this cleaning is a short term fix and the turbo will soot up again.

A "cummings" thing? Ridiculous brand bashing at its best.
The big three had growing problems with VGT in the beginning. ALL of them had issues and the Ford was just as susceptible as any other brand.
If they have the updates, are driven right and have the EB left on then no, they won't just "soot up again".

Ridiculous brand loyality at it's best! Cummins owns Holset so spin it however you want.

Ford's early VGT turbo problems was mostly due to rust.

And just so you know this cleaning kit is connected to the turbo! :W

MOPAR Diesel Turbo Cleaner Video

[Old-Biscuit]

2013 6.7L and turbo is sooting up

Turn ON the exhaust brake when you turn engine ON

Run with the EB and hammer down once in a while.
Like one poster stated......."You need to boost it so it can burn it"

And no....the EB being ON will not cause you tranny shifting issues.

[ScottG]

FishOnOne wrote:

ScottG wrote:
Two very different things are being discussed here...
"Coking" is caused by shutting down a turbo (gas or diesel) that is extremely hot and has not been allowed to cool. When this happens the oil inside the turbo's oil gallery is heated to the point it turns to a solid. This blocks off further flow resulting in a damaged bearing and poor turbo action.
It has nothing to do with short trips, not driving it hard enough, too hard or anything but hot shut down. It also has nothing to do with carbon build up inside the turbo. That is a totally different subject.

It is certainly not a "Dodge" or Cummins thing. In fact it is extremely rare in those.

It certainly is a cummings thing and the dealer is certainly using the wrong term "coking" because you would not flush a turbo for a coking problem. Cummins added a cleaning port to the turbo because of this issue.

I'm sure it's the soot clogging issue that happens on a lot of first gen 6.7 cummins and there a flush kit used to clean out the turbo.

The problem here is this cleaning is a short term fix and the turbo will soot up again.

A "cummings" thing? Ridiculous brand bashing at its best.
The big three had growing problems with VGT in the beginning. ALL of them had issues and the Ford was just as susceptible as any other brand.
If they have the updates, are driven right and have the EB left on then no, they won't just "soot up again".

[FishOnOne]

ScottG wrote:
Two very different things are being discussed here...
"Coking" is caused by shutting down a turbo (gas or diesel) that is extremely hot and has not been allowed to cool. When this happens the oil inside the turbo's oil gallery is heated to the point it turns to a solid. This blocks off further flow resulting in a damaged bearing and poor turbo action.
It has nothing to do with short trips, not driving it hard enough, too hard or anything but hot shut down. It also has nothing to do with carbon build up inside the turbo. That is a totally different subject.

It is certainly not a "Dodge" or Cummins thing. In fact it is extremely rare in those.

It certainly is a cummings thing and the dealer is certainly using the wrong term "coking" because you would not flush a turbo for a coking problem. Cummins added a cleaning port to the turbo because of this issue.

I'm sure it's the soot clogging issue that happens on a lot of first gen 6.7 cummins and there a flush kit used to clean out the turbo.

The problem here is this cleaning is a short term fix and the turbo will soot up again.