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 > 2019 Duramax service exhaust soon

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Busdriver

Shepherdsville Ky 40165

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Posted: 03/27/22 07:07pm Link  |  Quote  |  Print  |  Notify Moderator

Have a 2019 Duramax , have a service exhaust soon message check manual. The manual says contact dealer. Anyone have any ideas. Don’t seem to have any power.


Busdriver 2019 2500 Chevy Duramax , - 2017 Grand Design 303 RLS

jdc1

Rescue, Ca

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Posted: 03/27/22 07:19pm Link  |  Quote  |  Print  |  Notify Moderator

You need a scanner to tell what the problem is. Sounds like you went into limp mode, to keep from blowing something up.

#1Flyboy

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Posted: 03/28/22 07:22am Link  |  Quote  |  Print  |  Notify Moderator

U might try googling “ Duramax Forums “……

Grit dog

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Posted: 03/28/22 08:17am Link  |  Quote  |  Print  |  Notify Moderator

If I had a truck with Tier IV emissions, I would not leave home without a good code reader. Something like AlfaOBD or similar.


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Michelle.S

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Posted: 03/28/22 08:20am Link  |  Quote  |  Print  |  Notify Moderator

Many Auto Parts Stores can read the code and give suggestions. Might be something simple or major, but the code will help.


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ksss

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Posted: 03/28/22 03:40pm Link  |  Quote  |  Print  |  Notify Moderator

It should have at least basic Onstar. It will tell you what the code is.


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ACZL

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Posted: 03/29/22 02:33am Link  |  Quote  |  Print  |  Notify Moderator

Based on OP's post, I'd place $$ that the DPF (Diesel Particulate Filter) is plugged up


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Cummins12V98

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Posted: 03/29/22 06:57am Link  |  Quote  |  Print  |  Notify Moderator

Auto Parts can look at your codes.

Curious do you do a lot of short trips?


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sayoung

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Posted: 03/29/22 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

ACZL wrote:

Based on OP's post, I'd place $$ that the DPF (Diesel Particulate Filter) is plugged up

There is also 2 oxygen sensors , one on each side of the DPF filter if like my 2012.

Grit dog

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Posted: 03/29/22 04:38pm Link  |  Quote  |  Print  |  Notify Moderator

This is one of those "makes ya wonder" threads. OP posts a rather basic/cryptic post asking for help/suggestions, then doesn't return, even though it appears to be an immediate type of issue.

Could be....
DEF injector
DEF pump
DPF or SCR plugged
Malfunctioning sensor on exhaust, EGTs or O2s
Bad DEF sensor or bad DEF
Drives like an old man and plugged 'er up and hasn't spent any time completing a regen.
Physical issue with DFP or SCR

These off the top of my head. Bout as good as suggestions as can be given with literally no additional info provided by the guy with the constipated exhaust!

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