2019 Duramax service exhaust soon
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.
Forum Discussion
Grit dog wrote:
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!
I find that a lot of these types sit there and wait for you to email them back or give them a phone call with the answer.
