[DakotaXD]

Anyone else have their trucks start rough after it's been warmed up?

Mine starts as it should when it's cold, but starts roughly, stutters and doesn't want to start.

Cummings tech said they will most likely do an ECM update to fix it.

 

[bigredxd]

Have not had that problem with mine and just turned 4000 miles

 

[DakotaXD]

OK thanks.

I'm going to see what the dealer thinks. I'll update afterwards.

 

[realbored]

Anyone else have their trucks start rough after it's been warmed up?

Mine starts as it should when it's cold, but starts roughly, stutters and doesn't want to start.

Cummings tech said they will most likely do an ECM update to fix it.

Could be a coolant temp sensor that is not reading correctly. Possibly a loose ground wire or poor pin fit in a connector. The ECM may be seeing a cold start condition when in reality the engine is warm.