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So, update after doing the 2nd re-calibration, still had a rough idle, but not as bad. Outside temp only 67. Does anyone know of any service bulletins that are supposed to be done in regards to this issue? It seems like there is a computer mis-compare between the air, fuel and timing on start...

I did the calibration yesterday. Had a cold start (57 degrees) this morning and truck almost died. I did the calibration process again and I'll see what happens tomorrow morning. Starts are fine after everything has warmed up. I really don't want to take it to the dealership. That probably...

I have a 2020 1500 Limited with the 5.7. I live in San Antonio and have had the same cold start, rough idle issue. Especially recently with the temps dropping to the 50s. I have a stock air intake box, other than a K&N replacement filter. I recently put in a friction modifier into the oil and...