Misfire light throttle when cold

[SquireSCA]

2 hours ago, Robotaz said:

 

Yeah I’m just wondering if the brake software is part of the ECM tune. Used to brake software went to its own module, similar to the tranny.

 

I honestly have no idea... this truck is still new to me and I don't know a ton about it, yet.

[Billfisher08]

I have the same concern with the missfire on slight acceleration when the engine is cold.

[Old K10]

My 2021 Trail Boss with the 5.3 is cold blooded.  The engine skips pretty bad if I do not let it warm up.  

[Dan Crum]

I just had a similar experience with my 2019 Silverado RST. I ended up with a clicking noise from the right side of the engine. Turned out a drive rod on the right side somehow got bent and the vehicle showed a history of misfires. They replaced it under warranty and 2 days later (just now as I'm looking this up) I pulled out of my driveway after idling my vehicle for about 5 minutes and I had the misfires again for about a full block until I got to the next intersection. From there it didn't do it the rest of my 15 minute trip to work. I'm going to call the dealership again to explain that it's still misfiring. It's doing it only when it sits for an extended period of time in-between uses in this colder winter weather.