2025 Tahoe 6.2-liter Z71 engine light flashing, stuttering engine

[ChevyFan47]

My 2025 Tahoe Z71 6.2-liter had less than 700 miles on it when the engine light started flashing and the engine stuttered/fluttered/hiccups at any speed. This is an intermittent problem. The dealership has twice tried remedy this by checking which cylinder is misfiring, but each time I've gotten it out of the shop, the trouble starts again within a day. Help! This is a troubling situation. The truck is brand-new. Is this even fixable?

 

[pa31p]

You pretty much have to rely on the due process/troubleshooting by dealer to fix it. the good news is they will fix it one way or another. yes frustrating! but it does happen. so give them some time to actually do troubleshooting. if they don’t fix it 100% there’s multiple other options. for now, let them do their job.

Could be as simple as a coil or sparkplug or connector loose. CEL flashing usually misfire of somesort.

 

[ChevyFan47]

You pretty much have to rely on the due process/troubleshooting by dealer to fix it. the good news is they will fix it one way or another. yes frustrating! but it does happen. so give them some time to actually do troubleshooting. if they don’t fix it 100% there’s multiple other options. for now, let them do their job.

Could be as simple as a coil or sparkplug or connector loose. CEL flashing usually misfire of somesort.

Thank you so much.