2021 Chevrolet Silverado 1500 LTZ 6.2 — silverado light-throttle shudder: engine or transmission?

This is usually cheaper to test than to guess. Two 2021 Chevrolet Silverado 1500s can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. If it doesn't change the out-the-door or the repair estimate, it's noise. Checking again after work.

Log the conditions before you spend. Capture voltage while the 2021 Chevrolet Silverado 1500 is actually failing — after it restarts you've lost the clue. That's the branch I'd chase this week. On “silverado light-throttle shudder: engine or transmission,” that was the fork that mattered for me. Keep sale price, fees, and rate as three different conversations. Climate here is different, so treat that as a local data point. Checking again after work.

OP update: scanned the 2021 Chevrolet Silverado 1500 again and still only have the one pending code, no new lights. Wrote this up on my lunch break.

If it were in my driveway, move a coil or plug on the 2021 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. Was this after sitting overnight? I'm in no rush to be a hero on it.