2018 Chevrolet Tahoe — single-cylinder misfire comes and goes — second opinion before I spend money

This is usually cheaper to test than to guess. Move a coil or plug on the 2018 Chevrolet Tahoe if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. Stop there until you know. If this is nothing, great. I want that in data.

Cleared nothing. I want service to see the alert on the 2018 Chevrolet Tahoe first. Parking it somewhere I can hear it better next time.

Ask what changed right before it started. If a shop can't duplicate it on the 2018 Chevrolet Tahoe, bring a video plus freeze-frame data, not just a story. Don't erase codes until someone who can help has seen them. This is from a 2018 Chevrolet Tahoe in New Jersey with 132,500 miles. Happy to compare notes if your setup is different. Next check is the cheap one I can do in a driveway.

Intermittent stuff lies if you only catch it once. Write temp, speed, and in-gear vs coast when the 2018 Chevrolet Tahoe does it — then decide on parts. That's the branch I'd chase this week. On “single-cylinder misfire comes and goes — second,” that was the fork that mattered for me. Post the numbers (or the code) and people can get more specific. This is the filter I use when the thread starts repeating itself. Doing the boring step first on purpose.

I'd want a measurement, not a hunch. Write temp, speed, and in-gear vs coast when the 2018 Chevrolet Tahoe does it — then decide on parts. That's the branch I'd chase this week. Keep sale price, fees, and rate as three different conversations. That's my plan before I call anyone.