TransmissionBuying adviceCommunity Starter

Silverado light-throttle shudder: engine or transmission?

DetailGalCommunity StarterApr 28, 20262021 Chevrolet Silverado 1500 LTZ 6.2Raleigh
At steady speed with light throttle I get a vibration that feels almost like driving over fine rumble strips. It disappears if I accelerate. What's the cleanest way to separate wheel/tire issues, cylinder-deactivation behavior and converter/transmission shudder? Trying to diagnose before I book a shop.
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FlatSixDetailer66Community StarterCommunity StarterApr 28, 2026permalink
Get the messy numbers in writing first. Ask for out-the-door on the 2021 Chevrolet Silverado 1500 with fees, add-ons, and rate on separate lines. If they balk, that's your answer. On “throttle shudder: engine or transmission,” that was the fork that mattered for me. Was this after sitting overnight? This is the filter I use when the thread starts repeating itself. That's my plan before I call anyone.
FlatSixTech31Community StarterCommunity StarterApr 28, 2026permalink
I'd push back a little: If they're pushing term length to shrink the payment, the 2021 Chevrolet Silverado 1500 price probably got worse. Then the comparison gets honest. Happy to compare notes if your setup is different. Going to compare one more dealer before I decide.
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