TransmissionQuestionCommunity Starter

Anyone else: Silverado light-throttle shudder: engine or transmission?

SmoothGuy86Community StarterDec 20, 20252021 Chevrolet Silverado 1500 LTZ 6.2Michigan
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?
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V8RoadieCommunity StarterCommunity StarterDec 20, 2025permalink
I'd want a measurement, not a hunch. Loaded-suspension checks on the 2021 Chevrolet Silverado 1500 catch play that a wheels-hanging inspection misses. 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. This is the version I'd tell a friend.
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