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Engine Vibration
2021 1500 Laramie Etorque. I have an engine vibration at 1400 rpm. This only happens when the truck is in "ECO" mode. It is most noticeable at 43mph in 7th gear or 53mph in 8th gear. I can shut off the "ECO" mode and the engine is smooth. Is this normal?? The engine/transmission stumbles...- R G F
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- Forum: Engine & Performance
