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thanks I’ll give it a try

Hey Jeepers, 2021 3.0 sport 27,700 miles. Bad vibration after engine elevates RPMs from not moving idle (650+rpm) to drive or reverse engaged (710-750rpm). Goes away after 800rpm. Exhaust and DPF vibrates really bad. Heat shield shakes and rattles at idle while cold. Recent Transmission...

I know it’s an old post. The heat shield like the guy above me said. It rattles at idle. I went underneath while the truck was on. Just put my hand on it and the rattling stoped but the vibrations were so bad that my eyes were having trouble seeing it sit still. Dealership turns their ears off...