Bad Engine Vibration at idle

[Richards]

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 replacement due to metal being in the fluid and grinding from first to second. Still grinds even after replacement. Have an appointment set up next month but has gotten bad recently. Dealership messed up and forgot to bolt down brackets and hardware after it was given back to me. Hardware near transfer case was loose and rattling. Going to another dealership.
Plus at 13,000miles the cp4 blew up on the highway leaving me stranded. last year

any ideas? '
thanks -jake

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[22EcoDs]

Mine vibrates too but doesn't rattle. It's also intermittent. Happened before and after tune so it's not that.

 

[OldSarge]

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 replacement due to metal being in the fluid and grinding from first to second. Still grinds even after replacement. Have an appointment set up next month but has gotten bad recently. Dealership messed up and forgot to bolt down brackets and hardware after it was given back to me. Hardware near transfer case was loose and rattling. Going to another dealership.
Plus at 13,000miles the cp4 blew up on the highway leaving me stranded. last year

any ideas? '
thanks -jake

Wow, sounds like some really poor work at the dealer. Just a guess, but sounds like more related issues and possibly more bolts that weren’t torqued to spec. I wouldn’t drive it unless it was to a nearby independent mechanic to look it over. An independent look would be helpful before taking it into the second dealer so you can verify what they tell you.

 

[Richards]

thanks I’ll give it a try

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