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Reply To: 2015 Yukon Denali rough idle issue and general frustration

February 24, 2015 at 11:40 am #86645
GM-4-LIFE
Participant

It’s a common issue. My 2015 Escalade with the same 6.2L had the same issue. It felt like more like an engine RPM flutter. It would go up and down. It’s due to mis-alligned motor mounts. The dealer followed the TSB GM has out on the issue and it fixed the issue nicely. Idle flutter is now gone.

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