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Reply To: Repeated Engines Failing

December 8, 2021 at 6:12 pm #683205
pridgjl
Participant

Help- It’s my understanding that these lifter/valve issues (both AFM and DFM) have been around for a number of years. I even have read that GM has sent letters to dealers to repair inventory on lots for the 2021 model year. Does anyone know if they fixed this issue for the refreshed 2022?

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