mobile-menu-icon
GM Authority

AFM/DFM problem corrected in 2023?

Viewing 3 reply threads
  • Author
    Posts
    • September 2, 2022 at 9:11 am #723000
      oi81@GMauthority
      Participant

      I was reading about the AFM/DFM problem with the 5.3 and 6.2 engines, Does anyone know if the problem has been corrected in the 2023?

    • September 6, 2022 at 1:47 pm #723520
      oi81@GMauthority
      Participant

      This is the functtion whereby it disables cylinders at random to save fuel.

    • September 8, 2022 at 11:02 pm #724002
      oi81@GMauthority
      Participant

      Yes

    • September 9, 2022 at 6:52 am #724019
      IrwinMFletch
      Participant

      Yes was my assumption but can anyone elaborate? My understanding is that AFM was gone on most engines and replaced by DFM.

  • Author
    Posts
Viewing 3 reply threads
  • You must be logged in to reply to this topic.

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.