Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2010 GMC AFM lifter failelure. Replaced, still misfiring. › Reply To: 2010 GMC AFM lifter failelure. Replaced, still misfiring. April 18, 2020 at 3:38 am #954336 Ryan HottotParticipant Ugh, I just noticed my typo in the title.