HomeAll RepliesReply To: 3.0 Duramax Start-Up Reply To: 3.0 Duramax Start-Up Sponsored August 22, 2021 at 6:09 am #668640 rbdjrParticipant Update, There is a new Service Bulletin that came out 8/16/21 for this exact condition, something about shimming the cam sensor. I have not made an appointment yet Sponsored 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. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored