HomeAll RepliesReply To: 2023 Silverado 5.3 Exhaust Leak Reply To: 2023 Silverado 5.3 Exhaust Leak Sponsored August 4, 2023 at 1:24 pm #773217 TonyDParticipant I took it to another dealership who found the problem, and fixed it. It was a flange that was out of round… Covered under the bumper to bumper. 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