Popping Noise From Muffler Heat Shield on GMC Sierra 1500 Hybrid

Problem Description and Possible Solution

The muffler heat shield may become loose on the muffler causing a rattle or popping noise. Our technicians tell us there is a kit available from GM to correct this problem.

Problem Data
RepairPal Verified
Average mileage: (–)
1 model year affected: 2007
1 person reported this problem