Popping Noise From Muffler Heat Shield on GMC Sierra Denali

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.

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Average mileage: (–)
7 model years affected: 2002, 2003, 2004, 2005, more2006, 2007, 2010
7 people reported this problem
0 people shared problem details
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