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.

RepairPal Verified
Average mileage: 130,000 (130,000–130,000)
7 model years affected: 2002, 2003, 2004, 2005, more2006, 2007, 2010
8 people reported this problem
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problem details
2004 GMC Sierra Denali 130,000 mi,
My heat sheid started rattling an no signs of ware.