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GMC Sierra 2500 HD Problems

Popping Noise From Muffler Heat Shield on GMC Sierra 2500 HD

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.

(10 people reported this problem)

GMC Sierra 2500 HD Vehicles With This Problem

RepairPal Verified
Average mileage: 75,750 (53,000–98,500)
Exhaust & Emissions affected: Gasoline
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007
Not Your GMC Sierra 2500 HD Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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