Popping Noise From Muffler Heat Shield on GMC Sierra 2500

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: 226,000 (226,000–226,000)
Exhaust & Emissions affected: Gasoline
6 model years affected: 1999, 2000, 2001, 2002, more2003, 2004
7 people reported this problem
0 people shared problem details
Related Items:
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail,...
humming noise coming from underneath cab
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal faul...
my transfer case was not going into gears right with my 4x4 gm sierra 2500 1999 model. i refill...
A clicking noise may be noted from the turn signal flasher after the turn signals are switched...

Related Content