Popping Noise From Muffler Heat Shield on Chevrolet Suburban 1500

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: 105,818 (50,000–165,000)
7 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006
20 people reported this problem
9 people shared problem details
when start driving in a very low speed then sounds was generated underneath the vehicle. seems like the exhaust piping area. can't even duplicated even you try to bring up the truck and tried to duplicate the sound but nothing will found. looking forward to have information on this on hoiw to resolved.
occasional popping sounds eventually stopped on their own.
takeing off at low speeds, a low vibrating sound, almost like a growl.
Most noticable at slower speed over rough roads e.g. speed bumps. Very sensitive will rattle over any small bump
hi! sir i have 2003 suburban 1500 (z71).i have problem. when is driving then i heard the sound from underneath sound like this(ring.......) but i don't known what sound come from where.sound like(put penny in the dryer is running).please! help me out. thank a lots!!!!! mahalo
Heat shield rattles at low speeds, the fix from the dealer made it worse
separation of heat shield from muffler at on end causes rattling at certain low rpm. get it tack wielded or metal straps put around to secure heat shield and rattle will cease.
Heat shield on muffler is tearing loose on one end. At low speeds it makes rattling noise.
Rattle at low speeds
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