Chevrolet Avalanche 2500 Problem Report

Chevrolet Avalanche 2500 Popping Noise From Muffler Heat Shield

(7 reports)

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.

muffler rattlers when idling -
after shutting off truck, i hear a pop coming from exaust -
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