Chevrolet Avalanche 1500 Problem Report

Chevrolet Avalanche 1500 Popping Noise From Muffler Heat Shield

(9 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.

Started rattling and popping around 160,000 miles. -
Rattles when sitting at drive thru's very annoying!!! -
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