Chevrolet Silverado 1500 Problem Report

Chevrolet Silverado 1500 Popping Noise From Muffler Heat Shield

(18 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.

Removed catalytic converters several years ago. Around 240000 miles heat shield started rattling. Thinking about just taking it off. -
awful vibration noise coming from underneath vehicle toward the rear. -
Mechanic heated the shield, bent it so it would not touch and this cured the problem. -
This happened to me as soon as i got the truck, took the shield off, cut and trimmed, and used green lochtite on the bolts, no more noise. -
popping, or "oil can" pop while idling -
there is a raddle -
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