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Muffler Buzzing Heat Shield

Old April 19th, 2015, 11:39 PM
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Default Muffler Buzzing Heat Shield

2005 Suburban 5.3
Over the years we have had several episodes of a buzzing/rattling muffler heat shield. Mechanic tack welds it but it's a recurring nuisance. Mechanic says replace the muffler to fix. Seems like a waste/expense to change a perfectly good muffler. Noise is especially bothersome at low rpms just getting going from a stop. Suggestions for a good fix appreciated!
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Old April 20th, 2015, 10:13 AM
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metal has lost its temper. replace it
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Old April 20th, 2015, 11:52 AM
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More tack welds to hold the shield down longer or replace the muffler...
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