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Exhaust Noise Help???

snowman44

By snowman44
September 10, 2015 in 1999-2013 Silverado 1500 & Sierra 1500

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snowman44

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snowman44

Posted September 10, 2015

Posted September 10, 2015

I have a 2008 silverado with mbrp split dual rear side exhaust that is a year old. When driving and idling the truck makes a vibrating noise that you can hear in the cab coming from exhaust. I have checked all the hangers and they are all set. Sounds like the noise is coming from muffler but muffler is in great shape. Any suggestions???Thanks for help in advance.

GLSierra13

Enthusiast

GLSierra13

Posted September 11, 2015

Posted September 11, 2015

It could be a baffle inside the muffler has come loose.

snowman44

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snowman44

Posted September 11, 2015

Author

Posted September 11, 2015

Not being sarcastic because I am no mechanic bit i am assuming that would mean I need another muffler?

Enthusiast

ifixedit

Posted September 11, 2015

Posted September 11, 2015

Could it be one of the heat shields on the converters? I've seen them come loose and make a rattling / vibrating noise.

anumber1

Enthusiast

anumber1

Posted September 11, 2015

Posted September 11, 2015

Personally, I would get under the truck and bang the exhaust system with a rubber hammer, looking, listening for the rattle.

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