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Horrible Rattling Noise

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Old March 13th, 2013, 3:02 PM
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Default Horrible Rattling Noise

I have as 2004 Chevy Siverado 4x4, manual trans with the 4.8 V8. Two weeks ago I heard an awful rattling noise almost like a heat shield rattling off. I only heard it when the truck was cold and going slow, once it got warmed up it seemed like it went away. Then I didn't hear it for a week. Today I have heard it almost everywhere I go fast or slow! Any Ideas?
Old March 13th, 2013, 4:03 PM
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Possibly catalytic converter. Muffler shop should be able to inspect it for free.
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