what is it that would cause the exhaust system to make a rattling noise on 1999 Chevrolet Suburban 1500

It sounds like something inside the converter is loose, is that possible ??

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1 answer 3 comments
Yes it is! Most likely the catalyst inside the converter!
Thank you wetry for responding to my question. I suppose that means that it would have to be replaced ?? and thank you for your time..
You R welcom, yes it will perform better and that means more mpg. Visit a muffler shop, will save a buck or two cause there are aftermarket converters that work quite well.
Once again, I thank you for your help and time.. This really is a great site for someone like me to have access too..