2004 Hummer code 420

Apr 08, 2009 3 Replies

Code comes up Catalytic Converter. What's the warranty on a converter?



Al


The code can mean a number of things.......a failed converter being only one. See below. Federal law requires emissions control equipment to be warranted for 5 years or 50,000 miles. Whichever comes first.

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The federal emissions warranty hasn't been 5/50 for 13 years.

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