Re: Catalytic Converter Issues on 98 5.7L 2wd Suburban
If BOTH cats were replaced 2 years ago, and , you know in your mind the honey comb in one is bad, unless you clunked it on a rock and did not tell us, I am going to assume you have a fuel issue. Running rich can definitely destroy a cat. I'm going to suggest you track down the rich run issue before throwing money at the cats again.
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