catalyc converter

Asked by Jul 04, 2016 at 01:45 PM about the 2005 Chevrolet Blazer Extreme

Question type: Maintenance & Repair

how can i know the difference between a good catalyc
converter and a bad one

2 Answers


Most will have a rattle on the inside. If you have it off, you see light through the other end and looks like honeycomb and not melted.

2 of 2 people found this helpful.

Don't bother buying a used converter. If funds are limited go for a "universal" converter. Be sure you get the correct one for your emissions system. Either California Emissions or Federal Emissions. Check the emissions decal under the hood. If it mentions that the vehicle "conforms to California Emissions Standards" or is "C.A.R.B. compliant" you have California Emissions and will need that converter. Don't assume, if you live outside of California that you don't have California Emissions. My '00 Grand Prix, originally delivered to NJ, has California Emissions as well as my '03 S-10 Pick Up, originally delivered to Delaware. HTH. - Jim

2 of 2 people found this helpful.

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