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2013 Chevy Cruze LT 1.4 Turbo I have code P0420. I've
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98 Astro: spark plugs to a catalytic converter bad..distributor..stall
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2005 chevy: Express van..engine light..code po 420 appears
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Car Lost Power, about 110k miles..Cat converter..car ran..p0420
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2001 chevy suburban 1500: my dealer..replace my Catalytic converter
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2003 Chevy: code Catalyst Efficiency below threshold, bank 1..4x4
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2004 chevy avalanche 1500: exhaust..codes p0430, P0336..rattling
2004 chevy avalanche 1500 truck, cats were replaced last week because the insides broke and were spitting out of the exhaust. truck is repeating the same problems even with new cats and a new muffler.… read more
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2001 Malibu: what feels like misfire or hesitation..vacume..leak
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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