Question about 2005 Chevrolet Avalanche

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2005 Chevy Avanlanche running bad

2005 chevy avalanche is running real bad and shuts off while driving. We changed wires and spark plugs. Still didn't work put on computer, it said cat. converter, Still running bad. So now dealership is cluesless. This female needs HELP!!!

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  • tashabrocks Sep 25, 2009

    Dealer ship is not 100% sure its cat. converter wants to drop exhaust to look thats more money

  • tashabrocks Sep 25, 2009

    Do i let them drop exhaust on my truck to make sure its the cat. converter?

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Code PO 420 is a catalytic converter code. Any dealership code reader will also convert it to plain english for the mechanic that read the code. Whatever your warrently, all catalytic converters have a silent warrenty that the dealer is required to honor. They are playing dumb until your warrenty runs out. They know what this issue is. If they don't replace your catalytic converter call a lemon law lawyer.

Posted on Oct 03, 2009

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What is the code, P0420?? if its the cat converter is bad why is the dealer clueless? how many miles?? converter has 8/80k warranty. if the converter is plugged up it will run bad, no power stall..... its the same as being constipated.

Posted on Sep 25, 2009

  • Ted Schore Sep 28, 2009

    If they dont have a clue, find a dealer that KNOWS what they are doing. This should be easy, either its bad, or its good.

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