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What year is your Corolla?

What year Corolla?

What year Corolla?

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon: Possibly a plugged PCV valve could cause this. Remove it and shake it to see if it makes a clear rattling sound and if it does, it's okay. If it doesn't, it should be replaced. They are about $5 or so.

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon:

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon:

As I mentioned I think the catalytic converter has a 100,000 mile warranty and Toyota will replace it at no charge. Call your local Toyota dealer and inquire. If the oxygen sensors were bad, they could caused the catalytic converter to fail. Watch the video above on diagnosing a catalytic...

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon:

Finding Engine Vacuum Leaks With A Cigar Finding Engine Vacuum Leaks With A Cigar

How To Check Fuel Injectors How To Check Fuel Injectors

P0420 How To Diagnose A Bad Catalytic Converter -EricTheCarGuy P0420 How To Diagnose A Bad Catalytic Converter -EricTheCarGuy

Have You Been NGK'd? Have you been NGK'd? :blink::D:thumbsup::):laughing::lol:

Which NGK spark plugs to use? The below video will provide you solid information. I personally prefer the cutting edge technology NGK Iridium IX spark plugs.

Here are some NGK spark plug videos on how to replace spark plugs -

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon:

Welcome to the Corolla Forum! :thumbsup::clap::):thumbup::thumbup1::balloon: :rockon: You are quite welcome for the help this great forum provides. There are a lot of super people here that enjoy helping others with their cars. Hats off to them! :thumbsup: Below is the troubleshooting...

Did you sell it or keep it?

If they are made of metal, there must be reason.

So did you find the Corolla you wanted?

If you compare the part numbers at the various auto part store websites like, http://www.AdvanceAutoParts.com, you can see if the part numbers are the same or not.