Hey guys.....I feel like I have had nothing but problems lately. Sorry to keep bringing my problems here but I did some searching and I can't seem to find out what I need. My car just busted a power steering hose last night so I had no power steering on the way home from work. Well halfway home with no power steering my check engine light comes on. I thought maybe it had to do with the power steering but when I scanned the car I got the P0420 code. From what I can tell it means the cat is not "efficient". I know these cars have problems with the cats and I know GM extended the warranty but how long did they extend it? It's an 02 SS with 99,800 miles. I am sure I am out of the warranty but it doesn't hurt to ask. I am hoping it isn't the cat but knowing my luck I am sure it is. I drove the car for about a half hour after resetting the code and the CEL didn't come back on. I am hoping maybe it was a random thing and it won't come back on. It was extremely cold last night, 10 degrees. Would that effect it?

 

I "THINK" they bumped it up to 10 years 120,000 miles on certain years and models. Probably would be easiest to call a dealer or GM, give them your VIN number and find out.

 

You can always call your local dealership with your VIN and mileage and ask them.

 

Thanks for the info guys. I guess I will give them a call when I get a chance. The light has stayed off so far since I reset it......

 

If it came up once, and you can still get the new Cat, they will test it and replace it and it shouldn't cost you a thing.

 

I believe the problem years for the CAT was '00 and '01. At this point, I believe it's beyond the extended warranty.

It's either a bad cat or a failing O2 sensor. I know the stock cats can last a LONG time (I have a '94 Grand Am with a 3100, 214,000 miles and factory original CAT).

 

Thanks for the info guys. I did some more searching and from what I found the extended warranty was 10 Years or 120,000 miles what ever comes first. I am pretty sure my car was put in use in 01 so that would make it 11 years old Maybe I will get lucky and it will be a sensor. I wonder how much it would cost to test the cat? Here is a link to the site i found the info on if anyone is interested. GM will replace Catalytic converter - Car Forums and Automotive Chat