Axltransam

The SES light came on in my car and I had it scanned at a local mechanic. The code was catalytic converter efficiency. What i was wondering is if GM has some kind of warranty on emissions stuff. My mechanic mentioned something about a 5 year 50,000 mile warrantly on emissions stuff or an 8 year 80,000 mile warranty. Is there any truth to this. Any help is appreciated.

Caribe

iTrader: (1)

If the cats went bad they are covered up to 80,000 miles.

Tim98Z28

Yeah but chances are you just have an O2 sensor going bad.

01 Red WS6

iTrader: (4)

I had a cat replaced under warranty. My car only had 45k miles at the time. The cats are covered for 80k

SporkLover

iTrader: (2)

O2 sensors are part of emissions equipment.

Ping King

iTrader: (20)

any mods on the car? the stealership will somehow turn it around and blame you.

Axltransam

car is bone stock

demonspeed

iTrader: (7)

If it's an O2 sensor, they won't replace that, but chances are they'll replace the cats. Just take it to the dealership and have them scan the code and see what they say.

Axltransam

is replacing the 02 sensor an easy job...does a bad o2 sensor hurt the vehicle or make it run like ****? thanks

demonspeed

iTrader: (7)

It's super easy to replace. The only thing it'll hurt is usually mileage. I think some people say though that the computer will sometimes pull timing if the O2 code is thrown. I don't know if that's true or not though.