The emissions warranty on the 2003 Corolla is for 70000 miles. I have recently had the check engine light come on and had the dealership analyze the issue. They pointed to the catalytic converter. The check engine light came on shortly after the car reached 75000 miles. Bad new is the dealership quoted repairs at over $1200! Needless to say, I was not happy with the diagnosis nor the price. I expect better from Toyota products.
its long gone now, lets put it that way.
Check the heat shield on the catalytic converter
== == 1996 Corolla's have two oxygen sensors. The first sensor, is pre catalytic converter. It is located on the exhaust manifold. The second sensor is post catalytic converter.
Under the vehicle bolted to the exhaust pipe.
8 years or 80,000 miles.
Roughly $1300 You may have a warranty that covers it however.
The 2008 Toyota Corolla has a 3 yr./ 36000 mi. basic warranty.
The 2013 Toyota Corolla has a 3 yr./ 36000 mi. basic warranty.
The 2010 Toyota Corolla has a 3 yr./ 36000 mi. basic warranty.
The 2007 Toyota Corolla has a 3 yr./ 36000 mi. basic warranty.
The drivetrain warranty of the 2011 Toyota Corolla is 5 yr./ 60000 mi..
The drivetrain warranty of the 2009 Toyota Corolla is 5 yr./ 60000 mi..