Problem Description and Possible Solution
The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please contact your local GM dealer to see if your vehicle is included.
Average mileage: 134,066 (65,000–230,000)
36 people reported this problem
car not enough engine power,running rough,cutting out. giving more throttle makes it worse along with bad muffler. has been diagnosed with bad converter and fuel burning
can't figure out the real problem . i changed coils,sparkplugs,air filter,and comb out converter car still will not stay running i need and answer