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.Google+
Car Problem Reports
Buick Century Plugged Catalytic Converter May Cause Loss of Engine Power
Buick Century Problem
Average Mileage: 121,554 mi (78,000 mi - 200,000 mi)
Visitor, 2001 Buick Century, 145,000 mi
My car was losing power and couldn't hardly get up to speed, took it into my mechanic, and $275 later the car is good as new again! It actually got to the point that if I was going up a hill the car would start screeching as the exhaust would start pushing its was through things it wasn't supposed to.
Visitor, 2003 Buick Century, 78,000 mi
I PAID $1800 TO GOOD YEAR REPAIR FOR A LIST OF THINGS A COMPUTOR SUGGESTED AFTER ONE WEEK AND A RENTAL CAR THEY DIAGNOSED THE CATALYTIC CONV. THEN THE LIGHT CAME ON AGAIN,AND THEY SAID IT WAS THE SENSORS I PAID another 300. after 2months aht light came on again.now what?
Visitor, 2001 Buick Century, 85,000 mi
Catalytic Converter plugged,had to replace to pass emissions. Also intake manifold leaking along
with head gaskets. Total cost-$1200.00
Visitor, 2001 Buick Century, 88,000 mi
Loss of engine power that gradually was getting worse. Problem climbing hill's was worse than on level. Had the catalytic converter relace. Engine power is back to normal. I was not aware the the warranty was extended by GM to 10years or 120,000 miles.
Visitor, 2001 Buick Century, 109,000 mi
Plugged catalytic converter