Catalytic Convertor Problems of Buick Century

Buick Century owners have reported 3 problems related to catalytic convertor (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Buick Century based on all problems reported for the Century.

1 Catalytic Convertor problem of the 2001 Buick Century

Failure Date: 04/09/2005

The teflon scraped off, along with stumbling and hesitation. The engine was replaced. Upon the replacement of the catalytic converter, metal shavings were found in the front screen. The new catalytic converter removed all of the stumbling and hesitation. The old catalytic converter showed evidence of antifreeze and was defective at time of the new engine replacement under factory warranty. A new catalytic converter should have been installed at the time of the engine replacement. The defective engine debris and obvious head gasket leak contributed to the catalytic converter failure. General motors should pay for replacement of their poorly diagnosed catalytic converter, place in used spark plugs and wires. General motors would not give a 100,000 mile warranty for the new engine. The chassis mileage was 94k miles.

See all problems of the 2001 Buick Century 🔎.

2 Catalytic Convertor problem of the 2001 Buick Century

Failure Date: 05/28/2002

When changing gears vehicle really feels rough. Consumer can feel transmission moving like something is broken. . When in first and reverse gear the vehicle will not hold on grade at idle. The engine races and disengages itself from the transmission and thunks into gear. The engine feels funny when resuming acceleration from coast speed as though it is moving on mounts. The engine feels as if it will cut off. There is a whine from the engine compartment. The engine cabin containers are impossible to open. Steering column and casing gives slight movement during acceleration and braking. This was partially corrected by replacement of the ball joint tie rod end (right side). There are exhaust fumes being emmitted into the cabin. Possible defect with the catalytic convertor. The oil drain plug shows signs of leaking. Also, the brakes seem under powered. Consumer would like information of possible recalls on parts mentioned above, also the windshiled washer fluid disappears after filling. Jg.

3 Catalytic Convertor problem of the 2001 Buick Century

When driving there is a loud noise coming from under the vehicle due to the cataylic converter. Vehicle has been inspected by dealer . Manufacturer has been notified. Please provide additional inormation.

Other Common Engine And Engine Cooling related problems of Buick Century

Problem Category	Number of Problems
Manifold/header/muffler/tail Pipe problems	50
Engine Cooling System problems	25
Engine And Engine Cooling problems	19
Car Stall problems	16
Engine problems	12
Radiator problems	10
Gasoline Engine problems	10
Coolant Leaking problems	6
Engine Exhaust System problems	6
Engine Stall problems	5

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