Is the 2002 Buick Century reliable?

Overall, it can be reliable when maintained, especially for daily commuting, but it’s important to watch for intake manifold gasket coolant leaks and higher-mileage transmission wear.

What are the most common 2002 Buick Century problems?

The most frequently discussed issues include intake manifold gasket leaks (coolant loss/overheating risk), transmission shifting concerns at higher mileage, ignition-related misfires, and power window or minor electrical problems.

Are maintenance costs high on a 2002 Buick Century?

Maintenance is typically moderate for an older GM sedan, with affordable parts and straightforward service, but neglected examples can become expensive if they need a gasket job, transmission work, or deferred cooling-system repairs.

What are the best years to buy for a Buick Century?

Many buyers focus on later sixth-generation models (roughly 2002–2005) due to age and availability, but condition and service history matter far more than model year—choose the best-maintained car you can find.

What should I check before buying a 2002 Buick Century?

Confirm there’s no coolant loss or overheating history, check for clean oil with no milky residue, test-drive for smooth transmission shifts, verify all power windows/locks work, and review maintenance records for cooling system and transmission service. For a deeper dive, get a complete owner’s guide with full specs, fluid capacities, and maintenance schedules to help you keep a 2002 Buick Century running at its best.

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Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2002 Buick Century Reliability ReportCommon Problems, Repair Costs & Expert Verdict

82/ 100

LOW RISK

Grade: B

A no-frills workhorse that consistently delivers dependable transportation, provided common maintenance is performed.

Full system breakdown + what I would do

Should You Buy the 2002 Buick Century?

The 2002 Buick Century stands as a testament to straightforward, robust American engineering, offering surprising durability for its age and price point. While not without its predictable weaknesses, particularly with its well-known Lower Intake Manifold gasket issue, it remains a smart choice for buyers prioritizing comfort and proven mechanicals. Successfully navigating its few common pitfalls will secure a dependable, low-cost daily driver for years to come.

Biggest Strengths

Reliable 3.1L V6 engine (if LIM gasket addressed)
Robust 4T65-E automatic transmission
Simple, proven mechanicals and readily available parts

Top Risk Areas

The systems that break first on the 2002 Buick Century. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Engine (Lower Intake Manifold Gasket)major

Suspension & Steering Componentsmoderate

Electrical System (Minor Gremlins)minor

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

STEERING

DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONS<SUP>TM</SUP>" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WERE SOLD FOR REPLACEMENT USE ON THE VARIOUS VEHICLES LISTED ABOVE. A POTENTIAL MATERIAL OR DESIGN DEFECT COULD RESULT IN THE STEERING KNUCKLE BREAKING IN THE HUB AREA.

FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES

CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE REGULATORS (UPR) WERE PRODUCED WITHOUT AN O'RING AND RETAINER.

What breaks on the 2002 Buick Century?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Buick Century by Year

Compare reliability scores across nearby years of the Buick Century. Click any year for its full report.

All Buick Century years ranked →Buick Century years to avoid →Buick Century common problems →

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Frequently Asked Questions

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