Positioning:
Essential DIY repair and maintenance resource for owners of the 1999 Buick Century.
Advantage:
Officially licensed, OE-derived data provides superior accuracy and completeness compared to generic aftermarket manuals.
Convenience:
Instant online access, downloadable PDF format for offline use, compatible with multiple devices.
Value:
Cost-effective alternative to dealership service or expensive printed manuals, enabling significant savings on repairs.
Engine:
3.1L V6 (L82), 3.8L V6 (L36)
Drivetrain:
Front-wheel drive (FWD)
Suspension:
Front McPherson strut, Rear independent trailing arm
Steering:
Power-assisted rack and pinion
Brakes:
Front disc, Rear drum (ABS optional)
Electrical:
Wiring diagrams, fuses, relays, lighting, accessories
HVAC:
Heating, Ventilation, Air Conditioning system
Body And Interior:
Body panels, trim, seats, dashboard
Diagnostic Troubleshooting:
Fault code interpretation, symptom-based diagnostics
Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups
Repair:
Engine component replacement, transmission service, brake pad replacement, suspension repair, electrical component troubleshooting and replacement
Disassembly And Assembly:
Step-by-step instructions for major component removal and installation
Depth:
Comprehensive (OE-derived data for diagnostics, repair, and maintenance)
Transmission Type:
4-speed automatic (4T65-E)
Optional Transmission:
N/A (No manual transmission option)
Transmission Features:
Electronically controlled with overdrive, torque converter clutch
Transmission Fluid Type:
Dexron III (or equivalent)
NHTSA Frontal Driver:
N/A (Vehicle tested prior to current rating system)
NHTSA Frontal Passenger:
N/A (Vehicle tested prior to current rating system)
IIHS Moderate Overlap Frontal:
Acceptable
ABS:
Optional Anti-lock Braking System (ABS)
Airbags:
Driver and front passenger airbags
Seatbelts:
Front pretensioner seat belts
Oil Change Interval:
Every 5,000 miles or 6 months (using recommended oil)
Air Filter Replacement:
Every 30,000 miles
Spark Plug Replacement:
Every 100,000 miles (Platinum or Iridium)
Engine Oil Type:
SAE 5W-30 Synthetic Blend (API Certified)
Engine Oil Capacity:
4.5 quarts (4.3 L) with filter (3.1L V6); 4.5 quarts (4.3 L) with filter (3.8L V6)
Coolant Type:
GM Goodwrench DEX-COOL Extended Life Antifreeze/Coolant
Common Problem 1:
Intake manifold gasket leaks (especially on 3100 V6 engine)
Common Problem 2:
Head gasket failures (on some early 3800 Series II engines)
Common Problem 3:
Transmission solenoid issues or failure (4T65-E)
Common Problem 4:
Power window motor failures
Common Problem 5:
EGR valve issues leading to poor idle or stalling
Buick Legacy:
Buick, a division of General Motors, has a long history of producing comfortable, reliable, and value-oriented vehicles.
Century Evolution:
The 1999 Century is part of the GM W-body platform, a successful mid-size car platform used across GM brands. It replaced the previous generation Century and focused on refinement and comfort.
Manufacturing Plant:
Oshawa Car Assembly, Ontario, Canada
