1983 Buick Century Service and Repair Manual

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Covers all 1983 Century trims — Base Sedan 4-Door, T-Type Coupe 2-Door, Custom Coupe 2-Door +5 more ·
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1983 Buick Century service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Base Sedan 4-Door
  • T-Type Coupe 2-Door
  • Custom Coupe 2-Door
  • T-Type Sedan 4-Door
  • Limited Coupe 2-Door
  • Custom Sedan 4-Door
  • Limited Sedan 4-Door
  • Base Coupe 2-Door

Engines covered

  • 2.8L 173Cu. In. V6 GAS OHV Naturally Aspirated
  • 3.0L 181Cu. In. V6 GAS OHV Naturally Aspirated
  • 2.5L 2474CC 151Cu. In. l4 GAS OHV Naturally Aspirated
  • 4.3L 260Cu. In. V6 DIESEL OHV Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #83V10500013/10/1983Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIO

THE BRAKE PROPORTIONER VALVES MAY BREAK AND SEPARATE FROM THE MASTER CYLINDER. THIS WOULD ALLOW BRAKE FLUID TO LEAK AND WOULD RESULT IN A PARTIAL LOSS OF THE BRAKE SYSTEM.

Remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE ALL SUSPECT VALVES.

No service bulletins No technical service bulletins on file with NHTSA for the 1983 Buick Century.
19990622Component: ELECTRICAL SYSTEM:IGNITION

PLUGS SEPARATED ON THREE OCCASIONS. *YC

19990622Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS

BRAKES GRAB / GAS PEDAL STICKS. *YC

19990622Component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

BRAKES GRAB / GAS PEDAL STICKS. *YC

19990622Component: STEERING

STEERING WHEEL WAS EXPERIENCING FAILURE WHICH WAS REPLACED. HOWEVER AFTER REPAIRS WERE DONE THE STEERING IS NOISY AND HARD TO TURN. *YC

19990622Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

DEFROSTER OVERHEATS, CAUSING FAILURE. *YC

Showing the 5 most serious of 10 complaints filed with NHTSA.

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