1994 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
- Special Sedan 4-Door
- Base Sedan 4-Door
- Custom Wagon 4-Door
- Special Wagon 4-Door
- Custom Sedan 4-Door
Engines covered
- 2.2L 2190CC 134Cu. In. l4 GAS OHV Naturally Aspirated
- 3.1L 189Cu. In. V6 GAS 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
THE CRUISE CONTROL CABLE MAY SEPARATE FROM THE CONDUIT END FITTING WHILE ENGAGED AND ACCELERATOR CONTROL COULD BE LOST.
LOSS OF ACCELERATOR CONTROL MAY NOT REDUCE ENGINE SPEEDTO A LEVEL ANTICIPATED BY THE DRIVER. ALTHOUG
REPLACE THE CRUISE CONTROL CABLE.
THESE VEHICLES WERE ASSEMBLED WITH REAR OUTBOARD SAFETY BELT ANCHORAGES THAT MAY NOT WITHSTAND THE REQUIRED LOAD. THIS DOES NOT COMPLY WITH FMVSS NO.210, "SEAT BELT ASSEMBLY ANCHORAGES."
CONSEQUENCE OF NON-COMPLIANCE: IN A COLLISON, STRESS CAN CAUSE THE ATTACHMENT METAL TO TEAR AND ALL
DEALERS WILL REPLACE THE EXISTING ANCHOR BOLTS WITH A NEW SHOULDER BOLT AND THREAD LOCKING ADHESIVE.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
REVISED PISTON PIN REMOVAL / INSTALLATION PROCEDURE. *TT
SOME OWNERS MAY COMMENT ON DRIVEABILITY SYMPTONS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING
SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT RE
SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
SOME OWNERS MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE. *TT
PROM CALIBRATION REPLACEMENT FOR NOX EMISSIONS. *YC
Showing the 8 most recent of 27 technical service bulletins on file with NHTSA.
DRIVER SIDE AIR BAG DID NOT DEPLOY DURING AN ACCIDENT. *YH
SEAT BELT FAILED TO RESTRAIN DRIVER/PASSENGER DURING COLLISION, CAUSING INJURIES.
NO DEPLOYMENT OF AIRBAGS DURING COLLISION, CAUSING INJURIES.
VEHICLE WAS TRAVELS ALONG 113 IN KANKAKEE IL AT APPROX 55 MPH, AS VEHICLE ENTERED A BEND THE RIGHT FRONT TIRE TREAD SEPARATED FROM THE VEHICLES RIGHT FRONT TIRE CAUSING THE VEHICLE TO GO INTO A LEFT S
FIRST CRASH---VEHICLE ACELERATED UNCONTROLLABLY WITH FOOT ON BRAKE / SECOND CRASH---VEHICLE ACCELERATED IN REVERSE EXTREMELEY FAST WITH GEAR SHIFT IN THE PARK POSITION UPON TURNING KEY IN IGNITION. *A
Showing the 5 most serious of 144 complaints filed with NHTSA.
