1994 Buick Roadmaster Service and Repair Manual

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Covers all 1994 Roadmaster trims — Estate Wagon Wagon 4-Door, Base Sedan 4-Door, Limited Sedan 4-Door ·
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1994 Buick Roadmaster 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

  • Estate Wagon Wagon 4-Door
  • Base Sedan 4-Door
  • Limited Sedan 4-Door

Engines covered

  • 5.7L 350Cu. In. V8 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
NHTSA #96V01900030/01/1996Component: SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT

DEFECTIVE LOWER CONTROL ARM BALL JOINT ATTACHMENT NUTS WERE NOT PROPERLY TORQUED AND CAN LOOSEN.

Consequence

IF THE LOWER CONTROL ARM BALL JOINT LOOSENS, FATIGUES AND SEPARATES FROM THE FRONT SUSPENSION KNUCKL

Remedy

DEALERS WILL INSPECT BOTH FRONT LOWER CONTROL ARM BALL JOINT ATTACHMENT NUTS FOR PROPER TORQUE. IF T

NHTSA #94V21000025/10/1994Component: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING

THE FUEL TANK ATTACHMENT STRAP FASTENERS WERE NOT PROPERLY TIGHTENED. THE FASTENERS CAN COMPLETELY DETACH, EVENTUALLY ALLOWING THE FUEL TANK TO SAG AND THE BOTTOM OF THE TANK TO STRIKE THE ROADWAY.

Consequence

THIS CAN RESULT IN A FUEL TANK LEAK AND FIRE IF THE LEAKING FUEL IS EXPOSED TO A SOURCE OF IGNITION.

Remedy

DEALERS WILL RETIGHTEN THE FUEL TANK STRAP FASTENERS.

NHTSA #95V08200024/04/1995Component: VEHICLE SPEED CONTROL:SPRINGS

THESE VEHICLES FAIL TO CONFORM TO FMVSS NO. 124, "ACCELERATOR CONTROL SYSTEMS." AT LOW TEMPERATURES, EXCESSIVE FRICTION CAN OCCUR IN THE ACCELERATOR PEDAL ASSEMBLY.

Consequence

CONSEQUENCE OF NON-COMPLIANCE: IN THE EVENT OF A FAILURE OF THE TROTTLE RETURN SPRING, IF THERE IS

Remedy

DEALERS WILL REPLACE THE ACCELERATOR PEDAL ASSEMBLY.

NHTSA #94V04900021/03/1994Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

THE ENGINE OIL COOLER INLET HOSE MAY HAVE BEEN INSTALLED TOO CLOSE TO THE STEERING GEAR CAUSING CHAFING. THE CHAFING CAN EVENTUALLY WEAR THROUGH THE HOSE'S PROTECTIVE SLEEVE RESULTING IN ENGINE OIL LE

Consequence

IF THIS OCCURS, THE OIL LEAK ONTO THE ENGINE CAN RESULT IN AN ENGINE COMPARTMENT FIRE.

NHTSA #94V07600016/04/1994Component: WHEELS:LUGS/NUTS/BOLTS/STUDS

PAINT ON THE WHEEL MOUNTING SURFACES CAN ACT AS A SHIM BETWEEN THE WHEEL AND THE ROTOR/DRUM. AS THE VEHICLE IS DRIVEN, THE WHEEL IMBEDS INTO THE PAINT, LOOSENING THE LUG NUT AND CAUSING A LOSS OF CLAM

Consequence

ONCE CLAMP LOAD IS LOST, ALL TIRE LOADS ARE TAKEN BY THE WHEEL STUDS RESULTING IN A FRACTURE OF THE

Remedy

DEALERS WILL CLEAN THE WHEEL MOUNTING SURFACES FOR ALL FOUR WHEELS. ALSO, THE WHEEL STUDS WILL BE IN

TSB #10246631

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

TSB #603086

SOME VEHICLES EXPERIENCE ENGINE MISS/ POOR DRIVEABILITY SYMPTOMS. *YC

TSB #54328

EXPERIENCING INTERMITTENT STEERING COLUMN SNAP OR CLICK NOISE WHEN TURNING. *YC

TSB #54332

EXPERIENCING ENGINE NOISE. *YC

TSB #52601

ENGINE NOISE (INSTALL VALVE STEM OIL SEAL). *TW

TSB #52106

WATER IN AIR PUMP AND/OR DTC P0410, P0412, P1415, P1416, P0100, P0101, P0102 AND DTC 48 (INSTALL AIR PUMP SERVICE KIT). *TW

TSB #45823

UNKNOWN

TSB #37951

WIPER CHATTER DURING COLD WEATHER. *TW

Showing the 8 most recent of 9 technical service bulletins on file with NHTSA.

19970109Component: AIR BAGS:FRONTALCrash reported1 injured

CONSUMER WAS INVOLVED IN A CRASH AND THE PASSENGER'S SIDE AIR BAG DEPLOYED. ALSO, THE COVER OVER THE DASHBOARD DETACHED FROM THE DASHBOARD, CAUSING THE PASSENGER TO SUSTAIN CHEST INJURIES. *AK

19970109Component: UNKNOWN OR OTHERCrash reported1 injured

CONSUMER WAS INVOLVED IN A CRASH AND THE PASSENGER'S SIDE AIR BAG DEPLOYED. ALSO, THE COVER OVER THE DASHBOARD DETACHED FROM THE DASHBOARD, CAUSING THE PASSENGER TO SUSTAIN CHEST INJURIES. *AK

19960606Component: AIR BAGS:FRONTALCrash reported1 injured

WHILE TRAVELING 30-36 MPH VEHICLE STRUCK A DEER HEAD-ON, NEITHER DUAL AIR BAG DEPLOYED. PLEASE DESCRIBE DETAILS. *AK

19960312Component: AIR BAGS:FRONTALCrash reported1 injured

DUAL AIR BAGS DID NOT DEPLOY AFTER HITTING A DUMP TRUCK WITH THE RIGHT FRONT SIDE OF THE VEHICLE AT 50MPH. *AK

Showing the 4 most serious of 132 complaints filed with NHTSA.

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