1993 Buick Riviera Service and Repair Manual

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Factory-Grade Data

1993 Buick Riviera 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

  • Luxury Coupe 2-Door

Engines covered

  • 3.8L 3800CC 231Cu. 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

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Vehicle Safety Data

1993 Buick Riviera Recalls & Complaints

NHTSA #95V11000031/05/1995Component: SEAT BELTS:FRONT:WEBBING

THE FRONT OUTER SHOULDER BELT WEB SEW STOP CAN BECOME STUCK IN THE RETRACTOR. THE BELT CAN BE DIFFICULT TO PULL OUT OF THE RETRACTOR AND SOME OCCUPANTS MAY NOT BE ABLE TO FASTEN THE BELT.

Consequence

THIS CONDITION CAN PREVENT A PERSON FROM USING THEIR RESTRAINT SYSTEM RESULTING IN AN INCREASED RISK

Remedy

DEALER WILL INSTALL A WEBBING STOP BUTTON IF THE CUSTOMER REQUESTS REPAIR.

TSB #10246631

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

TSB #619370

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

TSB #6089996

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

TSB #601769

INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP. *YC

TSB #51497

COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW

TSB #50571

COLD START RATTLE NOISE. *TW

TSB #45881

GRINDING AND/OR GROWLING NOISE IN PARK ON INCLINE.*SD

TSB #43036

UNKNOWN

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

19990921Component: STEERINGCrash reported1 injured1 fatalities

DAUGHTER WAS TRAVELING APPROX. 45MPH, ACCORDING TO POLICE REPORT, HAD LOST CONTROL OF VEHICLE AFTER SWERVING. HIT ENBANKMENT ON DRIVER'S SIDE. UPON IMPACT, AIR BAG DID NOT DEPLOY. VEHICLE FLIPPED E

19990921Component: AIR BAGS:FRONTALCrash reported1 injured1 fatalities

DAUGHTER WAS TRAVELING APPROX. 45MPH, ACCORDING TO POLICE REPORT, HAD LOST CONTROL OF VEHICLE AFTER SWERVING. HIT ENBANKMENT ON DRIVER'S SIDE. UPON IMPACT, AIR BAG DID NOT DEPLOY. VEHICLE FLIPPED E

19980520Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTSCrash reported1 injured

BRAKES FAILED, CAUSING ACCIDENT/INJURY.

19980520Component: AIR BAGSCrash reported1 injured

NO DEPLOYMENT OF AIRBAG IN ACCIDENT, RESULTING IN INJURIES.

20050310Component: WHEELS

THREE OF THE ALUMINUM WHEELS , BOTH FRONT AND ONE RIGHT REAR, ARE EXPERIENCING PROBLEM WITH AIR PRESSURE LOSS. EVERY THREE DAYS CONSUMER HAS TO REPLACE AIR IN ALL THREE TIRES. ALL THE TIRES AND THE S

Showing the 5 most serious of 9 complaints filed with NHTSA.

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