1991 Buick Reatta Service and Repair Manual

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Factory-Grade Data

1991 Buick Reatta 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 Convertible 2-Door
  • Base 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

1991 Buick Reatta Recalls & Complaints

No active recalls The 1991 Buick Reatta has no recalls on file with NHTSA.
TSB #10246631

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

TSB #51497

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

TSB #50571

COLD START RATTLE NOISE. *TW

TSB #39308

COLD START RATTLE NOISE. *TW

20141118Component: SERVICE BRAKES

TL* THE CONTACT OWNS A 1991 BUICK REATTA. WHILE DRIVING 30 MPH, THE BRAKES FAILED TO ENGAGE. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE

20010122Component: STRUCTURE

WHILE DRIVING AT 35 MPH CAR SUDDENLY JUMPED TWO LANES TO LEFT, CONSUMER LOST CONTROL. DEALER FELT THAT ENGINE CRADLE BOLTS A ROTTED OUT. THERE IS RECALL 00V189000/ ENGINE CRADLE BOLTS FAILURE ON

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