1991 Cadillac Brougham Service and Repair Manual

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Factory-Grade Data

1991 Cadillac Brougham 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
  • d'Elegance Sedan 4-Door

Engines covered

  • 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
  • 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

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Vehicle Safety Data

1991 Cadillac Brougham Recalls & Complaints

NHTSA #91V10100014/06/1991Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS
Consequence

STOPPING DISTANCE REQUIREMENTS OF FMVSS 105 ARE NOT METWITH POWER BRAKING ASSIST UNIT INOPERATIVE.

Remedy

REPLACE ORIGINAL 1" REAR WHEEL BRAKE CYLINDER WITH A 1 1/16" CYLINDER.

NHTSA #91V10000014/06/1991Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS
Consequence

STOPPING DISTANCE REQUIREMENTS OF FMVSS 105 ARE NOT METWITH POWER BRAKING ASSIST UNIT INOPERATIVE.

Remedy

REPLACE ORIGINAL 1" REAR WHEEL BRAKE CYLINDER WITH A 1 1/16" CYLINDER.

NHTSA #91V09400014/06/1991Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS

REAR WHEEL BRAKE CYLINDERS ARE TOO SMALL TO ALLOW FOR PROPER BRAKING.

Consequence

STOPPING DISTANCE REQUIREMENTS OF FMVSS 105 WERE NOT METWITH POWER BRAKING ASSIST UNIT INOPERATIVE.

Remedy

REPLACE ORIGINAL 1" REAR WHEEL BRAKE CYLINDER WITH A 1 1/16" CYLINDER.

NHTSA #91V01100011/01/1991Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM

LIMOUSINE FAILED TO MEET STOPPING DISTANCE REQUIREMENTS OF FMVSS 105.

Consequence

INCREASED STOPPING DISTANCE COULD RESULT IN AN ACCIDENT;VEHICLES DO NOT COMPLY WITH FMVSS 105.

Remedy

REPLACE ORIGINAL REAR WHEEL BRAKE CYLINDER WITH A LARGER CYLINDER.

NHTSA #91V09200010/06/1991Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS

REAR WHEEL BRAKE CYLINDERS TOO SMALL TO ALLOW FOR PROPER BRAKING.

Consequence

STOPPING DISTANCE REQUIREMENTS OF FMVSS 571 ARE NOT METWITH POWER ASSIST BRAKING UNIT INOPERATIVE.

Remedy

REPLACE ORIGINAL 1" REAR WHEEL BRAKE CYLINDER WITH A 1 1/16" CYLINDER.

TSB #10246631

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

19950425Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTSCrash reported

ON WET PAVEMENT DURING EMERGENCY STOPPING VEHICLE SKID OUT OF CONTROL, RESULTING IN ACCIDENT. TT

20040717Component: POWER TRAIN:AUTOMATIC TRANSMISSION

JUST DRIVING DOWN THE ROAD ( ABOUT 40 MPH ) I HEARD WHAT SOUNDED LIKE THE MUFFLER FALLING OFF THE CAR WITH A BANG AND THE CAR MOVING ODDLY AND HEARING A METAL NOISE. I FOUND IT TO BE THE VERY REAR CRO

20040717Component: STRUCTURE:FRAME AND MEMBERS

JUST DRIVING DOWN THE ROAD ( ABOUT 40 MPH ) I HEARD WHAT SOUNDED LIKE THE MUFFLER FALLING OFF THE CAR WITH A BANG AND THE CAR MOVING ODDLY AND HEARING A METAL NOISE. I FOUND IT TO BE THE VERY REAR CRO

20010511Component: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

WHENEVER TAKING FOOT OFF GAS PEDAL AFTER COMING TO A STOP OR EVEN SLOWING DOWN, VEHICLE ACCLERATES FORWARD. HAS NOT CONTACTED DEALER. *AK

19991206Component: SERVICE BRAKES, AIR:ANTILOCK

NO SUMMARY

Showing the 5 most serious of 7 complaints filed with NHTSA.

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