1992 Buick LeSabre Service and Repair Manual

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Factory-Grade Data

1992 Buick LeSabre 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

  • Custom Sedan 4-Door
  • Limited Sedan 4-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

1992 Buick LeSabre Recalls & Complaints

NHTSA #91V16700023/09/1991Component: PARKING BRAKE:CONVENTIONAL:MECHANICAL

WHEN APPLIED, THE PARKING BRAKE LEVER ASSEMBLY MAY RELEASE ONE OR MORE TEETH, REDUCING THE CABLE LOAD TO THE REAR BRAKES.

Consequence

DEPENDING ON THE EXTENT OF THE LEVER RELEASE AND ROADLEVEL. THE PARKING BRAKE MAY NOT HOLD THE VEHIC

Remedy

REPLACE PARKING BRAKE LEVER ASSEMBLY.

NHTSA #96V01500023/01/1996Component: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

VEHICLE DESCRIPTION: PASSENGER VEHICLES MANUFACTURED FROM AUGUST 1991 THROUGH JULY 1995. THE TRANSMISSION OIL COOLER LINE CAN SEPARATE WHEN THE VEHICLE IS OPERATED IN LOW TEMPERATURES IN COMBINATIO

Consequence

VEHICLE FIRES CAN OCCUR DUE TO THE SPILLAGE OF TRANSMISSION FLUID.

Remedy

DEALERS WILL REPLACE THE TRANSMISSION OIL COOLER LINES.

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 #603085

SOME CUSTOMERS MAY COMMENT THAT THERE IS CORROSION ( RUST ) APPEARING ON THE LEFT AND /OR RIGHT ROCKER PANEL(S). *YC

TSB #602751

SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE

TSB #601769

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

TSB #54065

COMMENTS ON INOPERATIVE POWER DOOR LOCKS (FRONT AND/OR REAR DOORS).

TSB #52564

EXCESSIVE VIBRATION OF ELECTROCHROMIC INSIDE REARVIEW MIRROR. *TW

Showing the 8 most recent of 17 technical service bulletins on file with NHTSA.

20010128Component: AIR BAGSCrash reported2 injured

THE DRIVERS SIDE AIR BAG FAILED TO DEPLOY DURING ACCIDENT CAUSING INJURY TO BOTH OCCUPANTS OF THE VEHICLE. NLM

20071204Component: STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDSCrash reported1 injured

TL*THE CONTACT OWNS A 1992 BUICK LESABRE. WHILE DRIVING 15 MPH, THE ENTIRE SUBFRAME THAT HOLDS THE ENGINE SEPARATED FROM THE VEHICLE. THE FAILURE CAUSED A CRASH. THE CONTACT'S HUSBAND SUFFERED MODE

20050728Component: AIR BAGS:FRONTALCrash reported1 injured

DT: THE CONTACT OWNS A 1992 BUICK LESABRE. THE CONTACT STATES THAT THE AIR BAG PARTIALLY DEPLOYED IN A HEAD ON COLLISION. AT 40 MPH. IT PUSHED CONSUMER'S CAR BACK TWO FEET AND ENGINE BACK 4 INCHES.

20010130Component: AIR BAGS:FRONTALCrash reported1 injured

VEHICLE WAS HIT IN REAR WHILE STOPPED, CAUSING VEHICLE TO COLLIDE INTO 2 VEHICLES IN FRONT, FORCE SO GREAT IT TOTALLY DEMOLISHED VEHICLE (FRONT TO REAR) ROOF BUCKLED AND PASSENGERS HAD TO BE CUT OUT O

20001031Component: AIR BAGSCrash reported1 injured

VEHICLE WAS INVOLVED IN AN ACCIDENT WHERE THE CONSUMER WAS INJURED, THE AIR BAGS EXPERIENCED NO DEPLOYMENT, CONSUMER IS REQUESTING A REFUND FOR THE PRICE OF THE AIR BAG SINCE IT FAILED. *SLC

Showing the 5 most serious of 245 complaints filed with NHTSA.

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