1992 Buick LeSabre Service and Repair Manual

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🏷️ Basic Information Identification Make: Buick Model: LeSabre Year: 1992 Generation Code: H-Body (Third Generation) Trim Levels Covered: Custom, Limited, Park Avenue (as LeSabre Park Avenue) 👋 Introduction Market Position...

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Type: Car

Vendor:

Sku: 82154

Tags: 1992 Buick Car Cars LeSabre

Product variants

Description

🏷️ Basic Information

Identification

Make:

Buick

Model:

LeSabre

Year:

Generation Code:

H-Body (Third Generation)

Trim Levels Covered:

Custom, Limited, Park Avenue (as LeSabre Park Avenue)

👋 Introduction

Market Position

Segment:

Full-size sedan, targeted towards comfort and spaciousness for American families.

Target Audience:

Owners seeking to perform maintenance and repairs themselves, or understand their vehicle's systems better.

Competitive Analysis

Competitors:

Ford Crown Victoria, Chevrolet Caprice, Oldsmobile Eighty-Eight, Pontiac Bonneville.

Key Features Of Vehicle

Luxury Focus:

Emphasized quiet ride, comfortable interior, and smooth performance.

H Body Platform:

Shared platform with other GM B-body/H-body vehicles, known for its durability and traditional body-on-frame construction (though the H-body was unibody).

Key Features Of Manual

Completeness:

Comprehensive A-Z repair coverage.

Ease Of Use:

Single PDF file, printable pages, ability to enlarge images.

📋 Manual Details

Coverage Areas

Primary Coverage:

All models and all repairs for the 1992 Buick LeSabre

Secondary Coverage Emphasis:

Vehicle-specific, not generic; dealer technician level

Page Count

Estimated Page Count:

Varies by OEM publication, but described as comprehensive.

Manual Type

Type:

Service and Repair Manual

Language

Language:

English

Format

Format:

PDF Download

File Requirements:

Adobe PDF Reader and Winzip (free)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine overhaul, internal components, valve train, timing, cooling system, lubrication system, fuel system, intake and exhaust systems.

Engine Control:

Engine control system diagnosis, electronic control unit (ECU) functions, sensors, actuators, emission control systems.

Transmission:

Automatic transmission service, diagnosis, repair, fluid specifications, and clutch operation.

Drivetrain:

Drive shafts, propeller shafts, differentials, axle components, and suspension systems.

Brakes:

Hydraulic brake systems, disc and drum brakes, parking brake, ABS (Anti-lock Braking System) diagnosis and repair.

Steering:

Steering column, power steering system diagnosis and repair.

Suspension:

Front and rear suspension components, shock absorbers, struts, wheel alignment specifications.

Electrical:

Complete electrical system diagnosis, wiring schematics, lighting, power windows, locks, mirrors, horn, and instrument cluster.

Climate Control:

Air conditioning system diagnosis, service, and repair.

Safety Systems:

Supplemental Restraint System (SRS) airbag system diagnosis and components, seat belt systems, engine immobilizer.

Body And Interior:

Exterior and interior trim, doors, hood, glass, mirrors, seats, instrument panel, windshield wipers and washer system.

Diagnostics:

Troubleshooting guides, diagnostic procedures, fault codes.

Procedures Included

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections.

Repair:

Complete step-by-step instructions for mechanical and electrical repairs.

Diagnosis:

Systematic troubleshooting and diagnostic steps for common and uncommon issues.

Disassembly And Assembly:

Detailed instructions for removing and reinstalling major components.

Troubleshooting:

Flowcharts and guides for identifying and resolving problems.

Technical Depth

Depth:

Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.

Visuals:

Includes diagrams, illustrations, and wiring schematics.

Searchability:

Likely contains searchable text within the PDF for quick information retrieval.

📊 Manual Specifications

File Format

File Type:

Portable Document Format (PDF)

Print Quality:

High-resolution, printable pages with the ability to enlarge images.

Printability:

All pages are printable.

Binding Type

Binding Type:

Not applicable (digital format)

Paper Type

Paper Type:

Not applicable (digital format)

Compatibility

Operating Systems:

Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac compatible.

⚙️ Engine Specifications

Primary Engine

Engine Code:

Engine Type:

5.0L (305 cu in) V8, Overhead Valve (OHV), Tuned Port Injection (TPI)

Bore X Stroke:

3.736 in x 3.480 in (94.9 mm x 88.4 mm)

Compression Ratio:

8.5:1

Horsepower:

170 hp @ 4000 rpm (approximate)

Torque:

250 lb-ft @ 2400 rpm (approximate)

Fuel System:

Tuned Port Injection (TPI)

Cooling System:

Pressurized coolant system with thermostat-controlled fan.

Ignition System:

Electronic Spark Control (ESC) and Distributor with HEI (High Energy Ignition).

Optional Engine

Engine Type:

3.8L (231 cu in) V6, Overhead Valve (OHV), Sequential Fuel Injection (SFI) - common in earlier models and potentially base 1992, though V8 was prevalent.

🔧 Transmission

Standard

Transmission Type:

4-speed automatic (THM3T400 or 4T60-E)

Optional

Optional Transmission:

No manual transmission option typically available for this generation.

Features

Transmission Fluid:

Dexron-III (or equivalent) automatic transmission fluid (ATF).

Drive Type:

Front-wheel drive (FWD)

📐 Dimensions

Exterior

Wheelbase:

110.8 inches (2814 mm)

Length:

203.0 inches (5156 mm)

Width:

74.4 inches (1890 mm)

Height:

54.5 inches (1384 mm)

Weights

Curb Weight:

Approximately 3500-3700 lbs (1588-1678 kg), depending on options.

Gross Vehicle Weight Rating:

Varies by configuration, typically around 4600 lbs.

Towing Capacity:

Not typically equipped for significant towing; emphasis on comfort.

🛡️ Safety Features

Ratings

NHTSA Frontal Impact:

5-star rating (driver and passenger) in 1992 frontal impact tests.

IIHS Ratings:

Likely Good in frontal offset tests for its era.

Active Features

Optional Anti-lock Braking System (ABS) available on some models.

Traction Control:

Not commonly available on this model.

Passive Features

Airbags:

Driver and passenger airbags (Supplemental Restraint System - SRS) standard for 1992.

Seatbelts:

Front and rear seat belts; front shoulder belts with automatic tensioners.

Child Seat Anchors:

Not standard in the modern sense, but rear seats could accommodate child seats.

💡 Technology Features

Infotainment

Audio System:

Standard AM/FM stereo with cassette player. Optional premium sound systems and CD players were available.

Climate Control Type:

Manual climate control with A/C; optional automatic climate control available.

Instrument Panel:

Analog gauges with warning lights. Electronic dashboard options were less common or part of specific luxury packages.

Driver Assistance

Cruise Control:

Standard or optional cruise control system.

Connectivity

Diagnostic Port:

OBD-I diagnostic port for engine and transmission diagnostics, located typically under the dash.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used.

Tune Up Interval:

Spark plugs, filters, and belts typically every 30,000-60,000 miles.

Transmission Fluid Change:

Recommended every 30,000-50,000 miles, or as per owner's manual.

Fluid Specifications

Engine Oil Type:

API SG/SH, SAE 5W-30 or 10W-30 (check owner's manual for specific viscosity based on temperature).

Engine Oil Capacity:

Approximately 5 quarts (4.7 liters) with filter change.

Coolant Type:

Ethylene glycol-based antifreeze (e.g., Dex-Cool or equivalent green coolant) mixed 50/50 with distilled water.

Coolant Capacity:

Approximately 14-16 quarts (13.2-15.2 liters).

Known Issues

Engine Mounts:

Worn engine mounts can lead to vibration and knocking noises.

Transmission Problems:

Early 4T60-E transmissions could experience solenoid issues or torque converter problems.

Electrical Gremlins:

Age-related issues with wiring harnesses, grounds, and dashboard components are common.

Fuel Pump Failures:

In-tank fuel pumps can fail over time, leading to no-start conditions.

Suspension Wear:

Ball joints, tie rod ends, and strut mounts can wear out, affecting handling and alignment.

Part Numbers Example

Oil Filter Example:

AC Delco PF35, Fram PH8A, Wix 51515 (verify with specific engine and manual).

Air Filter Example:

AC Delco A1275C, Fram CA3950A (verify with specific engine and manual).

📚 Vehicle History

Brand Heritage

Buick Legacy:

Buick has a long history of producing comfortable, large sedans for the American market, often associated with luxury and refinement.

Model Evolution

Lesabre Lineage:

The LeSabre nameplate has been in continuous use by Buick since 1959, evolving through various body styles and generations to cater to changing consumer preferences.

H Body Introduction:

The third generation (H-body) LeSabre was introduced for the 1986 model year, offering a more aerodynamic and modern design compared to its predecessors.

Production

Manufacturing Location:

Primarily manufactured in the United States (e.g., Detroit, Michigan).

Production Years Of Generation:

1986-1991 (This is the final year of the H-body generation before a redesign for 1992).

1992 Redesign:

The 1992 model year introduced a significant redesign, marking the start of the fourth generation of the LeSabre, built on the new GM L-body platform.

🏆 Awards & Recognition

Recognitions

Model Reputation:

Frequently cited as a comfortable and reliable long-distance cruiser. Often appeared on 'best buy' lists for its segment in its time.

Automotive Press Acclaim:

Praised for its quiet ride and spacious interior, appealing to a more mature demographic.

Certifications

Safety Certifications:

Met all Federal Motor Vehicle Safety Standards (FMVSS) applicable for its model year.