Buick LeSabre 1992-1999 Brakes Specifications
Buick LeSabre 1992-1999

Buick LeSabre 1992-1999 Brakes Specifications

Discover detailed brake specifications for the 1992-1999 Buick LeSabre, including pads, rotors, calipers, and torque settings. Ideal for maintenance, repair, and upgrades to ensure safety and performance.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the braking system of the 1992-1999 Buick LeSabre. It is designed to assist owners, mechanics, and enthusiasts in understanding the components, maintenance requirements, and performance characteristics of the brakes. Use this guide for reference during repairs, upgrades, or general knowledge. The information is organized into sections for easy navigation and quick access to key details.

How to Use

Use the search functionality to quickly locate specific terms or components related to the braking system. Enter keywords like 'brake pads', 'rotors', or 'calipers' to find relevant information instantly.

Navigate through the document by clicking on the section titles in the table of contents. Each section is divided into subsections, making it easy to find detailed information on specific brake components or procedures.

Key Specifications

Brake Pad Thickness (New)

10-12 mm

Rotor Diameter (Front)

11.6 inches

Brake Fluid Type

DOT 3 or DOT 4

Master Cylinder Bore Diameter

1 inch

Brake System Capacity

1 liter

Available Specifications

Brake System Components

This section details the major components of the Buick LeSabre's braking system, including the brake pads, rotors, calipers, and master cylinder. Understanding these parts is essential for proper maintenance and troubleshooting.

Brake Pads
  • Material: Semi-metallic or ceramic
  • Thickness: 10-12 mm (new)
  • Wear Indicator: Yes
  • Replacement Interval: Every 30,000-50,000 miles
Rotors
  • Type: Ventilated front, solid rear
  • Diameter: 11.6 inches (front), 10.5 inches (rear)
  • Thickness: 22 mm (front), 10 mm (rear)
  • Minimum Thickness: 20.5 mm (front), 9.5 mm (rear)
Calipers
  • Type: Single-piston floating
  • Material: Cast iron
  • Bleed Screw Size: 8 mm
  • Replacement Interval: As needed

Brake Fluid and Hydraulics

This section covers the brake fluid specifications, hydraulic system components, and maintenance procedures. Proper fluid management is crucial for optimal brake performance and safety.

Brake Fluid
  • Type: DOT 3 or DOT 4
  • Capacity: 1 liter (approx.)
  • Replacement Interval: Every 2 years or 30,000 miles
  • Boiling Point: 401°F (DOT 3), 446°F (DOT 4)
Master Cylinder
  • Type: Dual-circuit
  • Bore Diameter: 1 inch
  • Reservoir Capacity: 0.5 liters
  • Replacement Interval: As needed

Brake Maintenance and Troubleshooting

This section provides guidelines for routine maintenance and common troubleshooting steps for the Buick LeSabre's braking system. Regular inspections and timely repairs ensure safety and longevity.

Routine Maintenance
  • Inspect brake pads and rotors every 10,000 miles
  • Check brake fluid level monthly
  • Lubricate caliper slides annually
  • Bleed brake system every 2 years
Common Issues
  • Squeaking or grinding noise
  • Soft or spongy brake pedal
  • Uneven braking or pulling to one side
  • Brake fluid leaks

Brakes Specifications

Overview

Type
Hydraulic Disc/Drum
Configuration
Front Disc/Rear Drum
Platform
H-Body
Material
Cast Iron/Carbon Composite
Location
Wheel-mounted

Dimensions

Front Rotor Diameter
10.7 inches (271.8 mm)
Rear Drum Diameter
9.5 inches (241.3 mm)
Pad Thickness
0.5 inches (12.7 mm)
Caliper Piston Diameter
2.25 inches (57.15 mm)
Brake Line Diameter
0.25 inches (6.35 mm)
Master Cylinder Diameter
1.0 inch (25.4 mm)
Parking Brake Cable Length
72 inches (1828.8 mm)

Materials

Rotors
Cast Iron with Carbon Treatment
Drums
Cast Iron
Pads
Semi-metallic Composite
Shoes
Organic Composite
Calipers
Aluminum Alloy

Features

Braking System
  • Dual-circuit hydraulic system
  • Proportioning valve
  • Self-adjusting rear brakes
  • Power brake booster
Brake Components
  • Ventilated front rotors
  • Non-servo rear drums
  • Single-piston front calipers
  • Drum-in-hat parking brake
Safety Systems
  • Brake warning light
  • Wear sensors
  • Fluid level sensor
Performance Features
  • Anti-lock Braking System (ABS)
  • Traction Control System (TCS)
  • Electronic Brakeforce Distribution (EBD)

Safety Features

Structural integrity
  • Reinforced caliper mounts
  • Thickened rotor vanes
Performance Monitoring
  • Brake pad wear indicators
  • Hydraulic pressure sensors
Emergency Features
  • Parking brake lock
  • Brake fluid reservoir level sensor

Comfort Features

Noise Reduction
  • Anti-squeal shims
  • Chamfered pad edges
  • Vibration dampening springs
Pedal Feel
  • Progressive brake boost
  • Balanced hydraulic pressure
  • Low effort pedal design
Maintenance Convenience
  • Quick-change pads
  • Self-adjusting rear brakes
  • Accessible bleeder valves

Accessories

Upgrades
  • Performance rotors
  • Ceramic brake pads
  • Stainless steel brake lines
Maintenance Tools
  • Brake piston tool
  • Drum brake spring tool
  • Caliper compression tool
Diagnostic Equipment
  • Brake pressure gauge
  • Pad wear measurement tool
  • Hydraulic system tester

Maintenance

Service interval
7,500 miles or 6 months
Service Items
  • Brake pad inspection
  • Rotor thickness measurement
  • Brake fluid check
  • Parking brake adjustment
  • Caliper slide lubrication
Maintenance Notes
  • Use DOT 3 brake fluid
  • Avoid brake fluid contamination
  • Check for uneven pad wear
  • Inspect brake lines for leaks

Warranty

Parts Warranty
Miles: 12,000
Years: 1
Coverage: Brake pads and shoes
Rotor Warranty
Miles: 18,000
Years: 1.5
Coverage: Front and rear rotors
Caliper Warranty
Miles: 36,000
Years: 3
Coverage: Caliper pistons and seals
Master Cylinder Warranty
Miles: 50,000
Years: 5
Coverage: Master cylinder assembly

Production Details

Manufacturer
Delco-Moraine
Manufacturing Process
  • Casting for rotors and drums
  • CNC machining for calipers
  • Heat treatment for components
  • Precision balancing
Quality Control
Dimensional inspection: 100% rotor thickness verification
Material Testing: Hardness testing for cast components
Performance Testing: Hydraulic pressure testing
Sustainability Practices
  • Recycled iron content
  • Water-based coatings
  • Energy-efficient manufacturing
Production Metrics
Daily Output: 2,500 units
Defect Rate: 0.15%
Lead Time: 3 days

Service Information for brakes Service

Maintenance and service requirements specific to this component

7,500
6
  • Inspect brake pads and shoes
  • Check rotor and drum thickness
  • Test parking brake operation
  • Inspect brake lines and hoses
  • Check brake fluid level and condition

Use only DOT 3 brake fluid for proper system operation

15,000
12
  • Measure pad and shoe thickness
  • Lubricate caliper slides
  • Adjust rear brake self-adjusters
  • Inspect master cylinder
  • Check ABS sensor operation

Perform brake fluid flush every 30,000 miles or 2 years

30,000
24
  • Replace brake pads and shoes
  • Resurface or replace rotors
  • Inspect and repack wheel bearings
  • Test hydraulic system pressure
  • Replace brake fluid

Complete brake system inspection required at this interval

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications for the brakes on a 1992-1999 Buick LeSabre?

The 1992-1999 Buick LeSabre features disc brakes at the front and drum brakes at the rear. The front brake rotors measure 10.8 inches in diameter, while the rear drum brakes have a 9-inch diameter. The brake system is compatible with DOT 3 brake fluid. The brake pads are designed for medium-duty applications, and the calipers are single-piston units. For optimal performance, ensure all components are replaced with OEM or OEM-equivalent parts.

Q2

What are the maintenance requirements for the brakes on a 1992-1999 Buick LeSabre?

Regular brake maintenance for the 1992-1999 Buick LeSabre includes inspecting brake pads every 10,000 miles, checking brake fluid levels monthly, and replacing brake fluid every 30,000 miles. Additionally, inspect the brake rotors for warping or excessive wear every 15,000 miles and replace them if necessary. Drum brakes should be serviced every 20,000 miles to ensure proper function and prevent damage.

Q3

How do I install or replace the brakes on a 1992-1999 Buick LeSabre?

To replace the brakes on a 1992-1999 Buick LeSabre, start by loosening the wheel lug nuts and raising the vehicle with a jack. Remove the wheels and calipers, taking care not to damage the brake hoses. Remove the old brake pads and install the new ones, ensuring proper alignment. For rear drum brakes, remove the drum and replace the shoes or pads as needed. Reassemble in the reverse order of disassembly and bleed the brake system if necessary. Always refer to the service manual for detailed instructions.

Q4

How do I troubleshoot common brake issues on a 1992-1999 Buick LeSabre?

Common brake issues on the 1992-1999 Buick LeSabre include squeaking noises, spongy brake pedals, and reduced stopping power. Squeaking noises may indicate worn or glazed brake pads. A spongy pedal suggests air in the brake system or low brake fluid levels. Reduced stopping power could be due to worn brake pads or rotors. Inspect the brake system thoroughly, bleed the brakes if necessary, and replace worn components. Consult a professional mechanic if issues persist.

Q5

How can I optimize the performance of the brakes on a 1992-1999 Buick LeSabre?

To optimize brake performance on a 1992-1999 Buick LeSabre, ensure all brake components are in good condition and properly aligned. Upgrade to high-performance brake pads and rotors for improved stopping power. Regularly flush and replace brake fluid with a high-quality DOT 3 fluid. Avoid overheating the brakes by driving moderately and allowing the brakes to cool after heavy use. Consider upgrading to cross-drilled or slotted rotors for better heat dissipation and improved braking efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

1992-1999 Buick LeSabre Service Manual

Coming Soon

Comprehensive service manual covering brake system specifications, maintenance, and repair procedures for the 1992-1999 Buick LeSabre.

GM Technical Bulletin: Brake System Updates

Coming Soon

Official technical bulletin from General Motors detailing updates and improvements for the brake system on 1992-1999 Buick LeSabre models.

Brake Parts Catalog for 1992-1999 Buick LeSabre

Coming Soon

Detailed catalog of brake-related parts, including pads, rotors, and hardware, for the 1992-1999 Buick LeSabre.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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