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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1993 Buick Lesabre car and truck repair procedures including Buick engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 1993 Buick Lesabre automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 1993 Buick Lesabre

  • 1993 Buick Lesabre Custom 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
  • 1993 Buick Lesabre Limited 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L

BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Front Disc Brake (Type 2) -> Caliper Service -> CALIPER ASSEMBLE -> CALIPER DISASSEMBLE -> CALIPER INSTALLATION -> CALIPER REMOVAL
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

CALIPER REMOVAL
  • Remove approximately 2/3 of brake fluid from master cylinder.
  • Raise and support front of vehicle, then remove wheel and tire assembly.
  • Position suitable pliers over inboard pad and housing as shown in Fig. , and squeeze pliers to compress caliper piston.
  • If caliper assembly is being removed for service, remove inlet fitting attaching bolt, copper washer, and inlet fitting from caliper housing. Plug opening in inlet fitting to prevent fluid loss and contamination. Do not crimp brake hose, as this may damage internal structure of hose. If only shoe and lining assemblie...

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BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Power Brake Units -> Power Brake Unit Service -> AC-DELCO TANDEM DIAPHRAGM TYPE -> Assemble -> Assembly -> BCIA SINGLE DIAPHRAGM TYPE -> BCIA TANDEM DIAPHRAGM TYPE -> Disassemble -> Disassembly -> GEO METRO SINGLE DIAPHRAGM TYPE -> OVERHAUL -> TOYOTA/GM SINGLE DIAPHRAGM TYPE
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

AC-DELCO TANDEM DIAPHRAGM TYPE
OVERHAUL
Disassemble
  • Remove pedal pushrod boot, silencer, check valve, vacuum switch and grommets, as equipped, then the front housing seal.
  • Scribe matching marks between front and rear housing sections, then mount booster assembly in suitable holding fixture with rear housing facing up.
  • Apply pressure to housing with holding fixture forcing screw and rotate rear housing counterclockwise to unlock housing halves.
  • Slowly release spring tension, then remove booster assembly from holding fixture. Do not allow spring tension to release suddenly, as ...

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BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Front Disc Brake (Type 2) -> Description
Vehicle: 1993 Buick Lesabre Limited 3.8 V6 GAS

The caliper has a single piston and is mounted to the support bracket by two mounting bolts, Figs. through . The caliper assembly slides on the two mounting bolts. Upon brake application, fluid pressure against the piston forces the inboard s...

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BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Hydraulic Brake Systems -> Description -> BRAKE DISTRIBUTION VALVE & SWITCH -> BRAKE WARNING LAMP SWITCHES -> COMBINATION VALVE -> COMPONENT DESCRIPTION -> Diagonally Split System -> Failure Warning Switch -> Fluid Level Sensor -> Front & Rear Split System -> Metering Valve -> Proportioning Or Pressure Control Valve -> SYSTEM OPERATION -> Testing Warning Lamp Operation
Vehicle: 1993 Buick Lesabre Limited 3.8 V6 GAS

SYSTEM OPERATION
Front & Rear Split System

When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems, Fig. .

If the rear (secondary) brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.

If the front (primary) brake system fails,...

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BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Power Brake Units -> General Service
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies, which use engine vacuum or, in some cases vacuum pressure developed by an external vacuum pump. The second type is a hydraulic pressure assist mechanism, which use pressure developed by an external pump (usually the power steering pump). Both systems act to increase the force exerted on the master cylinder piston by the operator. This in turn increases the hydraulic pressure delivered to the wheel cylinders, while decreasing driver effort necessary to obtain acceptable stopping performance.

V...

CLICK HERE TO GET FULL ACCESS TO 1993 Buick Lesabre BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1993 Buick Lesabre AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1993 Buick Lesabre cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Front Disc Brake (Type 2) -> Brake Pad Service -> INSTALLATION -> REMOVAL
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

REMOVAL
  • Remove caliper assembly as described in "Caliper Service."
  • Remove shoe and lining assemblies from caliper, Figs. through , noting the following:
    • On models with tab mount outer shoe (all except series 3264), straighten bent over shoe tabs with suitable pliers.
    • On models with spring mount outer shoe (series 3264), insert screwdriver between shoe and caliper and disengage buttons on shoe from holes in caliper.
  • Remove sleeves and bushings from grooves in caliper mounting bolt holes, Figs. through .
INSTALLATION
  • Lubricate new bushings with suitable grease, install bushings in cali...

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Shop online for auto body parts, engines, wheels, lights...

Click here to view more details about 2005 Buick Lesabre Bumper Cover, Front2005 Buick Lesabre Bumper Cover, Front.

Source: Auto Body Parts Store

$309.75

Click here to view more details about 1999 Buick Lesabre Radiator Fan, Driver Side1999 Buick Lesabre Radiator Fan, Driver Side, 5 blades; Single type; Includes motor and shroud; A high quality, OE replacement radiator fan shroud assembly; Backed by 1-year, unlimited-mileage warranty..

Source: Auto Body Parts Store

$47.06

Click here to view more details1995 Buick Lesabre Radiator, Radiator; V6; With Engine Oil Cooler; Without Sensor, , .

Source: Wheels / Rims, Mirrors & Lights Store

$148.50

Click here to view more details1991 Buick Century Custom V6, 3.3 L, 204 CID Rebuilt Engine, Roller cam, 1 piece rear seal, Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,633.00

Click here to view more details1980 Buick Lesabre Used Alternator, 5.0, AUTO, RWD 60 thru 63 amp, Very Good.

Source: Used Auto Parts Store

$99.00

Click here to view more details2000 Buick Lesabre Used Air Injection Pump, 3.8, AUTO, FWD (Calif), Very Good.

Source: Used Auto Parts Store

$149.00
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