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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) -> Brake System Bleed
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

Pressure bleeding is recommended for all hydraulic disc brake systems.

The disc brake hydraulic system can be bled manually or with pressure bleeding equipment. On vehicles with disc brakes the brake pedal will require more pumping and frequent checking of fluid level in master cylinder during bleeding oper...

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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 -> 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) -> Precautions
Vehicle: 1993 Buick Lesabre Limited 3.8 V6 GAS

  • Grease or any other foreign material must be kept off the brake linings, caliper, surfaces of the disc and external surfaces of the hub, during service procedures. Handling the brake disc and caliper should be done in a way to avoid deformation of the disc and nicking or scratching brake linings.
  • If inspection reveals rubber piston seals are worn or damaged, they should be replaced immediately.
  • During removal and installation of a wheel assembly, exercise care so as not to interfere wi...

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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 -> Component Service -> Assemble -> CORVETTE -> Disassemble -> EXCEPT CORVETTE -> MASTER CYLINDER OVERHAUL -> WHEEL CYLINDER OVERHAUL
Vehicle: 1993 Buick Lesabre Custom 3.8 V6 GAS

MASTER CYLINDER OVERHAUL
EXCEPT CORVETTE
Disassemble

Refer to Figs. and when performing the following procedures.

  • Remove master cylinder from vehicle as follows:
    • Disconnect and plug hydraulic lines.
    • Remove two master cylinder attaching nuts, then the master cylinder.
  • Remove reservoir cover and diaphragm. Discard old brake fluid in reservoir.
  • Inspect cover and diaphragm. Replace if cut, cracked or deformed.
  • Remove fluid level switch, if equipped.
  • On models with compact master cylinder, remove proportioner valve assembly, Fig. .
  • Depress primary piston and remove lock ring.
  • Plug primary fl...

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 1999 Buick Lesabre Parking Light, Driver Side1999 Buick Lesabre Parking Light, Driver Side, Bulbs not included; DOT and SAE approved; A high quality, direct fit OE replacement parking light..

Source: Auto Body Parts Store

$28.21

Click here to view more details1998 Buick Lesabre Trunk Lock, Keys included; Completely assembled; A high quality, direct fit OE replacement trunk lock; Ready to install on car body; With 2 years limited Trustbuilt warranty..

Source: Auto Body Parts Store

$20.96

Click here to view more details about 1991 Buick Lesabre Door Mirror Passenger Side1991 Buick Lesabre Door Mirror Passenger Side, Passenger Side Door Mirror; With Manual Remote; Paint To Match, , .

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$45.45

Click here to view more details about 1987 Buick Skyhawk Limited L4, 2.0 L, 122 CID Rebuilt Engine1987 Buick Skyhawk Limited L4, 2.0 L, 122 CID Rebuilt Engine, OHV, FWD, TBI, Warranty: 3-Year/100,000 Mile, .

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Click here to view more details2000 Buick Lesabre Used Air Flow Meter/Sensor, 3.8, AUTO, FWD 3.8L, Very Good.

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$107.00

Click here to view more details2001 Buick Lesabre Used Suspension Compressor/Pump, Air Compressor Assy, 12494811, Very Good.

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$169.00
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