1993 Chevrolet Lumina APV Brake Service (ONLINE REPAIR MANUALS)

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We have info for following modifications of 1993 Chevrolet Lumina APV

  • 1993 Chevrolet Lumina APV 3.1 V6 GAS, CID:189, Fuel Injection, Aspiration:189, Engine VIN:, Desg:D
  • 1993 Chevrolet Lumina APV 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L

BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Anti-lock Brakes -> Rear Wheel Anti-Lock Brake System -> System Service -> 1992 -> 1993-95 -> Anti-Lock Pressure Valve (APV) -> Brake System Bleed -> C & K Series -> Component Replacement -> Electronic Brake Control Module (EBCM) -> Electronic Control Unit (ECU) -> Isolation/Dump Valve Assembly -> Manual Bleeding -> Pressure Bleeding -> Vehicle Control Module (VCM) -> Vehicle Speed Sensor
Vehicle: 1993 Chevrolet Lumina APV 3.8 V6 GAS

Brake System Bleed

1992

Before bleeding the brakes, the front and rear displacement cylinder pistons must be returned to the top most position. Using a TECH 1 or equivalent scan tool, enter manual control function and apply the front and rear motors. Ensure enable relay is on.

Use only DOT 3 brake fluid from a clean and sealed container. Do not use DOT 5 brake fluid.

Pressure Bleeding
  • Remove master cylinder cover, ensure reservoir is properly filled.
  • Connect bleeder adapter tool No. J 35589, or equivalent, to master cylinder reservoir.
  • Connect bleeder adapter to pressure bleeding equipm...

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BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Power Brake Units -> Bendix Brake Boosters -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Full Size Except C & K Series
Vehicle: 1993 Chevrolet Lumina APV 3.1 V6 GAS

Astro & Safari

For power brake unit replacement procedures, refer to "Delco Moraine Brake Boosters."

Full Size Except C & K Series

Before disconnecting lines from power unit, depress and release brake pedal several times to allow pressure to discharge from accumulator.

  • On P30 motor home, raise and support vehicle.
  • On all models, remove master cylinder to power brake unit attaching nuts, then position master cylinder aside. Do not disconnect brake lines from master cylinder.
  • Disconnect hydraulic lines from power brake unit. Plug all lines and ports to prevent fluid loss and ...

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BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Disc Brakes -> Delco-Moraine Single Piston Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 1993 Chevrolet Lumina APV 3.1 V6 GAS

Removal

  • Siphon enough brake fluid out of the master cylinder to bring fluid level to 1/3 full to avoid fluid overflow when the caliper piston is pushed back into its bore.
  • Raise and support vehicle, remove front wheels.
  • Using a C-clamp, Fig. , push piston back into its bore.
  • Remove two mounting bolts and lift caliper away from disc.

Inspection

Should it become necessary to remove the caliper for installation of new parts, clean all parts in denatured alcohol, wipe dry using lint-free cloths. Using compressed air, blow out drilled passages and holes. Check dust boots for punctures or t...

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BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 1993 Chevrolet Lumina APV 3.8 V6 GAS

Master Cylinder

Some vehicles use a conventional tandem master cylinder with two hydraulic pistons operating inline. The primary piston controls the front brake system and the secondary piston controls the rear brake system.

Other models use a master cylinder that operates the same as the conventional master cylinder, but also incorporates a quick take-up feature in the rear chamber to reduce excessive pedal travel which may result from increased fluid displacement required to move the low drag caliper piston out against the rotor.

The quick take-up uses a spring-loaded ball check valv...

CLICK HERE TO GET FULL ACCESS TO 1993 Chevrolet Lumina APV BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Anti-lock Brakes -> Four Wheel Anti-Lock Brake System -> System Service -> 1992-95 -> 1996 -> Astro & Safari -> Brake Pressure Modulator Valve (BPMV) -> Brake System Bleed -> C & K Series -> Combination Valve -> Component Replacement -> Electro-Hydraulic Control Unit (EHCU)/Brake Pressure Modulator Valve (BPMV) Module -> Electro-Hydraulic Control Unit Brake Pressure Modulator Valve (EHCU/BPMV) Module -> Electronic Brake Control Module (EBCM) -> Except S & T Series w/VCM & VCM-A -> Front Wheel Speed Sensor -> Pressure Bleed -> Rear Wheel Speed Sensor -> S & T Series -> S & T Series w/VCM & VCM-A -> Two-Person (Manual) Bleed
Vehicle: 1993 Chevrolet Lumina APV 3.8 V6 GAS

Brake System Bleed

1992-95
Electro-Hydraulic Control Unit Brake Pressure Modulator Valve (EHCU/BPMV) Module

The EHCU/BPMV Module should be bled after replacement or if air is trapped in the unit. If bleeding is required, the module must be bled thoroughly before the wheel cylinders and calipers.

There are two bleeders on top of the unit that appear to be normal bleeders, Fig. . These are modulator bleeders and must remain closed when the unit is not pressurized.

The internal bleeders are on either side of EHCU/BPMV module. The valves are used to open the internal passages within the E...

CLICK HERE TO GET FULL ACCESS TO 1993 Chevrolet Lumina APV BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1993 Chevrolet Lumina APV AUTOMOBILES

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

Anti-lock Brakes -> Rear Wheel Anti-Lock Brake System -> Description -> 1992 -> 1993 S & T Series -> 1993-94 C & K Series & 1994-95 S & T Series
Vehicle: 1993 Chevrolet Lumina APV 3.1 V6 GAS

1992

The Rear Wheel Anti-Lock (RWAL) system, Fig. , reduces the occurrence of rear wheel lockup during severe braking by regulating rear hydraulic line pressure. Pressure applied to the rear wheel brakes is regulated by a control valve assembly located under the master cylinder. The control valve consists of a dump valve which releases hydraulic pressure into an accumulator, and an isolation valve which holds rear brake pressure. Operation of the dump valve and isolation valve is controlled by an Electronic Control Unit (ECU) which is mounted next to the master cylinder.

The ECU rec...

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