1994 GMC K3500 Pickup Brake Service (ONLINE REPAIR MANUALS)

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We have info for following modifications of 1994 GMC K3500 Pickup

  • 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1994 GMC K3500 Pickup Sierra 7.4 V8 GAS, CID:454, Fuel Injection, Aspiration:454, Engine VIN:, Desg:N
  • 1994 GMC K3500 Pickup Sierra 6.5 V8 DIESEL, CID:395, Fuel Injection, Aspiration:395, Engine VIN:, Desg:F
  • 1994 GMC K3500 Pickup Sierra XC 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1994 GMC K3500 Pickup Sierra XC 7.4 V8 GAS, CID:454, Fuel Injection, Aspiration:454, Engine VIN:, Desg:N
  • 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL, CID:395, Fuel Injection, Aspiration:395, Engine VIN:, Desg:F

BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Anti-lock Brakes -> Four Wheel Anti-Lock Brake System -> Description -> Except S & T Series w/VCM & VCM-A -> S & T Series w/VCM & VCM-A
Vehicle: 1994 GMC K3500 Pickup Sierra XC 6.5 V8 DIESEL

Except S & T Series w/VCM & VCM-A

This braking system, Figs. through , is designed to reduce the occurrence of wheel lock-up during severe braking conditions. To accomplish this function, the system regulates hydraulic brake line pressure by using an Electro-Hydraulic Control Unit (EHCU) module or a Brake Pressure Modulator Valve (BPMV). The EHCU/BPMV module has two types of valves: isolation valves, which maintain separate pressure for each front wheel and combine pressure for the rear wheels, and dump valves, which "dump" pressure to each front wheel separately and rear wheels comb...

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BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Disc Brakes -> Delco-Moraine Single Piston Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 1994 GMC K3500 Pickup Sierra 5.7 V8 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...

CLICK HERE TO GET FULL ACCESS TO 1994 GMC K3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Disc Brakes -> Delco-Moraine Single Piston Caliper -> Brake Pad Service -> Installation -> Removal
Vehicle: 1994 GMC K3500 Pickup Sierra XC 7.4 V8 GAS

Removal

  • Remove caliper assembly as outlined above.
  • Remove inboard pad with retainer spring. Dislodge outboard pad and position caliper on the front suspension so the brake hose will not support the weight of the caliper.
  • Remove two sleeves from inboard ears of the caliper.
  • Remove four rubber bushings from the grooves in each of the caliper ears.

Installation

  • Lubricate new sleeves, rubber bushings, bushing grooves and mounting bolt ends with Delco Silicone Lube or equivalent.
  • Install new bushings and sleeves in caliper ears. Position the sleeve so that the end toward the pad is flush ...

CLICK HERE TO GET FULL ACCESS TO 1994 GMC K3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Hydraulic Brake Systems -> Component Service -> Assemble -> Bendix Master Cylinder -> Cast Iron Type -> Composite Type -> Delco-Moraine Master Cylinder -> Disassemble -> Inspection -> Tracker Master Cylinder -> Wheel Cylinder
Vehicle: 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS

Delco-Moraine Master Cylinder

Composite Type

When performing the following procedures, refer to Fig. for all models except Lumina APV, Silhouette & Trans Sport, noting that the composite reservoir may vary in design. Refer to Fig. for Lumina APV, Silhouette & Trans Sport models.

Disassemble
  • Remove master cylinder from vehicle.
  • 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 and proportioning valve assembly, if equipped.
  • Depress primary piston and remove lock ring.
  • P...

CLICK HERE TO GET FULL ACCESS TO 1994 GMC K3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Anti-lock Brakes -> ABS-VI Anti-Lock Brake System -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Interpretation -> Intermittents & Poor Connections
Vehicle: 1994 GMC K3500 Pickup Sierra XC 5.7 V8 GAS

Accessing Diagnostic Trouble Codes

This system has a sophisticated diagnosis system designed to identify any system fault as specifically as possible, including intermittent faults. There are many diagnostic trouble codes used by the system. Each input and output to the system can be monitored with a suitable bi-directional scan tool; monitoring inputs and outputs allows for fault confirmation and repair verification. The scan tool can also be used to manually control components and perform functional tests.

  • Connect a TECH 1 or equivalent scan tool to the diagnostic connector,...

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CLICK HERE TO GET FULL ACCESS TO 1994 GMC K3500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1994 GMC K3500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC K3500 Pickup cars and light trucks from 1990+.

Hydraulic Brake Systems -> Component Replacement -> Master Cylinder
Vehicle: 1994 GMC K3500 Pickup Sierra 5.7 V8 GAS

Master Cylinder

  • On models with manual brake system, disconnect master cylinder pushrod from brake pedal.
  • On all models, disconnect all wire connector...

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