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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1994 GMC G25/G2500 VAN car and truck
repair procedures including GMC engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
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We have info for following modifications of 1994 GMC G25/G2500 VAN
- 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1994 GMC G25/G2500 VAN Rally 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
- 1994 GMC G25/G2500 VAN Rally 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
- 1994 GMC G25/G2500 VAN Rally 6.5 V8 DIESEL, CID:395, Fuel Injection, Aspiration:395, Engine VIN:, Desg:P
- 1994 GMC G25/G2500 VAN Vandura 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1994 GMC G25/G2500 VAN Vandura 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
- 1994 GMC G25/G2500 VAN Vandura 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
- 1994 GMC G25/G2500 VAN Vandura 6.5 V8 DIESEL, CID:395, Fuel Injection, Aspiration:395, Engine VIN:, Desg:P
BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN cars and light trucks from 1990+.
Disc Brakes -> Delco-Moraine Single Piston Caliper -> Brake Pad Service -> Installation -> Removal
Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 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 ...
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BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN cars and light trucks from 1990+.
Power Brake Units -> Bendix Brake Boosters -> Description
Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS
In order to properly service power brake systems, a thorough understanding of the power assist system is necessary. These systems provide a mechanical assist, acting to increase the force applied to the master cylinder piston by the driver while decreasing the effort necessary to obtain acceptable stopping performance.
Hydraulic assist units incorporate a basic open center spool valve, hydraulic cylinder and an accumulator assembly in a common housing. When the brake pedal is depressed, the hydraulic piston moves forward closing off fluid relief passages, the spool valve applies flui...
CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN 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: 1994 GMC G25/G2500 VAN Rally 5.0 V8 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 ...
CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN cars and light trucks from 1990+.
Drum Brakes -> Inspection
Vehicle: 1994 GMC G25/G2500 VAN Rally 5.0 V8 GAS
- Inspect components for damage or unusual wear. Replace as necessary.
- Inspect backing plate attaching bolts, and ensure they are tight.
- Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. A slight amount of fluid is always present and is considered normal, act...
CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN 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 G25/G2500 VAN Rally 6.5 V8 DIESEL
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 G25/G2500 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1994 GMC G25/G2500 VAN cars and light trucks from 1990+.
Power Brake Units -> Delco-Moraine Brake Boosters -> POWER BRAKE UNIT REPLACEMENT -> Astro & Safari -> C & K Series -> Full Size Except C & K Series -> Lumina APV, Silhouette & Trans Sport -> S/T Series & Bravada
Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS
Astro & Safari
- Disconnect master cylinder from power brake unit.
- Disconnect power brake unit pushrod from brake pedal.
- Remove power brake unit retaining nuts and the power brake unit.
- Reverse procedure to install.
Full Size Except C & K Series
- Remove master cylinder attaching nuts and position master cylinder aside. Do not disconnect brake lines from cylinder.
- Disconnect power brake unit pushrod from brake pedal.
- Remove attaching nuts, then the power brake unit.
- Reverse procedure to install.
S/T Series & Bravada
- Disconnect master cylinder assembly and vacuum hose from power br...
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