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We have info for following modifications of 1991 Chevrolet G30 VAN
- 1991 Chevrolet G30 VAN 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1991 Chevrolet G30 VAN 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:J
- 1991 Chevrolet G30 VAN 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
- 1991 Chevrolet G30 VAN 7.4 V8 GAS, CID:454, Fuel Injection, Aspiration:454, Engine VIN:, Desg:N
- 1991 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:J
- 1991 Chevrolet G30 VAN Sportvan 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
- 1991 Chevrolet G30 VAN Sportvan 7.4 V8 GAS, CID:454, Fuel Injection, Aspiration:454, Engine VIN:, Desg:N
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> SERVICE PRECAUTIONS -> BLEEDING DISC BRAKES -> BRAKE DISC SERVICE -> BRAKE LINES & LININGS -> BRAKE ROUGHNESS -> GENERAL PRECAUTIONS -> INSPECTION OF CALIPER
Vehicle: 1991 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL
BRAKE LINES & LININGS
Remove one of the front wheels and inspect the brake disc, caliper and linings.
Do not get any oil or grease on the linings. It is recommended that all linings be replaced in sets when worn or damaged.
If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.
BRAKE ROUGHNESS
The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive t...
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BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> MASTER CYLINDER SERVICE -> Assemble -> BENDIX TYPE -> CAST IRON TYPE -> COMPOSITE TYPE -> DELCO MORAINE TYPE -> Disassemble -> Inspection -> TRACKER MODELS
Vehicle: 1991 Chevrolet G30 VAN Sportvan 7.4 V8 GAS
DELCO MORAINE TYPE
COMPOSITE TYPE
Refer to Figs. and when performing the following procedures.
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 proportioner valve assembly, if equipped.
- Depress primary piston and remove lock ring.
- Plug primary fluid outlet (outlet nearest to cowl when master cylinder is installed), then apply compressed air into secondary fluid outlet to remove primary and secondary pistons.
- R...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet G30 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston Caliper -> BRAKE PAD, Replace -> INSTALLATION -> REMOVAL
Vehicle: 1991 Chevrolet G30 VAN 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 1991 Chevrolet G30 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Drum Brake Service -> Inspection
Vehicle: 1991 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL
- 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 1991 Chevrolet G30 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> BOOSTER SERVICE -> ASSEMBLE -> DISASSEMBLE
Vehicle: 1991 Chevrolet G30 VAN Sportvan 5.7 V8 GAS
DISASSEMBLE
- Remove pushrod clevis and locknut.
- Install brake booster to brake mounting fixture, Fig. . Ensure booster vacuum pipe is clear of mounting fixture base and the booster mounting nuts are not over tightened.
- Turn fixture handle until No. 1 and No. 2 body tabs are aligned, Fig. .
- Remove booster from fixture, then separate body No. 1 and No. 2. This step must be performed with care because there is spring pressure between body No. 1 and No. 2.
- Remove booster piston spring, piston rod, boot, air cleaner and air cleaner separator from body No. 2.
- Remove valve stopper key cush...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet G30 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet G30 VAN cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Drum Brake Service -> Inspection
Vehicle: 1991 Chevrolet G30 VAN 5.7 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 1991 Chevrolet G30 VAN BRAKE SERVICE PROCEDURES
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