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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Chevrolet G20 VAN car and truck
repair procedures including Chevrolet 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 1990 Chevrolet G20 VAN automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1990 Chevrolet G20 VAN
- 1990 Chevrolet G20 VAN 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1990 Chevrolet G20 VAN 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
- 1990 Chevrolet G20 VAN 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
- 1990 Chevrolet G20 VAN 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
- 1990 Chevrolet G20 VAN Sportvan 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1990 Chevrolet G20 VAN Sportvan 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
- 1990 Chevrolet G20 VAN Sportvan 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
- 1990 Chevrolet G20 VAN Sportvan 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> SYSTEM SERVICE -> BLEEDING EHCU MODULE
Vehicle: 1990 Chevrolet G20 VAN 6.2 V8 DIESEL
BLEEDING EHCU MODULE
The EHCU Module should be bled after replacement or if trapped air is 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 module. The valves are used to open the internal passages within the EHCU module. Both bleed valves must be rotated 1/4-1/2 a turn counterclockwise before beginning t...
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BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Delco-Moraine Brake Boosters -> POWER BRAKE UNIT, Replace -> 1990-91 C & K SERIES -> ASTRO & SAFARI VAN -> CABALLERO & EL CAMINO -> FULL SIZE EXCEPT 1990-91 C & K SERIES -> LUMINA APV, SILHOUTTE & TRANS SPORT -> S/T 10 & 15 & BRAVADA
Vehicle: 1990 Chevrolet G20 VAN Sportvan 4.3 V6 GAS
CABALLERO & EL CAMINO
- Remove vacuum hose from check valve and master cylinder retaining nuts.
- Pull master cylinder forward so it clears mounting studs and move to one side. Support cylinder to avoid stress on hydraulic lines.
- Remove power unit to dash nuts.
- Remove brake pedal pushrod retainer and disconnect pushrod from pin.
- Remove power brake unit from vehicle.
- Reverse procedure to install.
ASTRO & SAFARI VAN
- 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.
- Rev...
CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G20 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Bendix Single Piston Sliding Caliper -> BRAKE PADS, Replace
Vehicle: 1990 Chevrolet G20 VAN Sportvan 6.2 V8 DIESEL
The procedures to remove & install the brake pads are outlined under "Caliper Service," "Remova... "
CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G20 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> WHEEL CYLINDER OVERHAUL
Vehicle: 1990 Chevrolet G20 VAN Sportvan 5.0 V8 GAS
- Raise and support vehicle.
- Remove wheel, drum and brake shoes.
- Disconnect hydraulic line at wheel cylinder. Do not pull metal line away from cylinder, as this may kink or bend line. Line will separate from cylinder when cylinder is moved away from brake backing plate.
- Remove wheel cylinder-to-brake plate attaching screws, then the wheel cylinder.
- Remove boots, pistons, springs and cups from cylinder, Fig. .
- Clean all parts with brake fluid.
- Inspect cylinder bore. A scored bore may be honed as long as the diameter is not increased by ...
CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G20 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> HEIGHT SENSING PROPORTIONING VALVE, Adjust
Vehicle: 1990 Chevrolet G20 VAN 5.7 V8 GAS
The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be checked if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.
- Raise and support vehicle leaving wheels on, and allow axle to hang free (no load condition).
- Remove lever retaining nut and disconnect lever from valve shaft, Fig. .
- Rotate valve shaft to permit installation of correct adjustment gauge, Fig. ,...
CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G20 VAN BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G20 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Chevrolet G20 VAN cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> HEIGHT SENSING PROPORTIONING VALVE, Adjust
Vehicle: 1990 Chevrolet G20 VAN Sportvan 5.7 V8 GAS
The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be checked if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.
- Raise and support vehicle leaving wheels on, and allow axle to hang free (no load condition).
- Remove lever retaining nut and disconnect lever from valve shaft, Fig. .
- Rotate valve shaft to permit installation of correct adjustment gauge, Fig. ,...
CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G20 VAN BRAKE SERVICE PROCEDURES
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