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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Chevrolet S10 Pickup 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 1991 Chevrolet S10 Pickup automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1991 Chevrolet S10 Pickup
- 1991 Chevrolet S10 Pickup 2.5 L4 GAS, CC:2474, CID:151, Fuel Injection, Aspiration:151, Engine VIN:, Desg:E
- 1991 Chevrolet S10 Pickup 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
- 1991 Chevrolet S10 Pickup 2.8 V6 GAS, CID:173, Fuel Injection, Aspiration:173, Engine VIN:, Desg:R
- 1991 Chevrolet S10 Pickup 2.5 L4 GAS, CC:2474, CID:151, Fuel Injection, Aspiration:151, Engine VIN:, Desg:A
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> DESCRIPTION
Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS
This unit, Fig. , uses a single vacuum diaphragm with an effective diameter of 7 inches to mechanically increase brake application force with engine vacuum...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> COMPONENT REPLACEMENT -> EHCU MODULE -> FRONT WHEEL SPEED SENSOR -> REAR WHEEL SPEED SENSOR
Vehicle: 1991 Chevrolet S10 Pickup 2.8 V6 GAS
EHCU MODULE
The EHCU module is not serviceable and must be replaced as a unit. Refer to Fig. when replacing the unit.
- Bleed brake booster by depressing brake pedal several times.
- Remove washer tank attaching bolts, then position aside.
- Remove EHCU electrical connectors.
- Disconnect module brake lines. Use caution not to get brake fluid on paint or electrical connections.
- Remove upper to lower bracket assembly attaching bolts.
- Remove EHCU module and upper bracket assembly from vehicle.
- Remove upper mounting bracket to EHCU module attaching bolts.
- Reverse procedure to install, noting...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston Caliper -> BRAKE PAD, Replace -> INSTALLATION -> REMOVAL
Vehicle: 1991 Chevrolet S10 Pickup 2.8 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...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> COMPONENT REPLACEMENT -> EHCU MODULE -> FRONT WHEEL SPEED SENSOR -> REAR WHEEL SPEED SENSOR
Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS
EHCU MODULE
The EHCU module is not serviceable and must be replaced as a unit. Refer to Fig. when replacing the unit.
- Bleed brake booster by depressing brake pedal several times.
- Remove washer tank attaching bolts, then position aside.
- Remove EHCU electrical connectors.
- Disconnect module brake lines. Use caution not to get brake fluid on paint or electrical connections.
- Remove upper to lower bracket assembly attaching bolts.
- Remove EHCU module and upper bracket assembly from vehicle.
- Remove upper mounting bracket to EHCU module attaching bolts.
- Reverse procedure to install, noting...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> Drum Brake Service -> Installation -> 1990-91 C & K SERIES w/NON-SERVO BRAKES -> EXCEPT TRACKER, 1990-91 C & K SERIES w/NON-SERVO BRAKES -> TRACKER
Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS
EXCEPT TRACKER, 1990-91 C & K SERIES w/NON-SERVO BRAKES
- Lubricate parking brake lever fulcrum with suitable brake lube, then attach lever to brake shoe. Ensure lever operates smoothly.
- Connect brake shoes with adjusting screw spring, then position adjusting screw. Ensure adjusting screw star wheel does not contact adjusting screw spring after installation, and also ensure RH thread adjusting screw is installed on left side of vehicle and LH thread adjusting screw is installed on right side of vehicle. When brake shoe installation is completed, ensure star wheel lines up with adjustin...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet S10 Pickup cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Delco-Moraine Brake Boosters -> TROUBLESHOOTING -> BRAKES GRAB -> HARD PEDAL -> SLOW OR NO RELEASE
Vehicle: 1991 Chevrolet S10 Pickup 2.8 V6 GAS
HARD PEDAL
- Internal vacuum leak.
- Faulty control valve.
- Broken or damaged hydraulic brake lines.
- Collapsed or damaged vacuum hose.
- Plugged or loose vacuum fitting.
- Bad stud welds on front or rear housing on power head.
- Faulty booster diaphragm.
- Restricted air filter element.
- Worn or distorted reaction plate or levers.
- Cracked or broken pow...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES
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