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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Chevrolet R1500 Suburban 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 R1500 Suburban automobile. Try the Automotix DIY solution today!
We have info for following modifications of 1991 Chevrolet R1500 Suburban
- 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
- 1991 Chevrolet R1500 Suburban 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> IN-VEHICLE SERVICE -> BOOSTER PISTON ROD ADJUSTMENT
Vehicle: 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL
BOOSTER PISTON ROD ADJUSTMENT
- Pump brake pedal several times, then remove master cylinder from brake booster.
- With gasket installed on master cylinder, install booster piston rod gauge tool No. J34873-A or equivalent on master...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet R1500 Suburban BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban cars and light trucks from 1990+.
DRUM BRAKES, GENERAL MOTORS -> General Information -> GENERAL INSPECTION -> ADJUSTER MECHANISM -> BACKING PLATE -> BRAKE DRUMS -> BRAKE LININGS & SPRINGS -> PARKING BRAKE CABLE
Vehicle: 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL
BRAKE DRUMS
Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out of round and heat spotting. If drums are cracked or heat spotted, they must be replaced. Gr...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet R1500 Suburban BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> WHEEL CYLINDER OVERHAUL
Vehicle: 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL
- 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 1991 Chevrolet R1500 Suburban BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban cars and light trucks from 1990+.
POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> DESCRIPTION
Vehicle: 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL
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 R1500 Suburban BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban cars and light trucks from 1990+.
DISC BRAKES, GENERAL MOTORS -> General Information -> TROUBLESHOOTING -> BRAKE RATTLE -> BRAKE ROUGHNESS OR CHATTER; PEDAL PUMPING -> CALIPER BRAKE FLUID LEAK -> EXCESSIVE PEDAL EFFORT -> EXCESSIVE PEDAL TRAVEL -> HEAVY BRAKE DRAG -> NO BRAKING EFFECT WHEN BRAKE PEDAL IS DEPRESSED -> PULL, UNEVEN OR GRABBING BRAKES -> REAR BRAKES LOCKING ON APPLICATION
Vehicle: 1991 Chevrolet R1500 Suburban 6.2 V8 DIESEL
EXCESSIVE PEDAL TRAVEL
- Worn brake linings.
- Disc pads knock back after cornering or rough road travel.
- Piston and linings not properly seated or positioned.
- Insufficient fluid in system.
- Loose wheel bearing adjustment.
- Damaged or worn caliper piston seal.
- Improper booster pushrod adjustment.
- Pads out of flat more than .005 inch.
- Rear brake automatic adjusters inoperative.
- Improperly ground rear brake shoes.
BRAKE ROUGHNESS OR CHATTER; PEDAL PUMPING
- Excessive lateral runout of rotor.
- Rotor excessively out of parallel.
EXCESSIVE PEDAL EFFORT
- Frozen or seized pistons.
- Brake fluid, oil or grease on ...
CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet R1500 Suburban BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 Chevrolet R1500 Suburban 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 R1500 Suburban 6.2 V8 DIESEL
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 R1500 Suburban BRAKE SERVICE PROCEDURES
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