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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 GMC K1500 Pickup car and truck repair procedures including GMC 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 GMC K1500 Pickup automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 1991 GMC K1500 Pickup

  • 1991 GMC K1500 Pickup Sierra 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
  • 1991 GMC K1500 Pickup Sierra 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
  • 1991 GMC K1500 Pickup Sierra 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1991 GMC K1500 Pickup Sierra 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
  • 1991 GMC K1500 Pickup Sierra XC 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
  • 1991 GMC K1500 Pickup Sierra XC 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
  • 1991 GMC K1500 Pickup Sierra XC 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1991 GMC K1500 Pickup Sierra XC 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

DRUM BRAKES, GENERAL MOTORS -> Drum Brake Service -> Adjustments -> 1990-91 CHEVROLET & GMC C & K SERIES -> AUTOMATIC APPLY PARKING BRAKES -> CABALLERO & EL CAMINO -> CHEVROLET & GMC FULL SIZE TRUCKS & VANS EXCEPT 1990-91 C & K SERIES -> CHEVROLET ASTRO VAN & GMC SAFARI VAN -> CHEVROLET S/T 10 & GMC S/T 15, OLDSMOBILE BRAVADA -> CONTROL ROD, ADJUST -> Duo-Servo Brakes -> Lever Type -> LUMINA (APV), SILHOUETTE & TRANS SPORT -> MANUAL PARKING BRAKES -> Non-Servo Brakes -> Pedal Type -> Propeller Shaft Type -> SERIES 10-30/1500-3500 -> SERVICE BRAKES -> TRACKER
Vehicle: 1991 GMC K1500 Pickup Sierra XC 5.0 V8 GAS

SERVICE BRAKES

These brakes have self-adjusting shoe mechanisms that assure correct lining-to-drum clearances at all times. The automatic adjusters operate only when the brakes are applied as the vehicle is moving rearward or when the car comes to an uphill stop.

Although the brakes are self-adjusting, an initial adjustment is necessary after the brake shoes have been relined or replaced, or when the length of the adjusting screw has been changed during some other service operation. Refer to "Installation" for this procedure.

Frequent usage of an automatic transmission forward range to h...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> MASTER CYLINDER, Replace
Vehicle: 1991 GMC K1500 Pickup Sierra XC 6.2 V8 DIESEL

  • On vehicles w/manual brakes, disconnect master cylinder push rod from brake pedal.
  • On all models, disconnect all wire connectors from mas...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> MASTER CYLINDER, Replace
Vehicle: 1991 GMC K1500 Pickup Sierra XC 4.3 V6 GAS

  • On vehicles w/manual brakes, disconnect master cylinder push rod from brake pedal.
  • On all models, disconnect all wire connectors from mas...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> DIAGNOSIS & TESTING -> CLEARING CODES -> DIAGNOSTIC CIRCUIT CHECK -> DIAGNOSTIC TESTS -> READING CODES -> WIRING DIAGRAMS
Vehicle: 1991 GMC K1500 Pickup Sierra 5.7 V8 GAS

WIRING DIAGRAMS

Refer to "Wiring Diagrams" in "Vehicle Systems."

DIAGNOSTIC CIRCUIT CHECK

Refer to Figs. and for diagnostic circuit checks.

READING CODES

Trouble codes may be read with the TECH 1 scanner or by jumping terminal "H " of the ALDL to terminal "A" of the ALDL while observing the flashing of the "Anti-Lock" warning lamp. The terminals must be jumped for a few seconds before the code will begin.""

DIAGNOSTIC TESTS

[[table data]]

CLEARING CODES

If the "Anti-Lock" warning lamp stays lit, the codes may be cleared with the TECH 1 scanner or by the following procedu...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

DISC BRAKES, GENERAL MOTORS -> Bendix Single Piston Sliding Caliper -> CALIPER SERVICE -> ASSEMBLE -> DISASSEMBLE -> INSTALLATION -> REMOVAL
Vehicle: 1991 GMC K1500 Pickup Sierra 4.3 V6 GAS

REMOVAL

  • Siphon two-thirds of brake fluid from master cylinder reservoir serving front disc brakes.
  • Raise vehicle, support on jack stands and remove front wheels.
  • Bottom the caliper piston in bore. Insert a screwdriver between inboard shoe and piston, then pry piston back into bore. The piston can also be bottomed in the bore with a large C-clamp, Fig. .
  • Remove support key retaining screw.
  • Drive caliper support key and spring from steering knuckle with a suitable drift and hammer, Fig. .
  • Lift caliper from anchor plate and off rotor, Fig. . Hang caliper from coil spring with wire. Do n...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1991 GMC K1500 Pickup AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1991 GMC K1500 Pickup cars and light trucks from 1990+.

ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> TROUBLESHOOTING
Vehicle: 1991 GMC K1500 Pickup Sierra XC 4.3 V6 GAS

Refer to Figs. throug...

CLICK HERE TO GET FULL ACCESS TO 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

Shop online for auto body parts, engines, wheels, lights...

Click here to view more details about 2002 GMC Yukon Door Handle, Front, Driver Side2002 GMC Yukon Door Handle, Front, Driver Side, With door lock button; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

Source: Auto Body Parts Store

$25.72

Click here to view more details2002 GMC Sierra 2500 HD Step Bumper, Includes brackets, step pads, and mounting hardware; With holes for license light and license plate; Ensures precise and perfect fit for a reliable and efficient performance; Adds unique and distinctive styling that gives your vehicle a custom look; With 2 years limited TrustBuilt warranty..

Source: Auto Body Parts Store

$526.25

Click here to view more details2010 GMC Van Savana 16" x 6.5" Steel Wheel, Steel Wheel; 16 X 6.5; Solid Disc; 8 Lug; 6.5 Inch BP; Ident 9595400; Black, , .

Source: Wheels / Rims, Mirrors & Lights Store

$65.50

Click here to view more details about 1993 GMC K1500 Pickup Sierra XC V6, 4.3 L, 262 CID Rebuilt Engine1993 GMC K1500 Pickup Sierra XC V6, 4.3 L, 262 CID Rebuilt Engine, Fuel injected, roller cam, no balance shaft, Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,251.00

Click here to view more details1996 GMC K1500 Pickup Used Exhaust Manifold, 8-350 (5.7L), Without AIR; L., Very Good.

Source: Used Auto Parts Store

$72.00

Click here to view more details1992 GMC K1500 Pickup Used Ignition Switch W/Key, W/KEY, Very Good.

Source: Used Auto Parts Store

$61.00
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