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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+.

DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston Caliper -> DESCRIPTION
Vehicle: 1991 GMC K1500 Pickup Sierra 4.3 V6 GAS

The caliper assembly, Fig. , slides on its mounting surfaces. Upon brake application, hydraulic pressure against the piston forces the inboard pad against the inboar...

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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+.

POWER BRAKE UNITS, GENERAL MOTORS -> Tracker Brake Booster -> IN-VEHICLE SERVICE -> BOOSTER PISTON ROD ADJUSTMENT
Vehicle: 1991 GMC K1500 Pickup Sierra 4.3 V6 GAS

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 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+.

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 GMC K1500 Pickup Sierra 6.2 V8 DIESEL

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 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 SERVICE -> Assemble -> BENDIX TYPE -> CAST IRON TYPE -> COMPOSITE TYPE -> DELCO MORAINE TYPE -> Disassemble -> Inspection -> TRACKER MODELS
Vehicle: 1991 GMC K1500 Pickup Sierra XC 4.3 V6 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 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 -> General Information -> SERVICE PRECAUTIONS -> BLEEDING DISC BRAKES -> BRAKE DISC SERVICE -> BRAKE LINES & LININGS -> BRAKE ROUGHNESS -> GENERAL PRECAUTIONS -> INSPECTION OF CALIPER
Vehicle: 1991 GMC K1500 Pickup Sierra XC 4.3 V6 GAS

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...

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 -> HEIGHT SENSING PROPORTIONING VALVE, Adjust
Vehicle: 1991 GMC K1500 Pickup Sierra XC 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 1991 GMC K1500 Pickup BRAKE SERVICE PROCEDURES

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Click here to view more details about 2001 GMC Jimmy Radiator Support2001 GMC Jimmy Radiator Support, A high quality, OE replacement radiator support assembly; Backed by 1-year, unlimited-mileage warranty..

Source: Auto Body Parts Store

$107.93

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Source: Auto Body Parts Store

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Click here to view more details2009 GMC Envoy Pillar Post Covers, PILLAR POST COVERS, 6 PIECE SET , , .

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$44.76

Click here to view more details1998 GMC K1500 Pickup Sierra XC V8, 6.5 L, 395 CID Rebuilt Engine, Warranty: 7-Year/70,000 Mile, .

Source: Rebuilt Engines Store

$6,365.00

Click here to view more details1988 GMC K1500 Pickup Used Radio, AM-mono-FM-stereo, Very Good.

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$78.00

Click here to view more details1999 GMC K1500 Pickup Used Distributor, 5.7, AUTO, 4X4 8-350 (5.7L), Very Good.

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$108.00
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