1991 Chevrolet C2500 Pickup REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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1991 Chevrolet C2500 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Chevrolet C2500 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 Chevrolet C2500 Pickup automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Chevrolet mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1991 Chevrolet C2500 Pickup vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-95 Chevrolet & GMC C & K, G, P & R & V Series
Vehicle: 1991 Chevrolet C2500 Pickup 4.3 V6 GAS

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BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

POWER BRAKE UNITS, GENERAL MOTORS -> Bendix Brake Boosters -> POWER BRAKE UNIT, Replace -> 1990-91 C & K SERIES -> ASTRO VAN & SAFARI VAN -> CABALLERO & EL CAMINO -> FULL SIZE EXCEPT 1990-91 C & K SERIES
Vehicle: 1991 Chevrolet C2500 Pickup 5.0 V8 GAS

CABALLERO & EL CAMINO

Pump brake pedal several times with engine off to deplete accumulator of fluid.

  • Remove two nuts attaching master cylinder to booster, then move master cylinder away from booster with brake lines attached.
  • Remove three hydraulic lines from booster. Plug and cap all lines and outlets.
  • Remove retainer and washer securing booster pushrod to brake pedal arm.
  • Remove four nuts attaching booster unit to dash panel.
  • From engine compartment, loosen booster from dash panel and move booster pushrod inboard until it disconnects from brake pedal arm. Remove spring wa...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> 1999-06 Escalade, Avalanche & Denali, 1988-03 & C/K Pickup (Except 1999-03 Sierra & Silverado), 1992-06 Blazer, Jimmy, Hummer H2, SSR, Suburban, Yukon XL, Tahoe, Yukon, Bravada Gasoline Engines & 2004-06 Rainier, TrailBlazer & Envoy
Vehicle: 1991 Chevrolet C2500 Pickup 4.3 V6 GAS

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

DRIVESHAFT, Replace -> Front -> Front, All Except NP8 Axle -> Front, NP8 Axle -> One Piece Driveshaft -> Rear -> Three Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1991 Chevrolet C2500 Pickup 6.2 V8 DIESEL

Front

Front, All Except NP8 Axle
  • Raise and support vehicle.
  • Remove front differential carrier shield, if used.
  • Reference mark relationship of propeller shaft to front axle and transfer case flange.
  • Remove bolts and retainers from front axle.
  • Remove bolts and retainers from transfer case.
  • Remove propeller shaft. When removing propeller shaft, do not attempt to remove shaft by pounding on yoke ears or using a tool between yoke and universal joint. If propeller shaft is removed by using such means, injection joints may fracture and lead to premature failure of joint.
  • Compress propeller...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

Starter, Replace
Vehicle: 1991 Chevrolet C2500 Pickup 6.2 V8 DIESEL

  • Disconnect battery ground cable.
  • Remove starter braces or heat shields, if equipped.
  • Disconnect starter solenoid electrical connectors.
  • Raise and support vehicle.
  • Remove at...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

General Motors Corp./Saturn Trucks -> Anti-Lock Brake System Warning Lamp ->
Vehicle: 1991 Chevrolet C2500 Pickup 5.0 V8 GAS

This lamp should light for approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warn...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1991 Chevrolet C2500 Pickup 4.3 V6 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Reposition hose clamp at heater core.
  • Remove inlet heater hose from heater core.
  • Reposition hose clamp at thermostat housing.
  • Remove inlet heater hose from thermostat housing.
  • Remove hose from vehicle.
  • Reverse proc...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1991 Chevrolet C2500 Pickup 5.7 V8 GAS

  • Rotate tensioner counterclockwise, using a 1/2 inch breaker bar with a socket placed on tensioner ...

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COMPONENT LOCATION DIAGRAMS FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

Component location diagrams for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. from 1990+.

Oxygen Sensor Diagram for 1991 Chevrolet C2500 Pickup  5.7 V8 GASOxygen Sensor Diagram for 1991 Chevrolet C2500 Pickup 5.7 V8 GAS

Components on diagram:
  • Connector C-116
  • Connector C116
  • Oxygen Sensor, Heated
  • Transmission Components Diagram for 1991 Chevrolet C2500 Pickup  7.4 V8 GASTransmission Components Diagram for 1991 Chevrolet C2500 Pickup 7.4 V8 GAS

    Components on diagram:
  • Output Speed Sensor
  • Input Speed Sensor
  • Connector C-116
  • Connector C-157
  • Connector C116
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C2500 Pickup PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S.

    1991 Chevrolet C2500 Pickup  6.2 V8 DIESEL Wiring Diagram1991 Chevrolet C2500 Pickup 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Light Switch
  • LH Tail, Stop, Turn Signal And Backup Lamp
  • RH Tail, Stop, Turn Signal And Backup Lamp
  • 1991 Chevrolet C2500 Pickup  5.0 V8 GAS Wiring Diagram1991 Chevrolet C2500 Pickup 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal Switch
  • Stop/TCC Switch
  • LH Tail, Stop, Turn Signal And Backup Lamp
  • RH Tail, Stop, Turn Signal And Backup Lamp
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C2500 Pickup WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

    OEM TSB listings for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1991 Chevrolet C2500 Pickup 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 Chevrolet C2500 Pickup 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C2500 Pickup TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Chevrolet C2500 Pickup AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. and Canada from 1970+.

    • Brake caliper mounting bolt torque
    • Brake drum runout, machining, & discard specs
    • Minimum brake lining thickness.
    • Brake rotor runout, parallelism, machining, discard, & finish specs

    A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. and Canada from 1980+.

    • Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

    COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

    PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

    QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

    • Automatic transmission/transaxles capacities, lubricant recommendations
    • Differential/final drive capacities, lube recommendations, grades, & viscosities
    • Final drive fill & drain plug torques
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
    • Severe service maintenance & interval recommendations
    • Tire sizes, wheel nut/bolt torque, pressures & rim sizes
    • Transfer case capacities, lube recommendations, grades, & viscosities

    TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1991 Chevrolet C2500 Pickup cars and light trucks sold in the U.S. and Canada from 1980+

    • Airflow sensor electrical specifications
    • Tensioning specifications for systems with automatic tensioners
    • Barometric pressure sensor specs
    • Battery group number and cranking performance
    • Crankshaft & camshaft position sensor resistance
    • Engine compression pressures
    • Coolant temperature sensor specs
    • Computer advance.
    • Diesel fuel temperature sensor resistance.
    • Distributor advance specifications
    • Ignition pickup coil resistance
    • Exhaust gas recirculation temperature sensor resistance
    • Engine fastener torque values
    • Firing order diagrams
    • Fuel system pressures
    • Generator (alternator) specs
    • Intake air temperature sensor specs
    • Ignition coil specifications
    • Fuel injector resistance
    • Engine idle speeds
    • Knock sensor resistance
    • Manifold absolute pressure sensor specs
    • Mixture control solenoid resistance
    • Voltage regulator specs
    • Spark plug applications & gaps
    • Starter motor electrical specs.
    • Tensioning specifications for systems without automatic tensioners
    • Throttle body temperature sensor resistance
    • Ignition timing in degrees at rpm
    • Transmission oil temperature sensor resistance
    • Throttle position sensor specs
    • Vacuum sensor valve specs

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet C2500 Pickup SPECIFICATIONS DATA!

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