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1991 Chevrolet S10 Pickup CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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    Get Full Access 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 Chevrolet S10 Pickup automobile. Try the Automotix DIY solution today!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    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 S10 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 S10 Pickup AUTOMOBILES

    A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet & GMC S & T Series & Oldsmobile Bravada
    Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    DRUM BRAKES, GENERAL MOTORS -> Drum Brake Service -> Removal -> 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 2.8 V6 GAS

    EXCEPT TRACKER & 1990-91 C & K SERIES w/NON-SERVO BRAKES

    • Raise and support vehicle, then remove tire and wheel assembly.
    • Remove brake drum. If brake lining is dragging on brake drum, back off brake adjustment by rotating adjustment screw. Refer to individual truck chapter for procedure. If brake drum is rusted or corroded to axle flange and cannot be removed, lightly tap flange to drum mounting surface with a suitable hammer.
    • Using brake spring pliers or equivalent, unhook primary and secondary return springs, Figs. through . Observe location of brake parts being removed to aid during ins...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
    Vehicle: 1991 Chevrolet S10 Pickup 2.8 V6 GAS

    Returnless Fuel System

    On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."

    On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Pri...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    DRIVESHAFT, Replace -> Front -> One Piece Driveshaft -> Rear -> Two Piece Driveshaft
    Vehicle: 1991 Chevrolet S10 Pickup 2.8 V6 GAS

    Front

    • Raise and support vehicle.
    • Mark the front U-joint to the pinion yoke on the front differential.
    • Mark the relationship of the rear U-joint to the transfer case drive flange.
    • Remove the retaining nuts and bolts from the drive flange.
    • Remove the clamps and retaining bolts from the front drive axle pinion flange.
    • Remove the front propeller shaft from the vehicle.
    • Using tape and or a rubber band, wrap the front U-joint bearing caps to ensure the caps do not separate from the U-joint.
    • Reverse procedure to install, noting the following:
      • Torque front propeller shaft flange to front axl...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    Starter, Replace
    Vehicle: 1991 Chevrolet S10 Pickup 4.3 V6 GAS

    Upon removal of starter, note if any shims are used. If shims are used, they should be installed in their original locations. After installation, if starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to outer bolt. If starter makes a high pitched whine after firing, add .015 inch double shims until noise ceases.

    • Disconnect battery ground cable.
    • Raise and support front of vehicle.
    • Raise vehicle half way to gain access to starter motor.
    • Re...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    General Motors Corp./Saturn Trucks -> Reduce Engine Power Indicator Lamp ->
    Vehicle: 1991 Chevrolet S10 Pickup 4.3 V6 GAS

    The Reduce Engine Power indicator lamp should light for a approximately 3 seconds when the ignition is turned On as a bulb check. If the warning lamp turns On during vehicle operation, a vehicl...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    Heater Hose, Replace -> Inlet -> Outlet
    Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 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 cylinder head.
    • Remove inlet heater hose from cylinder head.
    • Remove hose from vehicle.
    • Reverse procedu...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS

    • Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...

    CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    Component location diagrams for most 1991 Chevrolet S10 Pickup cars and light trucks sold in the U.S. from 1990+.

    Rear Of Instrument Cluster Diagram for 1991 Chevrolet S10 Pickup  2.5 L4 GASRear Of Instrument Cluster Diagram for 1991 Chevrolet S10 Pickup 2.5 L4 GAS

    Components on diagram:
  • Park Brake Switch
  • Convenience Center
  • Clutch Start Switch
  • Anti-Lock Brake Components Diagram for 1991 Chevrolet S10 Pickup  2.8 V6 GASAnti-Lock Brake Components Diagram for 1991 Chevrolet S10 Pickup 2.8 V6 GAS

    Components on diagram:
  • Brake Pressure Warning Switch
  • Proportioning Valve
  • Brake Proportioning Valve
  • Rear-Wheel Antilock Brake Module
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Chevrolet S10 Pickup cars and light trucks sold in the U.S.

    1991 Chevrolet S10 Pickup  2.5 L4 GAS Wiring Diagram1991 Chevrolet S10 Pickup 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Rear Defogger
  • Clock
  • Power Windows
  • Power Door Lock
  • Rear Wiper And Washer
  • 1991 Chevrolet S10 Pickup  4.3 V6 GAS Wiring Diagram1991 Chevrolet S10 Pickup 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Front Axle Switch
  • 4 Wheel Drive Indicator
  • Selector Quadrant Switch
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    OEM TSB listings for most 1991 Chevrolet S10 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 S10 Pickup 2.5 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 Chevrolet S10 Pickup 2.5 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet S10 Pickup TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Chevrolet S10 Pickup AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Chevrolet S10 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 S10 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 S10 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 S10 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 S10 Pickup SPECIFICATIONS DATA!

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