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1991 Saturn SC Series CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Saturn 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 Saturn SC Series car and truck repair procedures including Saturn 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 Saturn SC Series 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 Saturn 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 Saturn SC Series 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 Saturn SC Series AUTOMOBILES

    A/C & Cooling System Maintenance -> General Motors Corp. -> 1991-2002 Saturn
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    SATURN -> Disc Brakes -> ADJUSTMENTS -> PARKING BRAKE
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    PARKING BRAKE

    • Remove console assembly.
    • On models equipped with automatic transaxle, tape shift lever handle button inward.
    • On models equipped with manual transaxle, remove shifter knob.
    • On all models, remove rear storage tray liner, then remove two screws.
    • Remove two screws at front of console.
    • Apply parking brake, then remove plate below parking brake lever by lifting at rear edge and lifting upward evenly.
    • Remove both ash trays.
    • Disconnect console front ash tray light.
    • On models equipped with power windows, remove window/lock/mirror switch by lifting edge, slide rearward, then remove retai...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    General Motors Corp./Saturn Passenger Cars -> Fuel Filter Replacement -> Except Aveo, Chevette 1.8L Diesel, Corvette, GTO, LaCrosse, Malibu (2004-06) & Malibu Maxx, Vibe, XLR, 2004-05 Corvette & 1998-2002 Metro & Prizm
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

    After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the v...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    CV AXLE SHAFT, Replace
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    • Depress brake pedal and loosen drive axle nut.
    • Raise and support vehicle, then remove front wheel and tire assembly and front inner splash shield. If left drive axle or intermediate shaft is being removed, drain fluid from transaxle.
    • Remove drive axle nut and washer.
    • Remove and discard lower control arm to steering knuckle cotter pin.
    • Loosen lower control arm to steering knuckle castle nut to the point where top of castle nut is even with top of ball stud. Do not remove castle nut at this time.
    • Separate lower control arm from steering knuckle, using removal tool No. SA9132S or...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    Alternator, Replace
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • Remove passenger side tire and wheel.
    • Remove splash guards.
    • Working through passenger side wheel well, release tension on drive belt and remove drive belt.
    • Disconnect electrical conn...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    General Motors Corp./Saturn Cars -> Check Engine Or Service Now Soon Engine Indicator Lamps (Gasoline Engines w/Electronic Engine Controls Or EFI) -> Except LeMans, Metro, Prizm, Storm & Vibe
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    The Check Engine lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a fault condition and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM memory can be cleared of codes as follows:

    On models except Cadillac with DEFI, remove the ECM/PCM fuse or disconnect the battery ground cable for approximately 30...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    Heater Hose, Replace -> Inlet -> Outlet
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    Inlet

    • Drain coolant into a suitable container.
    • Loosen hose clamp connecting hose to heater core inlet tube.
    • Loosen hose clamp connecting hose to water pump bypass tube.
    • Remove hose from vehicle.
    • Reverse procedure t...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Saturn SC Series AUTOMOBILES

    Serpentine Drive Belt, Replace -> Installation -> Removal
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    Removal

    • Depress tensioner arm, using suitable 14mm or 9/16 inch wrench.
    • Remove belt from A/C compressor and idler pulley, then remove belt.

    Installation

    • Route belt over a...

    CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1991 Saturn SC Series AUTOMOBILES

    Component location diagrams for most 1991 Saturn SC Series cars and light trucks sold in the U.S. from 1990+.

    Ignition Switch Diagram for 1991 Saturn SC Series  1.9 L4 GASIgnition Switch Diagram for 1991 Saturn SC Series 1.9 L4 GAS

    Components on diagram:
  • Ignition Switch
  • Clutch Start Switch
  • Passive Restraint Control Module
  • Neutral Start Switch
  • I/P Junction Block
  • Engine Sensors Diagram for 1991 Saturn SC Series  1.9 L4 GASEngine Sensors Diagram for 1991 Saturn SC Series 1.9 L4 GAS

    Components on diagram:
  • Vehicle Speed Sensor
  • Canister Purge Solenoid
  • Oxygen Sensor
  • Power Steering Pressure Switch
  • Oil Pressure Sender/Switch
  • CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Saturn SC Series AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Saturn SC Series cars and light trucks sold in the U.S.

    1991 Saturn SC Series  1.9 L4 GAS Wiring Diagram1991 Saturn SC Series 1.9 L4 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor
  • Manifold Absolute Pressure Sensor
  • Canister Purge Solenoid
  • Oxygen Sensor
  • Oil Pressure Switch
  • 1991 Saturn SC Series  1.9 L4 GAS Wiring Diagram1991 Saturn SC Series 1.9 L4 GAS Wiring Diagram

    Components on diagram:
  • Ignition Switch
  • PCM
  • Crank Position Sensor
  • Distributorless Ignition System Module & Coil
  • CLICK HERE TO GET FULL ACCESS TO 1991 Saturn SC Series WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Saturn SC Series AUTOMOBILES

    OEM TSB listings for most 1991 Saturn SC Series cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 Saturn SC Series 1.9 L4 GAS

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

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Saturn SC Series AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Saturn SC Series 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 Saturn SC Series 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 Saturn SC Series 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 Saturn SC Series 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 Saturn SC Series SPECIFICATIONS DATA!

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