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1990 GEO Prizm CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GEO 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 1990 GEO Prizm car and truck repair procedures including GEO 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 GEO Prizm 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 GEO mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1990 GEO Prizm 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 1990 GEO Prizm AUTOMOBILES

A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-95 Geo Prizm
Vehicle: 1990 GEO Prizm GSI 1.6 L4 GAS

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BRAKE SERVICE PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

DISC BRAKES, GENERAL MOTORS -> Toyota/GM Single Piston Caliper -> FRONT CALIPER OVERHAUL -> ASSEMBLY -> DISASSEMBLY
Vehicle: 1990 GEO Prizm LSI 1.6 L4 GAS

DISASSEMBLY
  • Remove 2 caliper slide bushings, 4 dust boots and spacer collars, Fig. .
  • Pry out caliper dust boot retaining ring and remove dust boot.
  • Place clean shop towels in caliper web to protect piston, then apply compressed air to caliper fluid inlet to force piston from bore. Keep fingers clear of caliper web when removing piston. Use only enough air pressure to ease piston out of bore, or piston may be damaged.
  • Remove piston seal from caliper bore, taking care not to mar machined surface of caliper.
  • Remove bleeder valve.
  • Clean components with alcohol and wipe dry with cl...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

General Motors Corp./Saturn Passenger Cars -> Fuel Pressure Relief -> 1988-92 Nova, Prizm & Vibe
Vehicle: 1990 GEO Prizm GSI 1.6 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 disco...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1990 GEO Prizm GSI 1.6 L4 GAS

  • Disconnect battery ground cable.
  • Raise and support vehicle.
  • Drain transaxle fluid.
  • Remove hub nut cap, then cotter pin, hub nut and washer.
  • Remove tie rod end from steering knuckle.
  • Remove brake caliper from steering knuckle.
  • Disconnect control arm from steering knuckle.
  • Remove brake rotor.
  • Remove drive axle from hub assembly using a plastic hammer. If shaft is difficult to remove, use crankshaft gear puller (Tool No. J 25287) or equivalent.
  • R...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

Starter, Replace
Vehicle: 1990 GEO Prizm GSI 1.6 L4 GAS

  • Disconnect battery ground cable.
  • Remove rear cooling fan.
  • Raise and support vehicle.
  • Remove right and left splash shields.
  • Disconnect oxygen sensor connector.
  • Disconnect f...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

General Motors Corp./Saturn Cars -> Check Engine Or Service Now Soon Engine Indicator Lamps (Gasoline Engines w/Electronic Engine Controls Or EFI) -> Prizm
Vehicle: 1990 GEO Prizm GSI 1.6 L4 GAS

The Check Engine lamp should light when the ignition is in the on position with engine not operating. When engine is started, the Check Engine lamp should go off. If lamp remains on, a code has been stored by the Electronic Control Unit (ECU) memory. After diagnosis and repair, turn ignition Off, then clear codes stored in the ECU memory by removing the Stop Fuse. The Stop fuse is located in a fuse panel, in the passenger compartment, on driver's side, behind kick panel. The fuse must be removed for 10 seconds or longer, depending on ambient temperature. The lower the ambient temperat...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 GEO Prizm LSI 1.6 L4 GAS

Lower

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

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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 GEO Prizm AUTOMOBILES

Serpentine Drive Belt, Replace -> Installation -> Removal
Vehicle: 1990 GEO Prizm GSI 1.6 L4 GAS

Removal

  • Rotate serpentine belt tensioner pulley clockwise to release tension from belt using a 3/8 drive socket wrench.
  • Remove serpentine belt from pulleys.

Installation

  • ...

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COMPONENT LOCATION DIAGRAMS FOR 1990 GEO Prizm AUTOMOBILES

Component location diagrams for most 1990 GEO Prizm cars and light trucks sold in the U.S. from 1990+.

Engine Compartment Component Locations  Diagram for 1990 GEO Prizm GSI 1.6 L4 GASEngine Compartment Component Locations Diagram for 1990 GEO Prizm GSI 1.6 L4 GAS

Components on diagram:
  • Cooling Fan Relay
  • Vehicle Speed Sensor
  • Throttle Position Sensor
  • Manifold Absolute Pressure Sensor
  • Ignition Coil
  • Harness & Connector Locations  Diagram for 1990 GEO Prizm GSI 1.6 L4 GASHarness & Connector Locations Diagram for 1990 GEO Prizm GSI 1.6 L4 GAS

    Components on diagram:
  • Junction Block 2
  • Junction Block 1
  • Junction Block 3
  • Junction Block 4
  • Junction Block 5
  • CLICK HERE TO GET FULL ACCESS TO 1990 GEO Prizm PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1990 GEO Prizm AUTOMOBILES

    OEM drawn wiring diagrams for most 1990 GEO Prizm cars and light trucks sold in the U.S.

    1990 GEO Prizm LSI 1.6 L4 GAS Wiring Diagram1990 GEO Prizm LSI 1.6 L4 GAS Wiring Diagram

    Components on diagram:
  • Front Wiper Motor
  • Washer Fluid Pump
  • 1990 GEO Prizm GSI 1.6 L4 GAS Wiring Diagram1990 GEO Prizm GSI 1.6 L4 GAS Wiring Diagram

    Components on diagram:
  • Rear Wiper Motor
  • Rear Wiper Washer Switch
  • Washer Fluid Pump
  • CLICK HERE TO GET FULL ACCESS TO 1990 GEO Prizm WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1990 GEO Prizm AUTOMOBILES

    OEM TSB listings for most 1990 GEO Prizm cars and light trucks sold in the U.S. from 1985+.

    Document: INFORMATION ON USE OF DIAGNOSTIC WORKSHEET - REVISED
    Vehicle: 1990 GEO Prizm LSI 1.6 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: INFORMATION ON PROPER TIRE PRESSURE - REVISED
    Vehicle: 1990 GEO Prizm LSI 1.6 L4 GAS

    Auto Systems:
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1990 GEO Prizm TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1990 GEO Prizm AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 GEO Prizm 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 1990 GEO Prizm 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 1990 GEO Prizm 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 1990 GEO Prizm 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 1990 GEO Prizm SPECIFICATIONS DATA!

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

    Click here to view more details1997 GEO Prizm Tail Light, Driver Side, Red plastic lens; DOT and SAE approved; AutoTrust Gold products are guaranteed to meet or exceed the original manufacturer's standards and quality; <b>Backed by a 5-year limited warranty</b>; If the part breaks or is damaged - even if you are involved in a wreck or accident - anytime within 5 years from purchase, simply cover shipping and handling and we will send you a new part..

    Source: Auto Body Parts Store

    $59.71

    Click here to view more details about 1997 GEO Prizm Oxygen Sensor, Front, Passenger Side1997 GEO Prizm Oxygen Sensor, Front, Passenger Side.

    Source: Auto Body Parts Store

    $29.01

    Click here to view more details1997 GEO Prizm 15" x 4" Steel Wheel, Steel Wheel; 15 X 4; Spare; 4 Lug; 100MM BP; Ident 94852729; Black, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $69.50

    Click here to view more details1997 GEO Prizm Lsi L4, 1.6 L, 1588 CC, 98 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

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    Click here to view more details1993 Geo Prizm Used Windshield Glass, \NEW AFT FW725, MYG, AFTERMARKET.

    Source: Used Auto Parts Store

    $122.00

    Click here to view more details1993 Geo Prizm Used Rear Lower Control Arm, Driver Side, 1.8, AUTO, FWD Locating Arms; fwd, Very Good.

    Source: Used Auto Parts Store

    $75.00
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