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1990 GEO Metro 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!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> Chevrolet & Geo Metro
Vehicle: 1990 GEO Metro LSI 1.0 L3 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
DRUM BRAKES, GENERAL MOTORS -> General Information -> GENERAL INSPECTION -> ADJUSTER MECHANISM -> BACKING PLATE -> BRAKE DRUMS -> BRAKE LININGS & SPRINGS -> PARKING BRAKE CABLE
Vehicle: 1990 GEO Metro XFI 1.0 L3 GAS
BRAKE DRUMS
Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out of round and heat spotting. If drums are cracked or heat spotted, they must be replaced. Mi...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 GEO Metro 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: 1990 GEO Metro XFI 1.0 L3 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...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
CV AXLE SHAFT, Replace -> Drive axle -> Intermediate shaft
Vehicle: 1990 GEO Metro 1.0 L3 GAS
Drive axle
- Raise and support vehicle.
- On models with ABS, remove ABS wheel speed sensor.
- On all models, remove wheel and tire assembly.
- Unstake, then remove driveshaft nut and washer.
- Remove ball joint pinch bolt, then pry ball joint from knuckle.
- On models except sedan, pry inboard driveshaft joints from transaxle using a pry bar or large screwdriver.
- On sedan models, remove drive axle as follows:
- Pry lefthand side inboard driveshaft joint from transaxle using a large screwdriver.
- Using a suitable soft mallet, tap at base of right inner joint to remove from intermediate driveshaf...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
Alternator, Replace
Vehicle: 1990 GEO Metro 1.0 L3 GAS
- Disconnect battery ground cable at battery.
- Remove protective cover, then nut from B+ terminal on alternator.
- Remove electrical connector from alternator.
- Remove drive belt adjuster bolt.
- Remove drive belt.
- Remove alternator mounting bolts.
- Rem...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
General Motors Corp./Saturn Cars -> Reduce Engine Power Indicator Lamp ->
Vehicle: 1990 GEO Metro LSI 1.0 L3 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...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 GEO Metro LSI 1.0 L3 GAS
Inlet
- Drain coolant into a suitable container.
- Loosen hose clamp connecting hose to heater core inlet tube.
- Loosen hose clamp connecting hose to intake manifold.
- Remove hose from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 GEO Metro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 GEO Metro LSI 1.0 L3 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 1990 GEO Metro AUTOMOBILES
Component location diagrams for most 1990 GEO Metro cars and light trucks sold in the U.S. from 1990+.
Ground Locations Diagram for 1990 GEO Metro XFI 1.0 L3 GAS Components on diagram: |
Engine Compartment Electrical Component Locations Diagram for 1990 GEO Metro LSI 1.0 L3 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1990 GEO Metro AUTOMOBILES
OEM drawn wiring diagrams for most 1990 GEO Metro cars and light trucks sold in the U.S.
1990 GEO Metro LSI 1.0 L3 GAS Wiring Diagram Components on diagram: |
1990 GEO Metro XFI 1.0 L3 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 GEO Metro AUTOMOBILES
OEM TSB listings for most 1990 GEO Metro cars and light trucks sold in the U.S. from 1985+.
Document: INFORMATION ON USE OF DIAGNOSTIC WORKSHEET - REVISED Vehicle: 1990 GEO Metro LSI 1.0 L3 GAS Auto Systems: |
Document: RELEASE OF GM TOOL ORGANIZATION DVD VERSION 8.0 Vehicle: 1990 GEO Metro LSI 1.0 L3 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 GEO Metro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 GEO Metro 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 Metro 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 Metro 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 Metro 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
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