Subaru Impreza WRX 1997 1998 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 1997-1998 Codes Chassis Code: GC8 Engine Code: EJ20G (Turbocharged) 👋 Introduction Market Position Positioning: Performance-oriented rally homologation special, a sub-segment...

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类型: Car

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标签: 1997 1998 Car Cars Impreza WRX Misc Subaru

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza WRX

Year:

1997-1998

Codes

Chassis Code:

Engine Code:

EJ20G (Turbocharged)

👋 Introduction

Market Position

Positioning:

Performance-oriented rally homologation special, a sub-segment leader for affordable performance and rallying heritage.

Competitive Analysis

Competitors:

Mitsubishi Lancer Evolution (though Evo IV was contemporary, Evo III was more direct competitor), Ford Escort RS Cosworth (older), Rally variants of other compact sedans.

Key Features

Features:

Symmetrical All-Wheel Drive, turbocharged boxer engine, performance suspension tuning, aggressive styling, rally-bred pedigree.

Target Audience

Audience:

Enthusiasts, rally fans, DIY mechanics, and owners seeking in-depth knowledge for maintenance and modification.

📋 Manual Details

Coverage Areas

Coverage:

Complete factory service and repair for 1997-1998 Subaru Impreza WRX

Page Count

Pages:

Hundreds (Exact count not specified but implied to be comprehensive)

Manual Type

Type:

Factory Service Repair Manual

Language

Language:

English

Format

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered

Engine:

Detailed diagnosis, repair, overhaul, and specifications for the EJ20G turbocharged engine.

Transmission:

Service and repair procedures for the manual transmission (likely 5-speed). Includes clutch, gearbox, and drivetrain components.

Suspension:

Front and rear suspension systems, including struts, control arms, bushings, and alignment specifications.

Brakes:

Hydraulic brake system, including master cylinder, brake lines, calipers, pads, rotors, and ABS (if equipped).

Electrical:

Full wiring diagrams, component testing, diagnosis of electrical faults, lighting, ignition, starting, charging, and accessory systems.

Fuel System:

Fuel injection system, fuel pump, injectors, fuel pressure regulation, and emissions control components.

Cooling System:

Radiator, water pump, thermostat, hoses, and fan operation.

Exhaust System:

Catalytic converter, mufflers, and exhaust manifold diagnosis and repair.

Body And Chassis:

Body panel repair, interior trim removal, glass replacement, and chassis components.

HVAC:

Heating, ventilation, and air conditioning system components and service.

Procedures Included

Maintenance:

Scheduled maintenance procedures, fluid changes, filter replacements, and tune-up specifications.

Troubleshooting:

Detailed diagnostic flowcharts and procedures for identifying and resolving common issues.

Repair:

Step-by-step instructions for component replacement and repair across all major systems.

Rebuild:

Overhaul procedures for the engine and transmission, including torque specifications and tolerances.

Installation:

Guidance for installing replacement parts and performing upgrades.

Wiring Diagrams:

Comprehensive and detailed electrical wiring schematics for all vehicle circuits.

Technical Depth

Depth:

Comprehensive, covering basic maintenance to advanced engine and transmission rebuilds, electrical diagnostics, and bodywork.

📊 Manual Specifications

File Format

Format:

Print Quality

Quality:

High-resolution, allowing for clear printing of diagrams and text.

Binding Type

Binding:

N/A (Downloadable PDF implies digital format, printable)

Paper Type

Paper:

N/A (Downloadable PDF implies digital format, printable)

Searchability

Searchable:

Typically PDF manuals are searchable by text.

Software Requirements

Software:

PDF reader software (e.g., Adobe Acrobat Reader)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Horizontally-opposed (Boxer) 4-cylinder, turbocharged, intercooled

Displacement:

1994cc (2.0 Liters)

Bore X Stroke:

92.0 mm x 75.0 mm

Compression Ratio:

8.0:1

Engine Code:

EJ20G

Performance

Horsepower Ps:

240 PS @ 6000 rpm (approx.)

Torque Nm:

304 Nm @ 4000 rpm (approx.)

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI) with Multi-point injection (MPI)

Fuel Type:

Unleaded gasoline (premium, high octane recommended)

Ignition System

Ignition Type:

Distributorless ignition system (DIT)

Turbocharger

Turbocharger Model:

IHI VF23 (or similar depending on market variant)

Cooling System

Coolant Capacity Liters:

Approx. 7.3 Liters

Lubrication System

Oil Capacity Liters:

Approx. 4.2 Liters (with filter)

Oil Grade:

10W-30 or 10W-40 API SG/SH (refer to manual for specific climate recommendations)

🔧 Transmission

Standard

Type:

5-speed Manual Transmission

Drive Layout:

Symmetrical All-Wheel Drive (AWD)

Optional

Type:

N/A (WRX models of this era were primarily manual)

Features

Center Differential:

Viscous coupling limited-slip center differential

Rear Differential:

Limited-slip rear differential (LSD)

Fluid Specifications

Manual Transmission Fluid:

API GL-5 75W-90 Gear Oil (refer to manual for Subaru genuine part number)

📐 Dimensions

Exterior

Length Mm:

Approx. 4350 mm

Width Mm:

Approx. 1735 mm

Height Mm:

Approx. 1405 mm

Wheelbase Mm:

Approx. 2520 mm

Track Width Front Mm:

Approx. 1470 mm

Track Width Rear Mm:

Approx. 1465 mm

Weights

Curb Weight Kg:

Approx. 1300-1350 kg (varies by trim and equipment)

Gross Vehicle Weight Rating Kg:

Not explicitly stated in product info, but manual will contain this.

Wheels And Tires

Wheel Size:

16-inch or 17-inch alloy wheels (common)

Tire Size Standard:

205/55R16 or 215/40R17 (common, refer to manual for definitive specs)

Bolt Pattern:

5x100mm

🛡️ Safety Features

Ratings

NHTSA Ratings:

N/A (Not tested by NHTSA in the modern era for this specific model year)

Active Features

Subaru's Symmetrical All-Wheel Drive system provides enhanced traction and stability.

Anti-lock Braking System (ABS) was often optional or standard on WRX models of this era.

Passive Features

Airbags:

Driver and passenger airbags (standard)

Seatbelts:

3-point seatbelts with pretensioners

Chassis Design:

Reinforced safety cell, crumple zones.

💡 Technology Features

Infotainment

System:

Basic AM/FM radio with cassette player and CD player (optional on some trims). Limited digital integration.

Driver Assistance

Features:

Primarily mechanical driver aids like AWD and ABS (if equipped). No electronic stability control or advanced ADAS features.

Connectivity

Features:

N/A (No Bluetooth, USB, or smartphone integration available in this era).

Instrumentation

Gauges:

Comprehensive analog gauges including speedometer, tachometer, fuel level, coolant temperature, oil pressure, and boost gauge.

🔧 Maintenance

Service Intervals

Oil Change Interval Km:

Typically 5,000-7,500 km or 6 months (refer to manual for exact guidance based on driving conditions)

Air Filter Replacement Km:

Every 15,000-20,000 km (or as needed based on inspection)

Spark Plug Replacement Km:

100,000 km for iridium plugs, refer to manual for specific plug type and interval.

Timing Belt Replacement Km:

96,000 km or 7 years (critical maintenance item for EJ engines)

Fluid Specifications

Brake Fluid:

DOT 3 or DOT 4 (refer to manual for specific Subaru recommendation)

Power Steering Fluid:

Subaru Genuine Power Steering Fluid or Dexron III compatible ATF (refer to manual)

Coolant:

Subaru Super Coolant or equivalent (ethylene glycol based, blue color)

Known Issues

Engine Component Wear:

Ringland failure, piston slap (especially if poorly maintained or abused), oil leaks from seals (crankshaft, camshaft).

Turbocharger Issues:

Bearing wear, oil starvation if not properly serviced or if oil changes are neglected.

Suspension Wear:

Worn bushings, struts leaking or blown, especially on higher mileage examples or those driven hard.

Differential Issues:

Rear differential clunks or whining can indicate wear.

Parts Information

Part Numbers:

The manual will contain extensive part numbers for all components, crucial for sourcing replacements.

📚 Vehicle History

Brand Heritage

Heritage:

Subaru has a long history in motorsports, particularly in rallying, establishing the WRX nameplate.

Model Evolution

Generation:

First Generation (GC/GF/GM) Impreza, WRX variant of the initial launch.

Rally Homologation:

The WRX (World Rally eXperimental) was developed to homologate the Impreza for the World Rally Championship (WRC).

Production

Production Years:

1992-2000 (First Generation GC)

Manufacturing Location:

Japan

Notable Racing Successes

Wrc Championships:

Manufacturers' Championship in 1995, 1996, and 1997 (with the Impreza WRC).

🏆 Awards & Recognition

Recognitions

Rally Performance:

The Impreza WRX platform was instrumental in Subaru's multiple WRC Manufacturers' Championships during this era.

Ratings

Performance Reviews:

Consistently praised by automotive journalists for its handling, grip, and accessible performance.

Certifications

Wrc Homologation:

The production WRX models served as the basis for WRC-spec rally cars, validating their engineering and performance.