1997-1998 SUBARU IMPREZA WRX Service Repair Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Model Generation: GC/GF Model Code: GDB (WRX STi, but WRX shares platform) Product Name: 1997-1998 Subaru Impreza WRX Service Repair Manual...

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UGS: 394366

Mots clés: 1997 1998 Car Cars IMPREZA WRX Misc Subaru

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza WRX

Model Generation:

GC/GF

Model Code:

GDB (WRX STi, but WRX shares platform)

Product Name:

1997-1998 Subaru Impreza WRX Service Repair Manual

Codes

Product Code:

N/A (This is a sales description, not a product catalog code)

👋 Introduction

Market Position

Segment:

Compact Performance Sedan/Wagon

Target Enthusiast:

Rallying enthusiasts, performance car drivers seeking AWD capability and turbocharged power.

Competitive Analysis

Key Competitors:

Mitsubishi Lancer Evolution (Evo III, IV), Ford Escort Cosworth, Toyota Celica GT-Four, Nissan Pulsar GTI-R.

Key Features

Powertrain Philosophy:

Symmetrical All-Wheel Drive, turbocharged Boxer engine, performance-oriented suspension.

Rally Homologation:

The Impreza WRX was developed for Group A rally homologation, influencing its robust construction and performance focus.

Manual Value Proposition

Why Buy:

Essential for owners and independent mechanics wanting to perform accurate repairs and maintenance on this performance icon.

📋 Manual Details

Coverage Areas

Language:

English

Manual Type:

Service and Repair Manual

Format:

Intended Audience:

Dealerships and Professional Technicians

Completeness:

Comprehensive, detailed repair and service information

Page Count

Page Count:

Estimated 2000+ pages (typical for factory service manuals of this era)

📖 Manual Coverage

Systems Covered

Engine:

Engine mechanical (EJ20G, EJ20K variants), Engine control systems, Fuel injection, Ignition system, Lubrication, Cooling, Emissions control

Transmission:

Manual transmission (TY752VW, TY754VW), Clutch system, Drivetrain (front/rear differentials, drive shafts)

Brakes:

Front ventilated discs, Rear discs (Vented on WRX), ABS system (if equipped), Brake hydraulics, Parking brake

Suspension:

Front MacPherson struts, Rear multi-link independent suspension, Stabilizer bars, Bushings, Wheel alignment

Steering:

Power assisted rack and pinion, Steering column, Tie rod ends

Electrical:

Wiring diagrams, Fuses, Relays, Battery, Charging system (alternator), Starting system, Lighting (headlights, taillights, interior), Instrumentation, Power accessories (windows, locks)

Body And Chassis:

Body panels, Doors, Hood, Trunk, Bumpers, Chassis structure, Interior trim, Glass, Sealants

Heating And Air Conditioning:

HVAC system components, Refrigerant, Controls, Blower motor, Evaporator, Condenser

Safety Systems:

Airbag system (if equipped), Seat belt mechanisms

Procedures Included

Maintenance:

Oil change, Filter replacement, Spark plug replacement, Coolant flush, Brake fluid flush, Air filter replacement, Timing belt inspection/replacement

Diagnostics:

Troubleshooting guides for engine, transmission, electrical, and other systems. Diagnostic Trouble Codes (DTCs) and their meanings.

Repair:

Component removal, installation, overhaul, and adjustment procedures for all major systems.

Specifications:

Torque specifications for fasteners, Clearances, Tolerances, Fluid capacities, Electrical specifications (resistance, voltage, current)

Rebuild:

Detailed procedures for engine and transmission rebuilds.

Adjustments:

Valve adjustments, Throttle body adjustments, Clutch adjustments.

Wiring:

Complete electrical system wiring diagrams with component locations and wire colors.

Technical Depth

Depth:

Advanced diagnostic procedures, component-level repair, engine and transmission rebuilding, full electrical system troubleshooting.

📊 Manual Specifications

File Format

File Type:

PDF (Portable Document Format)

Searchability:

Likely text-searchable (if created from original digital files), allowing quick navigation to specific topics.

Printability:

Printable (standard PDF feature), allowing users to print specific sections or the entire manual.

Print Quality

Image Resolution:

Typically high resolution for clear diagrams and illustrations (assumed from professional dealership manuals).

Binding Type

Binding:

N/A (PDF format, not a physical book)

Paper Type

Paper:

N/A (PDF format, not a physical book)

⚙️ Engine Specifications

Primary Engine

Engine Code 1:

EJ20G (likely for 1997 models)

Engine Code 2:

EJ20K (likely for 1998 models, featuring minor upgrades)

Engine Type:

Horizontally-opposed (Boxer), turbocharged, intercooled, DOHC (Dual Overhead Camshaft), 16-valve

Displacement:

2.0 Liters (1994 cc)

Performance

Horsepower Ej20G:

Approximately 240 PS (237 hp) @ 6000 rpm (varies slightly by market)

Torque Ej20G:

Approximately 314 Nm (231 lb-ft) @ 4000 rpm (varies slightly by market)

Horsepower Ej20K:

Approximately 260 PS (256 hp) @ 6000 rpm (varies slightly by market)

Torque Ej20K:

Approximately 330 Nm (243 lb-ft) @ 4000 rpm (varies slightly by market)

Fuel System

Fuel Delivery:

Multi-point fuel injection (MPI) with electronic throttle control

Fuel Type:

Premium Unleaded Gasoline (Octane Rating 98 RON / 92+ AKI)

Turbocharger:

Garrett T25 or IHI VF series (specific model varies)

Intercooler:

Air-to-air front-mounted intercooler

🔧 Transmission

Standard

Transmission Type:

5-speed manual transmission

Transmission Code:

TY752VW (1997), TY754VW (1998, with DCCD option)

Optional

Dccd:

Driver Controlled Centre Differential (Optional on some 1998 models)

Features

AWD System:

Subaru Symmetrical All-Wheel Drive with viscous center differential (mechanical rear differential on non-DCCD models)

Clutch Type:

Hydraulically actuated single dry plate clutch

📐 Dimensions

Exterior

Length:

Approx. 4345 mm (171.1 in) (Sedan)

Width:

Approx. 1690 mm (66.5 in)

Height:

Approx. 1400 mm (55.1 in) (Sedan)

Wheelbase:

Approx. 2520 mm (99.2 in)

Front Track:

Approx. 1450 mm (57.1 in)

Rear Track:

Approx. 1440 mm (56.7 in)

Weights

Curb Weight:

Approx. 1300-1350 kg (2866-2976 lbs) (depending on body style and options)

Gross Vehicle Weight Rating:

N/A (Specific GVWR not readily available, but exceeds curb weight)

Towing Capacity:

Not specified/recommended for towing

🛡️ Safety Features

Ratings

NHTSA Front Impact:

Not rated by NHTSA for these model years in a standardized manner as seen today.

IIHS Ratings:

N/A (IIHS ratings not consistently available for this era and specific performance model).

Active Features

Anti-lock Braking System (Standard on WRX models)

Symmetrical All-Wheel Drive provides enhanced traction and stability.

Passive Features

Airbags:

Driver and passenger front airbags (Standard)

Seatbelts:

3-point inertia-reel seatbelts with pretensioners (front)

Chassis Design:

Reinforced safety cell, crumple zones.

💡 Technology Features

Infotainment

Head Unit:

Factory AM/FM stereo with cassette player, optional CD player. Basic sound system.

Speakers:

Typically 4 or 6 speakers depending on trim.

Driver Assistance

ABS System:

Standard Anti-lock Braking System (ABS) for improved braking control.

AWD System:

The core technological feature is the Symmetrical All-Wheel Drive system, providing superior traction.

Connectivity

Bluetooth:

Not available in factory configuration.

Not available in factory configuration.

Climate Control

Air Conditioning:

Available, with manual controls.

Climate Control Type:

Manual air conditioning and heating.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 miles (4,800-8,000 km) or 6 months, whichever comes first (depending on driving conditions; more frequent for spirited driving).

Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection.

Spark Plug Replacement:

Every 30,000-60,000 miles (48,000-96,000 km), depending on plug type (iridium/platinum recommended).

Timing Belt Replacement:

Every 60,000-100,000 miles (96,000-160,000 km) or 7-10 years. Crucial for EJ engines.

Coolant Flush:

Every 30,000-60,000 miles (48,000-96,000 km)

Fluid Specifications

Engine Oil Type:

API SG or higher, SAE 10W-30 or 10W-40 (check manual for exact viscosity based on temperature). Synthetic recommended for performance.

Engine Oil Capacity:

Approx. 4.5 Liters (4.8 US Quarts) with filter change

Coolant Type:

Subaru Super Coolant (Blue) or equivalent silicate-free antifreeze/coolant, mixed 50/50 with distilled water.

Transmission Fluid Type:

API GL-5, SAE 75W-90 (for manual transmission). Check differential fluid as well.

Brake Fluid Type:

DOT 3 or DOT 4

Known Issues

Engine Sealing:

Head gasket leaks, valve cover gasket leaks, and rear crankshaft seal leaks are common on EJ engines.

Timing Belt:

Timing belt failure can cause catastrophic engine damage (interference engine). Strict adherence to replacement intervals is critical.

Turbocharger:

Turbocharger wear and failure can occur from lack of maintenance or oil starvation. Proper oil changes are vital.

Clutch:

Clutch wear is typical for performance driving. Some models may have had clutch judder issues.

Rust:

Rust can be an issue in certain climates, particularly on fenders, rocker panels, and rear wheel arches.

📚 Vehicle History

Brand Heritage

Subaru Rally History:

Subaru has a long and storied history in World Rally Championship (WRC), with the Impreza WRX being its primary rally car.

Model Evolution

Impreza Introduction:

The first generation Impreza (GC/GF) was launched in 1992, with the WRX variant introduced shortly after as a homologation special.

Gc8 Chassis:

The 'GC' designation refers to the sedan, and 'GF' to the wagon body styles of this generation.

Performance Upgrades Over Time:

This period (1997-1998) saw iterative improvements on the EJ20 engine and chassis tuning for the WRX.

Production

Production Location:

Japan (Subaru's Gunma Plant)

Model Years Covered:

1997 and 1998

🏆 Awards & Recognition

Recognitions

Rally Dominance:

The Impreza WRX (and its STi sibling) was a dominant force in WRC, winning multiple manufacturers' and drivers' championships for Subaru.

Performance Car Acclaim:

Praised by automotive journalists for its exceptional handling, performance, and AWD capability for its price point.

Ratings

Jdm Icon:

Considered a legendary JDM (Japanese Domestic Market) performance car, highly sought after by enthusiasts globally.