1997 1998 Subaru Impreza Workshop Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza Years Covered: 1997, 1998 Codes Chassis Codes: GC, GF, GM (Sedan, Coupe, Wagon) 👋 Introduction Market Position Segment: Compact/Small Family Car, known...

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标签: 1997 1998 Car Cars Impreza Subaru

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza

Years Covered:

1997, 1998

Codes

Chassis Codes:

GC, GF, GM (Sedan, Coupe, Wagon)

👋 Introduction

Market Position

Segment:

Compact/Small Family Car, known for its sporty handling and AWD capabilities.

Competitive Analysis

Competitors:

Honda Civic, Toyota Corolla, Mitsubishi Lancer, Ford Escort, Nissan Sentra.

Key Features

All Wheel Drive:

Standard Symmetrical All-Wheel Drive across most trims, a significant differentiator.

Performance Variants:

Introduction of the WRX STI model in this generation, setting benchmarks for performance compacts.

Manual Value

Benefit To Owner:

Empowers owners with the knowledge to perform maintenance, troubleshoot issues, and understand complex systems, potentially saving on repair costs and extending vehicle life.

📋 Manual Details

Coverage Areas

Primary Coverage:

Complete Workshop Manual

Page Count

Estimated Pages:

1500+

Manual Type

Type:

Factory Service Manual (FSM)

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine:

2.2L EJ22, 2.5L EJ25D (Naturally Aspirated and Turbocharged EJ257 for WRX STI variants, though primary focus is NA and EJ25D for standard models)

Transmission:

5-Speed Manual (Aisin), 4-Speed Automatic (JATCO)

Drivetrain:

All-Wheel Drive (Symmetrical AWD) system diagnosis and repair

Suspension:

Front MacPherson struts, Rear multi-link independent suspension, alignment specifications

Brakes:

Front and Rear disc brakes, ABS system diagnosis and repair

Steering:

Power assisted rack and pinion steering system

Electrical:

Complete wiring diagrams, component locations, fuse/relay information, diagnostic procedures

HVAC:

Air conditioning, heating, ventilation system diagnosis and repair

Bodywork:

Exterior and interior trim removal/installation, panel repair, glass replacement

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, spark plug service, timing belt replacement

Diagnostics:

Troubleshooting guides, fault code interpretation (OBD-I/OBD-II), component testing

Repair:

Engine mechanical repairs, transmission overhaul, brake caliper replacement, suspension component replacement, electrical component repair

Overhaul:

Engine and transmission rebuild procedures, torque specifications

Calibration:

Wheel alignment specifications, steering angle sensor calibration (if applicable)

Technical Depth

Depth:

Comprehensive, suitable for professional technicians and advanced DIYers

Detail Level:

Step-by-step instructions, exploded views, diagrams, torque values, clearances

📊 Manual Specifications

File Format

Searchable Text:

Printable:

Print Quality

Image Clarity:

High-resolution, clear diagrams and illustrations

Binding Type

Digital Format Notes:

Secure PDF, often with multi-device access options.

Paper Type

Physical Copy Notes:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

2.2L Ej22:

Naturally Aspirated, SOHC, 16-valve Boxer engine. Power: ~135-137 hp @ 5500-5800 rpm, Torque: ~140-145 lb-ft @ 4000-4400 rpm.

2.5L Ej25D:

Naturally Aspirated, DOHC, 16-valve Boxer engine. Power: ~165-170 hp @ 5600-6000 rpm, Torque: ~162-166 lb-ft @ 4000-4400 rpm. Known for its dual overhead cams and slightly more power.

Performance

Ej257 Turbocharged:

For WRX STI models, turbocharged EJ257, offering significantly higher horsepower and torque (specifics vary, but typically 270+ hp).

Fuel System

Injection Type:

Multi-point Fuel Injection (MPI)

Recommended Fuel:

87 Octane (91 Octane for Turbocharged STI variants)

Cooling System

Coolant Type:

Subaru Super Coolant (Blue) or equivalent silicate-free OAT coolant.

Lubrication

Oil Capacity Ej22:

Approx. 4.5 US quarts (4.3 Liters) with filter change.

Oil Capacity Ej25D:

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

Recommended Oil:

SAE 5W-30 API SG or SH (check owner's manual for specific viscosity based on temperature).

Ignition System

Spark Plugs:

Specific NGK or Denso plugs; refer to manual for exact part numbers and gap.

🔧 Transmission

Standard

Manual Transmission:

5-speed manual gearbox (TY75 series typically)

Optional

Automatic Transmission:

4-speed automatic transmission (4EAT)

Features

AWD System:

Viscous coupling center differential with front open differential (manual trans), Active front differential (auto trans standard, with viscous coupling center diff for AWD).

Maintenance

Manual Trans Fluid:

API GL-5, SAE 75W-90 gear oil. Capacity approx. 2.1 liters.

Auto Trans Fluid:

Subaru ATF HP or Dexron III equivalent. Capacity approx. 4.4 liters for drain/fill.

📐 Dimensions

Exterior

Length:

Approx. 170-174 inches (depending on body style)

Width:

Approx. 67 inches

Height:

Approx. 56-57 inches (sedan), 58-59 inches (wagon)

Weights

Curb Weight:

Approx. 2800-3100 lbs (depending on configuration)

Gross Vehicle Weight Rating:

Refer to vehicle VIN plate or owner's manual.

🛡️ Safety Features

Ratings

NHTSA Front Crash:

Generally good for its era, though specific ratings may vary by test and year. The manual will detail safety system components.

IIHS Side Impact:

Check individual year and trim for specific IIHS ratings.

Active Features

Anti-lock Braking System available on most models.

Passive Features

Airbags:

Driver and front passenger airbags.

Seatbelts:

Three-point front and rear seatbelts, pretensioners for front seats.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/Cassette/CD player, speaker configurations vary by trim. Aftermarket upgrade guidance may be present.

Driver Assistance

Cruise Control:

Available on higher trim levels.

Connectivity

OBD Ii Port:

Introduced during this period, facilitating engine diagnostics. Manual covers OBD-I and early OBD-II interpretation.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,750-7,500 miles or 6 months, depending on driving conditions (refer to manual for specifics).

Timing Belt Replacement:

Recommended every 105,000 miles or 7 years for EJ series engines. Crucial service.

Coolant Flush:

Every 30,000 miles or 2 years.

Transmission Fluid Change:

Manual: 30,000-60,000 miles. Automatic: 30,000 miles (drain/fill recommended). Check manual for exact intervals.

Fluid Specifications

Brake Fluid:

DOT 3 or DOT 4 (verify with owner's manual).

Power Steering Fluid:

ATF Dexron II or III compatible fluid.

Clutch Fluid:

DOT 3 or DOT 4 brake fluid (shared reservoir with brakes).

Known Issues

Ej25D Head Gaskets:

Certain EJ25D engines (particularly early versions) were prone to head gasket leaks. The manual details inspection and replacement procedures.

Crankshaft Position Sensor:

Potential failure leading to no-start or stalling conditions.

Idle Air Control Valve:

Can become clogged, leading to rough idle or stalling.

Rear Wheel Bearings:

Can wear out over time, especially on AWD models due to added stress.

📚 Vehicle History

Brand Heritage

Subaru Philosophy:

Emphasis on Boxer engines, All-Wheel Drive, and rally-inspired performance, dating back to the early days of Subaru.

Model Evolution

First Generation:

The first generation of the Impreza (1992-2000) established the Impreza's reputation for reliable performance and AWD capability. This manual covers the facelifted version of the first generation.

Production

Manufacturing Location:

Japan (primarily Gunma Plant)

Key Variants Introduced:

Introduction of the high-performance WRX and WRX STI models, which became iconic in the automotive world, especially due to rally success.

🏆 Awards & Recognition

Recognitions

Rally Success:

While not direct awards for the production car, the Impreza's dominance in WRC (World Rally Championship) significantly boosted its image and performance credentials.

Ratings

Car And Driver 10Best:

The Impreza WRX variant often appeared on Car and Driver's 10Best lists in later generations, highlighting its performance capabilities.