Subaru Impreza 1994 Repair Service Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 1994 👋 Introduction Market Position Segment: Compact car, known for its all-wheel-drive (AWD) system as standard on most trims. Competitors: Competed...

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Distributeur:

UGS: 392176

Mots clés: 1994 Car Cars Impreza Misc Subaru

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza

Year:

👋 Introduction

Market Position

Segment:

Compact car, known for its all-wheel-drive (AWD) system as standard on most trims.

Competitors:

Competed with vehicles like the Honda Civic, Toyota Corolla, Mitsubishi Lancer, and Ford Escort.

Competitive Analysis

Key Selling Points:

Standard AWD, practical hatchback and sedan body styles, sporty driving dynamics (especially in performance variants like the WRX, though not detailed in this specific manual).

Key Features

Design Philosophy:

Functional, reliable, and often with an emphasis on driver engagement and all-weather capability.

📋 Manual Details

Coverage Areas

Language:

English

Format:

PDF Download

Manual Type:

Repair Service Manual

Target Audience:

Professional Technicians, Advanced DIY Enthusiasts

📖 Manual Coverage

Systems Covered

Engine:

Detailed engine overhaul, disassembly, assembly, diagnosis, and repair procedures for all gasoline engines offered in the 1994 Impreza.

Engine Management:

Ignition system, fuel injection system (MPI), emission control systems (EVAP, EGR), sensor diagnostics, and ECU troubleshooting.

Transmission:

Service and repair for both manual (5-speed) and automatic (4-speed) transmissions, including clutch system, driveshafts, and differential service.

Suspension:

Front and rear suspension component identification, removal, installation, and adjustment for struts, springs, control arms, and bushings.

Steering:

Power steering system diagnosis and repair, steering rack and linkage service, steering column maintenance.

Brakes:

Front and rear brake system service (disc brakes), including brake caliper overhaul, rotor replacement, brake pad replacement, hydraulic system bleeding, and ABS system (if equipped) diagnostics.

Electrical:

Comprehensive wiring diagrams, component location charts, fuse and relay identification, lighting systems, power windows, power locks, horn, wipers, and HVAC electrical controls.

Cooling System:

Radiator, fan, thermostat, water pump, coolant hoses, and heater core service and replacement.

Exhaust System:

Exhaust manifold, catalytic converter, muffler, and pipe replacement.

Body And Frame:

Body panel removal and installation, door mechanisms, hood and trunk operation, interior trim, glass replacement, and frame specifications.

Procedures Included

Routine Maintenance:

Oil and filter changes, air filter replacement, spark plug replacement, fuel filter replacement, coolant checks, belt inspections and replacement, and tire rotation.

Troubleshooting:

Diagnostic charts for common starting, running, and electrical issues, including symptom-based troubleshooting guides.

Major Repairs:

Engine rebuilds, transmission overhauls, head gasket replacement, clutch replacement, suspension component replacement, and brake system repairs.

Component Replacement:

Step-by-step instructions for replacing virtually all serviceable components.

Specifications And Tolerances:

Torque specifications for all fasteners, engine component clearances, and alignment specifications.

Technical Depth

Diagnostic Capabilities:

Includes detailed diagnostic procedures for engine control, fuel injection, and electrical systems, enabling technicians to pinpoint faults accurately.

Repair Complexity:

Covers everything from basic fluid changes to complete engine and transmission rebuilds, catering to a wide range of repair needs.

Diagnostic Tools:

References specific diagnostic tools and methods commonly used for Subaru vehicles of this era, including OBD-I scan data interpretation (where applicable).

📊 Manual Specifications

File Format

File Format:

PDF (Portable Document Format)

Searchability:

Searchable text for quick access to specific information.

Print Quality:

High-resolution scans suitable for clear printing.

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

EJ22E

Engine Type:

Naturally Aspirated Flat-Four (Boxer) SOHC

Displacement:

2.2 Liters (2211 cc)

Bore X Stroke:

96.0 mm x 75.0 mm

Compression Ratio:

9.5:1

Horsepower:

135 hp @ 5600 RPM

Torque:

140 lb-ft @ 4400 RPM

Fuel System

Fuel Delivery:

Multi-Point Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline (87 Octane Recommended)

Engine Management

Ignition System:

Electronic Ignition System with Distributor

Cooling System

Coolant Capacity:

Approx. 6.0 Liters (6.3 US Quarts)

Lubrication

Oil Capacity:

Approx. 4.2 Liters (4.4 US Quarts) with filter

Recommended Oil Viscosity:

SAE 10W-30

🔧 Transmission

Standard

Transmission Type:

5-Speed Manual Transmission

Optional

Transmission Type:

4-Speed Electronically Controlled Automatic Transmission

Features

Drivetrain:

Symmetrical All-Wheel Drive (AWD) standard on most trims.

Fluid Specifications

Manual Transmission Fluid:

GL-5 75W-90 Gear Oil (API service classification)

Automatic Transmission Fluid:

Dexron II or equivalent

Capacity

Manual Transmission Fluid Capacity:

Approx. 2.5 Liters (2.6 US Quarts)

Automatic Transmission Fluid Capacity:

Approx. 3.0 Liters (3.2 US Quarts) for a drain and refill

📐 Dimensions

Exterior

Wheelbase:

2520 mm (99.2 inches)

Length:

4340 mm (170.9 inches) (Sedan)

Width:

1690 mm (66.5 inches)

Height:

1435 mm (56.5 inches) (Sedan)

Wheels Tires

Standard Wheel Size:

14 or 15 inches

Standard Tire Size:

185/70R14 or 195/60R15

Bolt Pattern:

5x100 mm

Weights

Curb Weight:

Approx. 1200-1300 kg (2645-2866 lbs) depending on trim and transmission.

🛡️ Safety Features

Ratings

NHTSA Front Impact:

4/5 Stars (for driver and passenger, specific ratings may vary by year and testing procedures).

Active Features

Anti-lock Braking System (Optional on some trims, standard on others)

Passive Features

Airbags:

Driver side airbag standard.

Seatbelts:

Three-point front and rear seat belts.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM stereo with cassette player, optional CD player on higher trims.

Speaker Configuration:

Typically 4 speakers (2 front, 2 rear), with optional premium sound systems featuring more speakers.

Driver Assistance

Cruise Control:

Available on most trims.

Climate Control:

Manual heating and air conditioning systems.

🔧 Maintenance

Service Intervals

Oil And Filter Change:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first.

Air Filter Replacement:

Every 15,000 miles (24,000 km) or 12 months.

Spark Plug Replacement:

Every 60,000 miles (96,000 km) for standard spark plugs.

Timing Belt Replacement:

Critical: Every 90,000 miles (144,000 km) or 7 years, whichever comes first, due to interference engine design.

Fluid Specifications

Brake Fluid:

DOT 3 or DOT 4

Power Steering Fluid:

ATF Dexron II or equivalent

Coolant:

50/50 mixture of Subaru Genuine Coolant or equivalent ethylene glycol coolant and distilled water.

Known Issues

Head Gaskets:

While less common on the EJ22 than some other Subaru engines, head gasket seepage or failure can occur due to age and mileage. The manual will detail proper inspection and replacement procedures.

Timing Belt Tensioner:

The hydraulic tensioner can weaken over time, leading to timing belt noise or failure. Replacement with the belt is highly recommended.

Automatic Transmission:

Some automatic transmissions may exhibit rough shifting or solenoid issues over time. Regular fluid changes are crucial.

📚 Vehicle History

Brand Heritage

Company Origin:

Subaru, established in 1953, is the automotive division of Subaru Corporation (formerly Fuji Heavy Industries).

Brand Specialties:

Known for its horizontally opposed (boxer) engines and Symmetrical All-Wheel Drive system, pioneered in passenger cars.

Model Evolution

First Generation Introduction:

The first generation Subaru Impreza was introduced globally in 1992 as a replacement for the Subaru Leone.

1994 Model Year:

Represents the early phase of the first generation (GC/GF/GM chassis). Minor updates or revisions may have occurred leading up to this model year.

Production

Manufacturing Locations:

Primarily manufactured in Japan.

🏆 Awards & Recognition

Recognitions

Car And Driver તિહાસ:

The Impreza platform, particularly the WRX variant (though not detailed here), has received numerous accolades in motorsports and automotive publications for its performance and AWD capabilities.