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2004 Subaru Impreza STI Workshop Factory Service Repair Manual

$16.99
$16.99
🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Year: 2004 Codes Chassis Code: GDB Engine Code: EJ257 👋 Introduction Market Position Positioning: Performance compact sedan, rallying heritage, enthusiast-focused...
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Taper: Car
Distributeur:
Subaru
UGS: 347738
Mots clés: 2004 Car Cars Impreza STI Misc Subaru
2004 Subaru Impreza STI Workshop Factory Service Repair Manual
🏷️ Basic Information
Identification
Make:
Subaru
Model:
Impreza WRX STI
Year:
2004
Codes
Chassis Code:
GDB
Engine Code:
EJ257
👋 Introduction
Market Position
Positioning:
Performance compact sedan, rallying heritage, enthusiast-focused vehicle
Competitive Analysis
Competitors:
Mitsubishi Lancer Evolution, Honda Civic Type R, Volkswagen Golf GTI
Key Features
Performance Features:
Symmetrical All-Wheel Drive, turbocharged Boxer engine, performance-tuned suspension
Rally Heritage:
Direct lineage from WRC-winning vehicles
📋 Manual Details
Coverage Areas
Coverage:
Complete vehicle coverage for the 2004 Subaru Impreza WRX STI
Page Count
Page Count:
Estimated 2000+ pages (typical for full workshop manuals)
Manual Type
Type:
Factory Service Manual / Workshop Manual / Repair Manual
Language
Language:
English
Format
Format:
Digital Download (PDF)
📖 Manual Coverage
Systems Covered
Powertrain:
Engine (EJ257), transmission (6-speed manual), drivetrain (AWD system), exhaust system
Chassis:
Suspension (front/rear), steering system, braking system (ABS), wheels and tires
Electrical:
Wiring diagrams, engine control module (ECM), body control module (BCM), lighting, audio system, power accessories
Body And Interior:
Body panels, interior trim, seats, HVAC system, safety restraints (airbags)
Procedures Included
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, belt inspections
Repair:
Engine overhauls, transmission rebuilds, suspension component replacement, brake system repairs, electrical component diagnosis and replacement
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, symptom-based diagnostics
Specifications:
Torque specifications, clearances, alignment data, electrical resistance values
Technical Depth
Depth:
Comprehensive factory-level detail, suitable for professional technicians and experienced DIY enthusiasts
📊 Manual Specifications
File Format
PDF Quality:
High-resolution, searchable text, printable pages
Searchability:
Fully searchable text for quick information retrieval
Print Quality
Print Recommendation:
Optimized for printing individual sections or the entire manual
Binding Type
Binding Type:
N/A (Digital Download)
Paper Type
Paper Type:
N/A (Digital Download)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Horizontally-opposed (Boxer), turbocharged, intercooled, DOHC, 16-valve
Displacement:
2457 cc (2.5 Liters)
Performance
Horsepower:
300 hp @ 6000 rpm
Torque:
300 lb-ft @ 4000 rpm
Fuel System
Fuel Delivery:
Multi-point fuel injection (MPI), electronic throttle control
Recommended Fuel:
Premium Unleaded (91 octane or higher)
Engine Management
ECU Type:
Denso ECU
🔧 Transmission
Standard
Transmission Type:
6-speed manual transmission
Optional
Optional Transmissions:
None for STI model
Features
AWD System:
Subaru Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD)
Differential Types:
Helical limited-slip front differential, viscous coupling limited-slip center differential, Helical limited-slip rear differential
📐 Dimensions
Exterior
Length:
173.8 inches
Width:
69.7 inches
Height:
57.7 inches
Wheelbase:
100.5 inches
Ground Clearance:
5.1 inches
Weights
Curb Weight:
3263 lbs
🛡️ Safety Features
Ratings
NHTSA Front Impact:
5-star driver, 5-star passenger
IIHS Side Impact:
Acceptable
Active Features
Braking System:
4-wheel disc brakes with ABS (Anti-lock Braking System), Front: 12.7-inch vented rotors with 4-piston Brembo calipers, Rear: 11.3-inch vented rotors with 2-piston Brembo calipers
Traction Control:
Standard (integrated with AWD and DCCD)
Passive Features
Airbags:
Driver and front passenger airbags, front side-impact airbags
Seatbelts:
3-point height-adjustable front seatbelts with pretensioners, LATCH child seat anchors
💡 Technology Features
Infotainment
Head Unit:
Standard AM/FM/CD player with optional premium audio system
Display:
Basic LCD display for audio and clock functions
Driver Assistance
ABS:
Standard Anti-lock Braking System
AWD Control:
Driver Controlled Center Differential (DCCD) for adjustable torque split
Connectivity
Auxiliary Input:
Optional auxiliary audio input jack
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,750 miles or 3 months
Air Filter Replacement:
Every 15,000 miles or 12 months
Spark Plug Replacement:
Iridium: 60,000 miles
Timing Belt Replacement:
N/A (EJ257 uses a timing chain)
Fluid Specifications
Engine Oil Type:
SAE 5W-30 Synthetic
Engine Oil Capacity:
4.8 US quarts (4.5 liters) with filter
Transmission Fluid Type:
GL-4/GL-5 SAE 75W-90 Synthetic
Differential Fluid Type:
GL-5 SAE 75W-90 Synthetic (Front & Rear)
Coolant Type:
Subaru Super Coolant (Blue) or equivalent HOAT
Known Issues
Head Gasket Failure:
Less common on EJ257 compared to earlier EJ25, but still a potential concern; proper maintenance is crucial.
Piston Ringland Failure:
Can occur with aggressive tuning or detonation; careful fuel selection and monitoring are important.
Clutch Wear:
High-performance nature can lead to faster clutch wear under spirited driving conditions.
📚 Vehicle History
Brand Heritage
Subaru Rally History:
Long and successful history in World Rally Championship (WRC) with Impreza models
Model Evolution
Third Generation Gdb:
Introduction of the wider body, improved chassis rigidity, and updated powertrain for the GDB generation (2002-2007)
Production
Production Years:
2002-2007 (GDB generation)
Manufacturing Location:
Japan
🏆 Awards & Recognition
Recognitions
Performance Awards:
Consistently lauded by automotive press for its rally-bred performance and handling capabilities.
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