Vehicle Segment:
Compact car, known for its all-wheel-drive capability and rally heritage.
Competitors:
Honda Civic, Toyota Corolla, Mazda 3, Mitsubishi Lancer, Ford Focus.
All Wheel Drive:
Subaru's signature Symmetrical All-Wheel Drive system was a major selling point, offering superior traction and handling.
Rally Heritage:
The Impreza's strong ties to World Rally Championship (WRC) success influenced its performance-oriented image.
Coverage Summary:
Comprehensive service, repair, and diagnostic information for all systems.
Estimated Page Count:
1500+
Manual Type:
Factory Service Manual / Workshop Manual
Format:
Digital (Likely PDF, though physical copies exist)
Engine Mechanical:
Engine assembly, disassembly, inspection, repair, timing belt, cylinder heads, pistons, crankshaft.
Engine Performance:
Fuel injection system, ignition system, emissions control, turbocharger systems (for WRX models).
Transmission Drivetrain:
Manual transmission (5-speed), automatic transmission (4-speed), clutch, driveshafts, differentials, AWD system.
Suspension Steering:
Front and rear suspension components, struts, springs, control arms, power steering system, wheel alignment.
Brakes:
Front and rear brake systems (disc/disc or disc/drum depending on trim), ABS system, parking brake.
Electrical Electronics:
Wiring diagrams, starter system, charging system, lighting, power windows, central locking, SRS (airbag) system.
HVAC:
Heating, ventilation, and air conditioning system components and service.
Body Chassis:
Body panels, doors, interior trim, glass, underbody protection, frame components.
Maintenance Procedures:
Oil changes, fluid checks and replacements, filter replacements, spark plug replacement, belt inspection/replacement.
Diagnostic Procedures:
Troubleshooting guides, symptom-based diagnostics, OBD-II diagnostic trouble codes (DTCs) and their meanings.
Repair Procedures:
Detailed step-by-step instructions for component replacement, overhaul, and adjustment.
Rebuild Procedures:
Complete engine and transmission rebuild procedures, including torque specifications and clearances.
Calibration Adjustment:
Idle speed control, throttle body cleaning/adjustment, clutch engagement point adjustment.
Depth Level:
Factory-level diagnostics and repair, suitable for professional technicians and advanced DIY enthusiasts.
Digital Format Details:
Typically provided as a searchable PDF, allowing for easy navigation and keyword searching. High resolution for clear diagrams.
Print Quality Description:
If printed, expected to be high-quality with clear text and diagrams. Digital versions offer scalable graphics.
Binding Type Description:
For physical copies: Coil-bound or perfect-bound for lay-flat usability in a workshop environment.
Paper Type Description:
For physical copies: Durable, coated paper to withstand grease and workshop conditions.
Engine Options:
2.5L Naturally Aspirated (EJ251/EJ252/EJ253), 2.0L Turbocharged (EJ205 for WRX)
Naturally Aspirated Horsepower:
Approximately 165-175 hp (depending on specific engine variant and market)
Naturally Aspirated Torque:
Approximately 170-177 lb-ft (depending on specific engine variant and market)
Turbocharged Horsepower Wrx:
Approximately 227 hp
Turbocharged Torque Wrx:
Approximately 217 lb-ft
Fuel Injection Type:
Multi-point fuel injection (MPI)
Fuel Type:
Unleaded gasoline (87 octane minimum for NA, 91 octane recommended for WRX)
Valvetrain:
DOHC, 16 valves (per cylinder head)
Timing Belt Replacement Interval:
Every 105,000 miles or 105 months, whichever comes first (critical maintenance item).
Standard Transmission Type:
5-speed manual transmission
Optional Transmission Type:
4-speed automatic transmission
AWD System:
Viscous coupling center differential (manual) or electronically controlled clutch pack (automatic) distributing power to all wheels.
Manual Transmission Fluid:
API GL-5, SAE 75W-90 gear oil (Subaru Extra-S or equivalent recommended)
Automatic Transmission Fluid:
Subaru ATF-HP (Type H6) or equivalent
Length:
Approx. 173.8 inches (4415 mm)
Width:
Approx. 66.7 inches (1695 mm)
Height:
Approx. 56.1 inches (1425 mm)
Wheelbase:
Approx. 99.9 inches (2535 mm)
Curb Weight:
Approx. 2,850 - 3,150 lbs (depending on trim and drivetrain)
Gross Vehicle Weight Rating:
Varies by model and configuration, typically around 4,000 lbs.
NHTSA Front Impact Rating:
Likely 4-star driver, 5-star passenger (based on typical ratings for this era).
IIHS Frontal Offset Rating:
Good (for models tested, generally performed well for its class).
Anti Lock Brakes:
Standard on most trims, often combined with Electronic Brakeforce Distribution (EBD).
All Wheel Drive:
Provides enhanced traction and stability in various driving conditions.
Airbags:
Frontal airbags for driver and passenger, optional side airbags on some trims.
Seatbelts:
3-point seatbelts with pretensioners and load limiters for front occupants.
Audio System:
Standard AM/FM/CD player, with optional premium audio systems and cassette players on some trims.
Display:
Basic digital clock and radio display.
Cruise Control:
Available on most trims.
Keyless Entry:
Available on higher trim levels.
Connectivity Features:
Limited by era; primarily focused on radio and CD playback.
Oil Change Interval:
Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type used (check manual for specifics).
Air Filter Replacement:
Every 15,000-30,000 miles or as needed based on inspection.
Cabin Air Filter Replacement:
Every 15,000-30,000 miles or annually.
Engine Oil Type:
5W-30 or 10W-30 API SG or higher (check manual for exact specification, especially for WRX).
Coolant Type:
Subaru Super Coolant (Blue) or equivalent ethylene glycol-based coolant with corrosion inhibitors. 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Power Steering Fluid Type:
Subaru Power Steering Fluid or equivalent DEXRON II/III ATF.
Head Gaskets:
While less prevalent than in some earlier EJ engines, early signs of head gasket leakage (coolant loss, milky oil) are always a concern and should be checked.
Clutch Wear:
Can be a wear item, especially with spirited driving or AWD engagement.
Catalytic Converter Failure:
Can sometimes fail, leading to reduced engine performance and check engine lights.
Window Regulators:
Power window regulators can sometimes fail.
Subaru Heritage:
Subaru, known for its aviation roots, has a long history of developing reliable and capable vehicles, particularly with its boxer engines and Symmetrical AWD.
Generation Details:
This 2001 model represents the second generation (GD/GG) of the Impreza, a significant redesign from the first generation, with a more sculpted body and improved chassis.
Production Period:
The second generation Impreza was produced from 2000 to 2007.
Manufacturing Locations:
Primarily manufactured in Japan (Gunma Prefecture).
Car And Driver 10Best:
The Subaru Impreza WRX variants often appeared on Car and Driver's 10Best lists in subsequent years for their performance.
Consumer Reports Reliability:
Reliability ratings varied by year and specific model, with some years performing better than others. The manual is essential for proactive maintenance.
