Impreza F4-2.5L SOHC (2003): Engine, Cooling and Exhaust

Also for this vehicle: Impreza 2.5 RS Coupe AWD F4-2.5L SOHC (2001), Impreza 2.5 RS Coupe F4-2.5L SOHC (2000), Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002), Impreza Brighton Coupe AWD F4-2.2L SOHC (1997), Impreza Coupe AWD F4-1820cc 1.8L SOHC (1995), Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995), Impreza F4-2.5L (2008), Impreza GT F4-2.5L Turbo (2009), Impreza L Coupe AWD F4-2.2L SOHC (2001), Impreza L Coupe F4-2.2L SOHC (1999), Impreza L Sedan F4-2.2L SOHC (1997), Impreza L Sport Wagon AWD F4-2.2L SOHC (2001), Impreza L Sport Wagon F4-2.2L SOHC (1999), Impreza Outback Sport AWD F4-2.5L SOHC (2002), Impreza RS Coupe AWD F4-2.5L DOHC (1998), Impreza RS Coupe AWD F4-2.5L SOHC (1999), Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993), Impreza Sedan FWD F4-1820cc 1.8L SOHC (1995), Impreza Wagon AWD F4-1820cc 1.8L SOHC (1993), Impreza Wagon AWD F4-2.2L SOHC (1996), Impreza Wagon FWD F4-1820cc 1.8L SOHC (1995), Impreza WRX F4-2.0L DOHC Turbo (2004), Impreza WRX F4-2.5L DOHC Turbo (2006), Impreza WRX STI F4-2.5L DOHC Turbo (2007), Impreza WRX STI F4-2.5L Turbo (2008), Impreza WRX Wagon F4-2.0L DOHC Turbo (2002).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
- Engine204 pages
- Cooling System93 pages
  - Coolant › Component Information3 pages
    Technical Service Bulletins › Cooling System - Warranty Repair Coolant Usage
    Specifications › Capacity Specifications2
  - Coolant Line/Hose › Component Information › Technical Service Bulletins6 pages
    All Technical Service Bulletins for Coolant Line/Hose: › 09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
    Customer Interest for Coolant Line/Hose: › 09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
  - Coolant Reservoir › Component Information9 pages
    Technical Service Bulletins6 pages
    Customer Interest for Coolant Reservoir: › 09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
    All Technical Service Bulletins for Coolant Reservoir: › 09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
    Service and Repair › Reservoir Tank2 3
  - Radiator Cooling Fan › Radiator Cooling Fan Motor Relay › Component Information › Locations
  - Engine - Coolant Temperature Sensor/Switch6 pages
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2 3
    Temperature Sensor (Gauge) › Component Information › Description and Operation2 3
  - Heater Core › Component Information › Service and Repair
  - Lamps and Indicators - Cooling System › Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13
  - Radiator › Component Information › Specifications2 3 4 5 6 7 8 9 10 11 12
  - Radiator Cap › Component Information › Technical Service Bulletins10 pages
    Customer Interest: › 09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
    All Technical Service Bulletins for Radiator Cap:5 pages
    09-52-08 › Aug › 08 › Cooling System - Coolant Comes Out Of Reservoir2 3
    09-45-06 › Nov › 06 › Cooling System - Radiator Cap2
    All Other Service Bulletins for Radiator Cap: › 09-45-06 › Nov › 06 › Cooling System - Radiator Cap2
  - Relays and Modules - Cooling System › Radiator Cooling Fan Motor Relay › Component Information › Locations
  - Sensors and Switches - Cooling System › Engine - Coolant Temperature Sensor/Switch6 pages
    Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations2 3
    Temperature Sensor (Gauge) › Component Information › Description and Operation2 3
  - Temperature Gauge › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13
  - Thermostat, Engine Cooling › Component Information › Specifications › Mechanical Specifications2
  - Water Pump › Component Information › Specifications2 3 4 5 6 7 8 9 10
- Exhaust System15 pages
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections