Engine Cooling System: Other Subaru Impreza GD/GC/GG рестайлинг

CAUTION

1. Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
2. Remove contamination including dirt and corrosion before removal, installation or disassembly.
3. Keep the disassembled parts in order and protect them from dust or dirt.
4. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
5. Be careful not to burn your hands, because each part in the vehicle is hot after running.
6. Be sure to tighten fasteners including bolts and nuts to the specified torque.
7. Place shop jacks or safety stands at the specified points.
8. Before disconnecting electrical connectors of sensors or units, be sure to disconnect negative terminal from battery.

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Condition

1. Engine coolant temperature is above 95°C (203°F).
2. Vehicle speed is below 19 km/h (12 MPH).

1. Engine coolant temperature is above 96°C (205°F).
2. A/C compressor is rotated.
3. Vehicle speed is below 19 km/h (12 MPH).

NON-TURBO MODEL

Note. System for A/C equipped vehicles only.

Condition (1)

1. Engine coolant temperature is below 95°C (203°F).
2. A/C switch is turned ON.
3. Vehicle speed is below 19 km/h (12 MPH).

Condition (2)

1. Engine coolant temperature is above 100°C (212°F).
2. A/C switch is turned OFF.
3. Vehicle speed is below 19 km/h (12 MPH).

1. Engine coolant temperature is above 96°C (205°F).
2. A/C compressor is rotated.
3. Vehicle speed is below 19 km/h (12 MPH).

RELATIONSHIP OF SUBARU COOLANT CONCENTRATION AND FREEZING TEMPERATURE

The concentration and safe operating temperature of the SUBARU coolant is shown in the diagram. Measuring the temperature and specific gravity of the coolant will provide this information.

[ Example ]

If the coolant temperature is 25°C (77°F) and its specific gravity is 1.054, the concentration is 45% (point A), the safe operating temperature is -14°C (7°F) (point B), and the freezing temperature is - 20°C (-4°F) (point C).

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TURBO MODEL

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1. Set the vehicle on the lift.
2. Disconnect the battery ground cable.
3. Lift-up the vehicle.
4. Remove the under cover.
5. Drain the engine coolant completely. See «DRAINING OF ENGINE COOLANT»(ref-180110-S14725639022005072100000) , Replacement, Engine Coolant.
6. Remove the radiator under cover. (AT vehicles only)
7. Disconnect the connectors of radiator main fan (A) and sub fan motor (B).
8. Disconnect the ATF cooler hoses from the radiator. (AT vehicles only)
9. Disconnect the radiator outlet hose from the thermostat cover.
10. Lower the vehicle.
11. Remove the air intake duct.
12. Disconnect the over flow hose.
13. Remove the reservoir tank.
14. Remove the V-belt covers.
15. Disconnect the radiator inlet hose (A) and coolant filler tank hose (B) from the radiator.
16. Remove the radiator upper brackets.
17. While slightly lifting radiator, slide it to left.
18. Lift the radiator up and away from the vehicle.

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1. Attach the radiator mounting cushions to holes on the vehicle.
2. Install the radiator while fitting radiator pins to cushions. NOTE: Fit pins on lower side of radiator into cushions on body side.
3. Install the radiator brackets and tighten the bolts. Tightening torque: 18 N.m (1.8 kgf.m, 13.0 ft.lb)
4. Attach the power steering hose to the radiator.
5. Connect the radiator inlet hose.
6. Install the reservoir tank. Tightening torque: 4.9 N.m (0.50 kgf.m, 3.6 ft.lb)
7. Lift-up the vehicle.
8. Connect the radiator outlet hose (A).
9. Connect the ATF cooler hoses (B). (AT vehicles only)
10. Connect the connectors to the radiator main fan motor (A) and sub fan motor (B).
11. Install the under cover.
12. Lower the vehicle.
13. Connect the battery ground cable.
14. Fill engine coolant, see «FILLING OF ENGINE COOLANT»(ref-180110-S07004686282005072100000) , REPLACEMENT, Engine Coolant.
15. Check ATF level, see «INSPECTION»(ref-174973-S39669496542005041300000) , ATF.

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1. Attach the radiator mounting cushions to holes on the vehicle.
2. Install the radiator brackets and tighten bolts. Tightening torque: 18 N.m (1.8 kgf.m, 13.0 ft.lb)
3. Connect the radiator inlet hose (A) and coolant filler tank hose (B).
4. Install the reservoir tank. Tightening torque: 4.9 N.m (0.50 kgf.m, 3.6 ft.lb)
5. Connect the over flow hose.
6. Lift-up the vehicle.
7. Connect the connectors to the radiator main fan motor (A) and sub fan motor (B).
8. Connect the ATF cooler hoses. (AT vehicles only)
9. Connect the radiator outlet hose.
10. Install the radiator under cover. (AT vehicle only)
11. Install the under cover.
12. Lower the vehicle.
13. Install the V-belt covers.
14. Install the air intake duct.
15. Connect the battery ground cable.
16. Fill engine coolant, see «FILLING OF ENGINE COOLANT»(ref-180110-S07004686282005072100000) , REPLACEMENT, Engine Coolant.

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1. Remove the radiator cap, top off radiator, and attach tester to the radiator in place of cap. NON-TURBO MODEL TURBO MODEL
2. Apply a pressure of 157 kPa (1.6 kg/cm 2 , 23 psi) to the radiator to check if: Engine coolant leaks at/around radiator. Engine coolant leaks at/around hoses or connections. CAUTION: Engine should be off. Wipe engine coolant from check points in advance. Be careful to prevent engine coolant from spurting out when removing tester. Be careful also not to deform filler neck of radiator when installing or removing tester.

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1. Attach the radiator cap to the tester.
2. Increase pressure until the tester gauge pointer stops. Radiator cap is functioning properly if it holds the service limit pressure for five to six seconds. Standard pressure: 93-123 kPa (0.95-1.25 kg/cm 2 , 14-18 psi) Service limit pressure: 83 kPa (0.85 kg/cm 2 NOTE: Be sure to remove foreign matter and rust from the cap in advance otherwise, results of pressure test will be incorrect.

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1. Disconnect the battery ground cable.
2. Lift-up the vehicle.
3. Remove the under cover.
4. Remove the radiator under cover. (AT vehicle only)
5. Disconnect the connector of main fan motor (A).
6. Lower the vehicle.
7. Remove the air intake duct. (Turbo model)
8. Disconnect the over flow hose.
9. Remove the over flow pipe. (Turbo model)
10. Remove the reservoir tank.
11. Remove the radiator main fan motor assembly.