Impreza WRX STI F4-2.5L DOHC Turbo (2007)
Radiator: Testing and Inspection
Radiator
Inspection
1. Remove the coolant filler tank cap, top off coolant filler tank, and then attach the tester to coolant filler tank in place of cap.
2. Apply a pressure of 122 kPa (1.2 kgf/cm, 18 psi) to the coolant filler tank to check if:
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Engine coolant leaks at/around radiator.
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Engine coolant leaks at/around hoses or connections.
CAUTION:
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Inspection must be carried out at the side of coolant filler tank, not at the side of radiator.
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Engine should be turned off.
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Wipe engine coolant from check points in advance.
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If engine coolant adheres to the exhaust pipe, wipe it off completely.
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Be careful to prevent engine coolant from spurting out when removing the tester.
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Be careful also not to deform the filler neck of coolant filler tank when installing or removing tester.
