1. Remove the coolant filler tank cap, fill the coolant filler tank with engine coolant, then install the tester to the installation position of the cap.
2. Apply a pressure of 122 kPa (1.2 kgf/cm2, 18 psi) to the radiator, and check the following items.
• Leakage from the radiator or its vicinity
• Leakage from the hose or its connections
CAUTION:
• Inspection must be carried out at the side of coolant filler tank, not at the side of radiator.
• Engine should be turned off.
• Wipe engine coolant from check points in advance.
• Be careful of the spurt of engine coolant when removing the tester.
• Be careful not to deform the filler neck of the coolant filler tank when installing and removing the tester.