1. Check that the radiator does not have deformation, cracks or damage.
2. Make sure the hoses are not cracked, damaged or loose.
3. Remove the radiator cap, fill the radiator with engine coolant, and then install the radiator cap tester to the filler neck of radiator.
4. Apply a pressure of 157 kPa (1.6 kgf/cm2, 23 psi) to the radiator, and check the following items.
• Leakage from the radiator or its vicinity
• Leakage from the hose or its connections
CAUTION:
• Engine should be turned off.
• Wipe engine coolant from check points in advance.
• Be careful of engine coolant from spurting out when removing the radiator cap tester.
• Be careful not to deform the filler neck of radiator when installing and removing the radiator cap tester.