Engine Coolant Leakage Inspection

ENGINE COOLANT LEAKAGE INSPECTION [L3]

WARNING:
- Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
- Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes.
- When you are sure all the pressure is gone, press down on the cap using the cloth, turn it, and remove it.

1. Inspect the engine coolant level. Engine Coolant Level Inspection

2. Remove the cooling system cap.

3. Clean the installation parts of the cooling system cap and the upper radiator hose.

4. Install the SST and a radiator cap tester to the cooling system filler neck.






5. Apply pressure using the radiator cap tester.

CAUTION:
- Applying more than 122.6 kPa {1.25 kgf/cm2, 17.8 psi} can damage the hoses, fittings, and other components, and cause leakage.

Pressure
- 122.6 kPa {1.25 kgf/cm2, 17.8 psi} [1 min]

6. When pressurizing the cooling system, verify that the pressure is maintained.

- If the gauge needle drops, it may indicate water leakage, therefore perform leakage inspection.

- If engine coolant leaks from the upper hose installation part, replace the upper hose and the clamp.

- If the engine coolant leaks from the main body of the radiator (caulked part), replace the radiator.