Non-Trouble Code Procedures

Cooling System Leak Testing

Leak Testing Procedure (On Vehicle)

- Tools Required
- J 24460-01
- J 24460-92

Caution: Refer to Radiator High Pressure/Temperature Caution in Service Precautions. Refer to Hot Radiator Cap Caution in Service Precautions.

1. After the system has cooled, remove the surge tank pressure cap.





2. Connect the cooling system tester J 24460-01 and the J 24460-92 to the surge tank.
3. Apply normal system operation pressure. Do not exceed 138 kPa (20 psi).
4. Watch the gauge needle for an indication of a leak. Examine all cooling system connections and components, including the radiator and the heater core, for leaking coolant.
5. Tighten the hose connections or repair as required.





6. Check the surge tank cap with the J 24460-01 and the J 24460-92 in order to ensure the cap maintains the correct pressure.
7. If the radiator leaks during the pressure test, mark the leak area so the leak can be located once the radiator has been removed from the vehicle.