Pressure Testing the Pressure Cap

- Tools Required
- J 24460-01 Cooling System Tester

Caution: Refer to Radiator Cap Removal Caution in Service Precautions.

The vehicle is equipped with an aluminum radiator. Use the outlined instructions in order to remove the cap. Refer to Draining and Filling Cooling System:
1. Remove the cap.
2. Wet the radiator cap gasket with water.
3. Wash off any sediment from the sealing surface.
4. Install the cap to J24460-01.
5. Use the plunger handle of J24460-01 in order to increase the pressure as specified on the cap.
6. Note the rate of decrease in the pressure.
7. The specified reading of the pressure should remain within the corresponding pressure scale for more than 10 seconds.
8. Replace the radiator cap if it does not maintain the pressure for more than 10 seconds.