Diagnosis And Testing: Inspection
WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
| 1 - Pressure Rating |
| 2 - Pressure Valve |
| 3 - Vacuum Vent Valve |
| 4 - Filler Neck Seal |
Inspect the radiator cap for the following:
- The pressure valve rubber gasket becomes swollen, or foreign particles lodged in the main spring. This will prevent the vent valve from opening. Replace the cap.
- If the rubber seal are damaged or swollen. Replace the cap.
- A replacement cap must be the same type that is rated for the cooling system.