Cooling System Diagram (engine 2.7 l).
Checking the tightness of the cooling system
1. Make sure the coolant level reaches the radiator filler neck.
2. Connect a radiator cap valve tester to the radiator filler neck and apply a pressure of 150 kPa. Holding the specified pressure for 2 minutes, check for coolant leaks from the radiator, hose connections, or the cooling system hoses themselves.
Note:
- Thoroughly remove moisture from the surface of all parts being checked for leaks.
- When removing the radiator cap valve tester from the radiator neck, be careful not to splash coolant.
- When connecting and disconnecting the tester, as well as during the test, be careful not to deform the radiator filler neck.
3. If there are leaks, repair or replace the related part.
Checking the Radiator Cap
Note: Make sure the radiator cap is clean before checking. as rust or other foreign matter on the cover gasket may cause the pressure gauge to read incorrectly.
1. Check the radiator cap for damage, cracks and seal deterioration (wear etc..).
2. Connect the radiator cap to a special tester.
3. Change the pressure until the pressure gauge needle stops (valve opening pressure).
Rated value:
- Valve opening pressure:
- Engine 2.0L/2.4L: 86.1-124.5 kPa
- 2.7L engine: 93.2-122.6 kPa
- Valve closing pressure: 83.4 kPa
4. If the pressure gauge needle remains stationary for 10 seconds at a pressure value exceeding the maximum allowable valve actuation pressure, then the radiator cap is in good condition.
5. Replace the radiator cap if the valve opening pressure is below the nominal value.