Engine Cooling System: Radiator: Inspection

Remove the radiator cap, top off radiator, and attach tester to the radiator in place of cap.
- NON-TURBO MODEL
  
  Fig 1: Attaching Pressure Tester To Radiator In Place Of Cap (Non-Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
- TURBO MODEL
  
  Fig 2: Attaching Pressure Tester To Radiator In Place Of Cap (Turbo Model)
  Courtesy of SUBARU OF AMERICA, INC.
Apply a pressure of 157 kPa (1.6 kg/cm² , 23 psi) to the radiator to check if:
1. Engine coolant leaks at/around radiator.
2. Engine coolant leaks at/around hoses or connections.
CAUTION:
- Engine should be off.
- Wipe engine coolant from check points in advance.
- Be careful to prevent engine coolant from spurting out when removing tester.
- Be careful also not to deform filler neck of radiator when installing or removing tester.