Section 84 (Engine Cooling System): Radiator: Inspection

WARNING: This page is about a different car, the 2003 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

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.