Engine Coolant Leakage Inspection

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the coolant level.
Remove the cooling system cap.
Connect a radiator cap tester and the SST to the reservoir filler port.
Apply specified pressure to the radiator.
Pressure
1. 123 kPa {1.25 kgf/cm2, 17.8 psi}
  
  Fig 1: Connecting Radiator Cap Tester To Reservoir Filler Port
  Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Applying more than 123 kPa {1.25 kgf/cm2, 17.8 psi} can damage the hoses, fittings, and other components, and cause leaks.
Verify that the pressure is held.
- If not, inspect the system for coolant leakage.