Engine Coolant Leakage Inspection

WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the coolant level.
Remove the radiator cap.
Connect a radiator cap tester and the SST to the radiator filler neck.
CAUTION:
- Applying more than 123 kPa {1.25 kgf/ cm² , 17.8 psi} can damage the hoses, fittings, and other components, and cause leaks.
Apply pressure to the radiator.
Pressure

123 kPa {1.25 kgf/cm ² , 17.8 psi}

Fig 1: Inspecting Engine Coolant Leakage
Courtesy of MAZDA MOTORS CORP.
Verify that the pressure is held.
- If not, inspect the system for coolant leakage.