COOLING SYSTEM CAP INSPECTION

Warning

• Never remove the radiator cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.

• Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick clean rag around it and slowly turn it counterclockwise to the first stop. Step back while the pressure escapes. When you are sure all the pressure is gone, press down on the cap using the clean rag, turn it, and remove it.

1. Attach the cooling system cap to the SST.

2. Hold the cooling system cap downward and apply pressure gradually.

• If the pressure is maintained for approx. 10 s within the specification, the cooling system cap is normal.

- If there is any malfunction, replace the cooling system cap.

Standard [YF (2.0L Zetec)]

89-124 kPa {0.91-1.26 kgf/cm², 13.0-17.9 psi}

Standard [L3, AJ (3.0L Duratec)]

L.H.D.: 120-150 kPa {1.23-1.52 kgf/cm², 17.5-21.7 psi}

R.H.D.: 94-122 kPa {0.96-1.24 kgf/cm², 13.7-17.6 psi}