How do you remove an air lock out of the cooling system of a ford puma?

To remove an air lock from the cooling system of a Ford Puma, start by ensuring the engine is cool and the radiator cap is removed. Run the engine with the heater set to maximum; this allows coolant to circulate and helps dislodge trapped air. Gently squeeze the upper radiator hose to encourage the movement of air bubbles. Keep an eye on the coolant level, adding more if necessary, until you see a steady flow without air bubbles. Finally, replace the radiator cap securely.