xnickx wrote:If it happens its air stuck in the water system.
You will need to burp the system to ensure the air bubble doesnt get stuck somewhere and cook your engine!
Park your car somewhere flat
Undo the radiator cap (when car is cold)
Turn the heater on to full heat (HOT) and fans to MAX
Let the car idle till the water temp has warmed up
Top up any coolant that goes down in the radiator from the bubbles that pop up.
Then just refit the radiator cap.
Heaters work with the coolant so turning the heaters on will just ensure the whole water system is flowing, and warming the car up just ensures the thermostat opens so that again, the whole water system is flowing, the bubbles of trapped air in the system will come out at the radiator as its the highest point of the cooling system.
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