I am wantin to flush my engine and radiator. When the flushing is done and I begin refilling do I have to worry about trapped air? Should I remove the Temp Sensor as a point for air to escape? Manual says to do this on the 2.6 but does not say to do it on the 2.3. What is the best way to do this procedure step by step and not worry about trapped air causing overheating problems