Originally Posted by Hamwich
Originally Posted by IvorMog

In the winter, to warm the engine up quicker, close the water valve thus removing the cooling effect of the heater matrix.


If your themostat is working correctly, there's no need. Water shouldn't circulate through the cooling system until the engine is properly warm.


It does because it's part of the bypass circuit with it's own branch off the thermostat housing on the double acting Zetec cooling system. (IIRC)

Bob

2009 Black Roadster
1999 4/4 2 litre Zetec