Quote:
Originally Posted by T-Cut
It's caused by heat soak. When the engine's very hot and you turn it off, the head/block contains a residual lot of heat that can cause stagnant coolant to boil in the head. The resultant pressurisation will cause discarge through the header tank cap. To compensate, the cooling system is designed to run the radiator fan for up to ten minutes without the ignition. This chart gives all the parameters.
Note that this data is for the earlier 3-speed fan system. The later 2-speed does similar things.
TC
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Hi if I am reading the table right the fan should stay on for ten min above 115c. I have one of the ezze temp gauges and started beeping at 111c the fan stated brought the temp down to 97c. I switch off the engine and fan does not stay on.