See also:

Ford Sierra Service Manual
...

Cooling, heating and air conditioning systems
General information and precautions General information The cooling system is of pressurised type, and consists of a front mounted radiator, coolant pump, cooling fan, wax type thermostat, and an ...

Fuel pump - testing
1 If the fuel pump is functioning, it should be possible to hear it “buzzing” by listening under the rear of the vehicle when the ignition is switched on. Unless the engine is started, the fuel pu ...