Cooling, heating and ventilation systems
The cooling system is of the pressurised pump-assisted thermo-syphon type. The system consists of the radiator, water pump, thermostat, electric cooling fan, expansion tank and associated hoses.
See also:
Routine maintenance and servicing
Ford Sierra maintenance schedule
The maintenance intervals in this manual
are provided with the assumption that you will
be carrying out the work yourself. These are
the minimum maintenance interv ...
Exhaust gas oxygen (HEGO) sensor (2.0 litre DOHC/1.6 & 1.8 litre (R6A type)
CVH) - removal and refitting
Note: Do not touch the tip of the HEGO
sensor as this will drastically shorten its
service life.
Note: A new sealing ring should be used on
refitting.
Removal
1 Ensure that the engine and the ex ...
Temperature gauge sender unit - removal and refitting
Note: Suitable jointing compound will be
required on refitting.
Removal
1 With the engine cold unscrew the pressure
cap on the thermostat housing or expansion
tank as applicable, then refit it. T ...
