Ford Sierra Service Manual
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Idle speed control valve - removal and refitting
Note: A new gasket must be used when
refitting the valve.
2.0 litre SOHC models
1 Disconnect the battery negative lead.
2 Disconnect the idle speed control valve
wiring plug by releasing the reta ...
Thermostat - removal and refitting
1 Disconnect the battery negative lead.
2 Drain the cooling system.
3 Proceed as follows according to model:
SOHC models
4 Disconnect the radiator top hose and
expansion tank hose from the thermo ...
Ignition timing (OHC models) - adjustment
Note: During production the ignition timing is
accurately set using a microwave process,
and sealant is applied to the distributor clamp
bolt. Because the electronic components
require no maintena ...
