Ford Sierra Service Manual

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Manifold Absolute Pressure (MAP) sensor - removal and refitting
Removal 1 Disconnect the battery negative lead. 2 Disconnect the sensor wiring plug. Do not pull on the wiring. 3 Disconnect the vacuum hose from the sensor. 4 Remove the two securing screws and ...

Distributor lubrication - models with contact breaker distributor (Every 6000 miles or 6 months)
1 Remove the distributor cap and the rotor arm. 2 Apply a couple of drops of light oil to the felt pad in the top of the shaft. 3 Wipe clean the distributor cam, then apply a trace of high meltin ...

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 ...