Manifolds, exhaust and emission control systems

All models utilise a light alloy inlet manifold which on carburettor models is coolant heated to improve the atomisation of the fuel/air mixture.

The exhaust manifold is of cast iron construction and incorporates a heated air box as part of the air inlet system on carburettor models.

See also:

Ford Sierra Service and Repair Manual
Introduction to the Ford Sierra The Ford Sierra was first introduced in late 1982 with the option of seven different engines and four different trim levels. This manual covers the four cylinder in- ...

Ignition system component check (Every 24 000 miles (40 000 km) or 2 years)
1 Before disturbing any part of the ignition system, disconnect the battery negative lead. 2 Identify and clearly mark all HT leads before disconnecting them from the spark plugs. 3 Refer to the a ...

General information and precautions
The body electrical system consists of all lights, wash/wipe equipment, interior electrical equipment, and associated switches and wiring. The electrical system is of the 12 volt negative earth t ...