Vehicle fuel system Ford Focus Turnier 1

General information about the fuel system
With moderate fuel consumption, the Focus is a rare visitor to the gas station. Models with petrol engines burn Euro-Super petrol, Focus DI refuels with diesel fuel. The...

The most important structural components of the fuel supply system
Fuel pump: The Ford Focus has an electrically driven fuel feed pump installed in the fuel tank. The pump and the fuel level sensor form a single unit. An overpressure...

Fuel — general information and savings
All Ford Focus gasoline engines require Euro Super gasoline (ROZ 95). But they can also be filled with Super Plus petrol (ROZ 98). It makes sense to fill Super Plus when...

Checking the ventilation of the fuel tank
Warm up the engine (operating temperature), then start at idle. Disconnect the vacuum hose coming from the carbon filter from the solenoid valve. Check the valve...

Fuel filter replacement (petrol engine)
Remove the fuse - fuel pump. Start the engine, let it idle until it stops. To make sure that the pressure in the fuel supply line has really dropped, crank the engine...

Fuel filter replacement (diesel engine)
Disconnect the battery (ground wire). Dismantle the supply filter (marked in white) and fuel drain line (marked in red). Remove pipelines Dismantle the fuel filter, to...

Draining fuel from the fuel tank with a manual pump
The Focus fuel tank does not have a drain plug. Since the suction line and recirculation line are located on top of the fuel tank, you cannot simply let the fuel drain....

Dismantling pipelines and hoses
Be careful: the injection fuel system is pressurized (see discharge valve) for a long time after the engine has been switched off. Therefore, always have a rag ready...

Troubleshooting the fuel pump
The voltage to the electric fuel pump is supplied by the relay. Starting from the engine start phase, the pump delivers fresh fuel to the injectors. The second relay...

Removing the fuel pump (petrol engine)
Disconnect the battery ground wire. Drain the fuel from the fuel tank and dismantle under the vehicle. Dismantle the fuel supply and return lines, as well as connections...

Exhaust system design description
Exhaust systems were originally supposed to «only» to reduce the noise of the combustion process in the engine and to discharge exhaust gases in an orderly manner into...

Exhaust system tips
Oxidized sheet metal cannot be welded firmly. Therefore, the success of repairing a rusted exhaust system is most often transient. Exhaust putty and bands last a little...

Exhaust system check
The exhaust system is firmly screwed to the exhaust manifold. On the bottom of the car, it is freely suspended on rubber loops. Check rubber jumper loops (arrow) for...

Exhaust system replacement including catalytic converter
Our instruction describes the dismantling of the exhaust system assembly - using the Zetec-E 1.8 / 2.0 L engines as an example - from front to back. If you only replace...

Concepts related to exhaust gases
Carbon monoxide (SO): measured by examining the composition of exhaust gases Precise control of the amount of injected fuel, homogeneous mixing of the air-fuel mixture...

Reduced exhaust emissions
The fuel is mainly composed of carbon and hydrogen. When burned in an engine, carbon combines with atmospheric oxygen to form carbon dioxide (CO2), hydrogen (H), by...