Vehicle fuel system Ford Focus Turnier 1

General information about the fuel system
With moderate fuel consumption, the Focus is a rare guest at the petrol station. Models with petrol engines burn Euro-Super petrol, the Focus DI is filled with diesel...

The most important structural components of the fuel supply system
Fuel pump: the Ford Focus has an electric fuel supply pump installed in the fuel tank. The pump and fuel level sensor form a single unit. The high-pressure valve in the...

Fuel — General Information and Savings
All Ford Focus petrol engines require Euro Super petrol (ROZ 95). But they can also be filled with Super Plus petrol (ROZ 98). It makes sense to fill up with Super Plus...

Checking the fuel tank ventilation
Warm up the engine (operating temperature), then let it idle. Disconnect the vacuum hose from the carbon filter from the solenoid valve. Check the valve connector for...

Replacing the fuel filter (petrol engine)
Remove the fuse - fuel pump. Start the engine and let it idle until it stops. To ensure that the fuel supply pressure has actually dropped, crank the engine with the...

Replacing the fuel filter (diesel engine)
Disconnect the battery (ground cable). Remove the fuel supply line (marked in white) and the fuel drain line (marked in red) from the filter. Remove the pipes Remove the...

Draining fuel from the fuel tank using a hand 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 can't just let the fuel drain. If...

Dismantling of pipelines and hoses
Be careful: the fuel injection system remains under pressure (see pressure valve) for a long time after the engine is switched off. Therefore, always have a rag at hand...

Troubleshooting a Fuel Pump
The electric fuel pump is supplied with voltage by a relay. Starting from the engine start-up phase, the pump supplies fresh fuel to the injectors. The second relay...

Removing the fuel pump (petrol engine)
Disconnect the battery ground cable. Drain the fuel from the fuel tank and remove it from underneath the vehicle. Remove the fuel supply and return lines and the power...

Description of the exhaust system design
Exhaust systems were originally supposed to "only" reduce the noise of the combustion process in the engine and release exhaust gases into the atmosphere in an orderly...

Tips for working on the exhaust system
Oxidized sheet metal cannot be welded firmly. Therefore, the success of repairing a rusted exhaust system is often short-lived. Exhaust putty and bandages last a little...

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

Replacement of the exhaust system, including the catalytic converter
Our instructions describe the removal of the exhaust system assembly - using the example of the Zetec-E 1.8/2.0 l engines - from front to back. If you are replacing only...

Concepts related to exhaust gases
Carbon monoxide (CO): measured during the study of the exhaust gas composition Precise control of the amount of injected fuel, homogeneous mixing of the fuel-air mixture...

Reducing toxicity of exhaust gases
Fuel mainly consists of carbon and hydrogen. When burned in an engine, carbon combines with atmospheric oxygen to form carbon dioxide (CO2), hydrogen (H), combining with...