Fuel injection system of car Ford Mondeo 3

Fuel injection system device
Under the engine hood of a modern car in the intake tract of gasoline engines has long been «set the tone» electronic fuel injection systems. On the exhaust gas side,...

Sometimes it is rational to carry out a visual inspection of the injection system
From time to time check the routed hoses and their connections for correct fit and fatigue cracks: Vacuum hose to absolute pressure sensor. Brake booster vacuum hose....

Checking the intake system for leaks
PROCEDURE Check vacuum hoses for cracks and good fit. Also check all injection or intake manifold hoses (absolute pressure sensor, brake booster, fuel mixture...

Idling speed check
Rotational speed at idle, depending on the switched on consumer (e.g. headlights, air conditioning or power steering), is constantly corrected by the engine control...

Fluctuations at idle — a systematic phenomenon
If the battery has been disconnected, then the on-board computer needs approximately eight kilometers to bring itself into «sportswear». This time is required in order...

Checking the idle control valve
PROCEDURE Start the engine at «constant gas». Turn on as many current consumers as possible (AC, lighting, fan, heated rear window, etc) and turn the steering wheel from...

Injector test
PROCEDURE A defective injector sometimes exposes itself already at idle by applying to it «bare hand»: it doesn't vibrate - unlike the others. Not to «fry» your fingers,...

Replacing the thrust of the gas pedal (using the example of Duratec-HE)
PROCEDURE Dismantle the intake hose between the air filter and the engine. To do this, release two clamps (indicated by arrows) and remove the hose. Removing the intake...

Diesel engine fuel supply — basic design
In contrast to gasoline engines, injection systems in diesel engines operate with high system pressures. Fuel pumps, including the control peripherals, are fundamentally...

Visual inspection of the diesel injection system
PROCEDURE Check all pressure pipes - and not just their connections - for tightness and... ...check also the drain pipes. Next, check the sealing of the housing cover of...