In the event that you are aware of abnormal symptoms on your automobile, you are right to be worried, because a car represents a big annual budget and unpredicted breakdowns don’t lower the expenses. So what if you find that you have a leaking injector on your Ford Mondeo 4? You probably figured it out thanks to black/oily drips along your engine, or a disturbed idle, or uncommon black smoke. These three manifestations are the main symptoms of a leaking injector. As this failure can bring on more significant engine complications on your car, we thought we would publish this content page to help you ensure the failure of a leaking injector and handle it correctly. To accomplish this, we will initially look into the case of gasoline injectors and then at those of diesel injectors Ford Mondeo 4.
Leaking injector on my petrol Ford Mondeo 4
It is essential to know that the injectors on petrol and diesel engines are different, actually, the difference in combustion between these two kind of engines makes the injection different. The main difference lies in the pressure undergone by the injectors, on a petrol engine it will vary between 3.5 bars for indirect injection and 120 bars for indirect injection.
Leaking injector on a petrol Ford Mondeo 4: The different leaks
It should be known that injector leaks on a Ford Mondeo 4 equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. However, there are two kind of leaks:
- Leakage from the top of the injector:
It is possible that you have a leak from the top of the injector, this is the portion that is connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may suffer a leak coming from the lower portion of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Ford Mondeo 4
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system creates very high pressure in the engine, as do the injectors. On these models, the pressure is more than 10 times higher than on the direct injection of car petrol engines, reaching 1800 to 2000 bars.
Leaking injector on diesel Ford Mondeo 4: The different leaks
In the case of leaking diesel injectors on your Ford Mondeo 4, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform after a while, in most cases the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Ford Mondeo 4 will be a consequence of an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most bothersome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should feel an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we encourage you to consult this content page on the presence of oil leaking on your Ford Mondeo 4.
Leaking injector on my Ford Mondeo 4, how to fix the leak
And finally, we’re going to look into how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen prior to this, to a worn seal due to the pressures endured. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is completed…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Concerning the repair part of your leak, it will very often be limited to swapping the seals that have failed:
- Discover the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the set up and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not automatically difficult, but if you have the slightest hesitation in the treatment of your injector that leaks on your Ford Mondeo 4, we encourage you to get closer to your mechanic to avoid any bad manipulation that could seriously harm the condition of your Ford Mondeo 4.
If you have any further questions about the Ford Mondeo 4, do not hesitate to consult our Ford Mondeo 4 category.
