If you are alert of abnormal symptoms on your vehicle, you are right to be concerned, because a car represents a huge annual budget and surprising malfunctions don’t lower the expenses. So what if you feel as if you have a leaking injector on your Ford Focus C-max? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or abnormal black smoke. These three manifestations are the main signs of a leaking injector. As this problem can lead to more significant engine concerns on your car, we made a decision to produce this content to help you ensure the failure of a leaking injector and treat it properly. To accomplish this, we will initially check out the case of gasoline injectors and then at those of diesel injectors Ford Focus C-max.
Leaking injector on my petrol Ford Focus C-max
It is fundamental to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two kind of engines makes the injection different. The biggest 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 Focus C-max: The different leaks
It should be noted that injector leaks on a Ford Focus C-max equipped with a petrol engine are rather infrequent. This is resulting from the much lower pressure in the petrol intake systems. Nevertheless, 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 part 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 part 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 Focus C-max
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure generates 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 Focus C-max: The different leaks
In the case of leaking diesel injectors on your Ford Focus C-max, there are three several kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform as time passes, generally the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Ford Focus C-max 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 troublesome, 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 checking you have oil leaking but it does not come from your injectors, we recommend you to read this content on the existence of oil leaking on your Ford Focus C-max.
Leaking injector on my Ford Focus C-max, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Very often a leak is connected, as we have seen previously, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is completed…
- Covering you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Relating to the repair part of your leak, it will frequently be restricted to changing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Change 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 necessarily difficult, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Ford Focus C-max, we recommend you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Ford Focus C-max.
To discover more tips on the Ford Focus C-max, take a look at the Ford Focus C-max category.
