In cases where you are alert of irregular signs on your automobile, you are right to be worried, because a car represents a big annual budget and unpredicted malfunctions don’t lower the bill. So what if you feel like you have a leaking injector on your Citroen C3 Aircross? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three symptoms are the main indicators of a leaking injector. As this failure can cause more serious engine concerns on your car, we chose to compose this content page to help you validate the failure of a leaking injector and handle it properly. To achieve this, we will initially look into the circumstance of gasoline injectors and then at those of diesel injectors Citroen C3 Aircross.

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Leaking injector on my petrol Citroen C3 Aircross

It is vital to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two types of engines makes the injection different. The key difference lies in the pressure experienced 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 Citroen C3 Aircross: The different leaks

It should be mentioned that injector leaks on a Citroen C3 Aircross equipped with a petrol engine are rather infrequent. This is caused by the much lower pressure in the petrol intake systems. Nevertheless, there are two types 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 linked to the fuel rail, an O-ring will be involved in this.
  • Leak injector of the lower part:
    At last, you may experience a leak coming from the lower part of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen previously.

Leaking injector on my diesel Citroen C3 Aircross

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 Citroen C3 Aircross: The different leaks

In the circumstance of leaking diesel injectors on your Citroen C3 Aircross, there are three several types of leaks:

  • Leakage from the injector inlet:
    In this case, it is an inlet pipe that will deform over time, commonly the leak will be at the clamping point.
  • Injector return leakage:
    As its name implies, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Citroen C3 Aircross will be brought on by 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 encounter an air noise and a compression loss.
  • If after examining you have oil leaking but it does not come from your injectors, we suggest you to read this content page on the presence of oil leaking on your Citroen C3 Aircross.

Leaking injector on my Citroen C3 Aircross, how to fix the leak

And finally, we’re going to look into how to fix a leaking injector on your car. Very often a leak is linked, as we have seen prior to this, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some precautions:

  • 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 frequently be restricted to swapping the seals that have failed:

  • Find out the source of the leak
  • Take apart 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 inevitably complex, but if you have the smallest doubt in the treatment of your injector that leaks on your Citroen C3 Aircross, we suggest you to get closer to your motor mechanic to avoid any bad manipulation that could critically harm the condition of your Citroen C3 Aircross.

Whenever you have any further questions about the Citroen C3 Aircross, do not hesitate to consult our Citroen C3 Aircross category.