In the event that you are alert of unusual signs on your car, you are right to be preoccupied, because a car represents a big annual budget and surprising malfunctions don’t reduce the costs. So what if you think that you have a leaking injector on your Citroen C5 Aircross? You almost certainly figured it out thanks to black/oily drips along your engine, or a troubled idle, or unconventional black smoke. These three symptoms are the main signs of a leaking injector. As this problem can bring on more severe engine trouble on your car, we decided to write this content to help you ensure the failure of a leaking injector and deal with it correctly. To accomplish this, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Citroen C5 Aircross.

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Leaking injector on my petrol Citroen C5 Aircross

It is fundamental to know that the injectors on petrol and diesel engines are different, the truth is, the difference in combustion between these two types of engines makes the injection different. The biggest 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 C5 Aircross: The different leaks

It should be mentioned that injector leaks on a Citroen C5 Aircross equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. Even so, 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 component that is attached 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 appear from the junction with the engine and not with the rail as seen previously.

Leaking injector on my diesel Citroen C5 Aircross

Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Citroen C5 Aircross: The different leaks

In the circumstance of leaking diesel injectors on your Citroen C5 Aircross, there are three several types of leaks:

  • Leakage from the injector inlet:
    In this case, it is an inlet pipe that will deform along with time, usually 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 C5 Aircross will be the result 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 experience an air noise and a compression loss.
  • If after examining you have oil leaking but it does not come from your injectors, we recommend you to browse this content on the existence of oil leaking on your Citroen C5 Aircross.

Leaking injector on my Citroen C5 Aircross, how to fix the leak

And to finish, we’re going to check out how to fix a leaking injector on your car. Regularly a leak is connected, as we have seen sooner, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some measures:

  • Lower the pressure before any work is carried out…
  • Masking 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 oftentimes be restricted to changing the seals that have failed:

  • Find out the source of the leak
  • Dismantle the injector in question
  • Change the corresponding seal kit
  • Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.

In all situations, these interventions are not automatically complicated, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Citroen C5 Aircross, we recommend you to get closer to your repair shop to avoid any bad handling that could critically harm the condition of your Citroen C5 Aircross.

If perhaps you have any further questions about the Citroen C5 Aircross, do not hesitate to consult our Citroen C5 Aircross category.