Whenever you are aware of abnormal symptoms on your car, you are right to be worried, because a car represents a huge annual budget and unforeseen breakdowns don’t reduce the expenses. So what if you think that you have a leaking injector on your Citroen Cactus? You most likely figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or abnormal black smoke. These three signs of illness are the main signals of a leaking injector. As this troubles can cause more serious engine trouble on your car, we decided to publish this article content to help you verify the failure of a leaking injector and treat it properly. To accomplish this, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Citroen Cactus.

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Leaking injector on my petrol Citroen Cactus

It is vital to know that the injectors on petrol and diesel engines are distinct, the reality is, the difference in combustion between these two sort of engines makes the injection distinct. The essential 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 Cactus: The different leaks

It should be noted that injector leaks on a Citroen Cactus equipped with a petrol engine are rather infrequent. This is caused by the much lower pressure in the petrol intake systems. Even so, there are two sort of leaks:

  • Leakage from the top of the injector:
    It is plausible that you have a leak from the top of the injector, this is the part that is attached to the fuel rail, an O-ring will be involved in this.
  • Leak injector of the lower part:
    Finally, you may experience 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 Citroen Cactus

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 Cactus: The different leaks

In the circumstance of leaking diesel injectors on your Citroen Cactus, there are three different sort of leaks:

  • Leakage from the injector inlet:
    In this case, it is an inlet pipe that will deform after a while, generally the leak will be at the clamping point.
  • Injector return leakage:
    As its name implies, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Citroen Cactus 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 annoying, 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 advise you to consult this article content on the existence of oil leaking on your Citroen Cactus.

Leaking injector on my Citroen Cactus, how to fix the leak

And at last, we’re going to look into how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen previously, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some measures:

  • Lower the pressure before any work is conducted…
  • Covering you to avoid the risk of fuel spillage
  • NEVER work on a running diesel engine injector.

Regarding the repair part of your leak, it will regularly be restricted to changing the seals that have failed:

  • Discover the source of the leak
  • Take apart the injector in question
  • Replace 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 necessarily complex, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Citroen Cactus, we advise you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Citroen Cactus.

If you need more tutorials on the Citroen Cactus, go to our Citroen Cactus category.