In the event you are informed of irregular symptoms on your automobile, you are right to be preoccupied, because a car represents a big annual budget and unexpected malfunctions don’t reduce the bill. So what if you find that you have a leaking injector on your Dacia Duster 2? You probably figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unusual black smoke. These three symptoms are the main signals of a leaking injector. As this troubles can bring on more significant engine problems on your car, we made a decision to compose this content page to help you ensure the failure of a leaking injector and deal with it properly. To achieve this, we will initially take a look at the case of gasoline injectors and then at those of diesel injectors Dacia Duster 2.

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Leaking injector on my petrol Dacia Duster 2

It is important to know that the injectors on petrol and diesel engines are distinct, the reality is, the difference in combustion between these two types of engines makes the injection distinct. 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 Dacia Duster 2: The different leaks

It should be said that injector leaks on a Dacia Duster 2 equipped with a petrol engine are rather rare. 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 plausible that you have a leak from the top of the injector, this is the component 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 come from the junction with the engine and not with the rail as seen before.

Leaking injector on my diesel Dacia Duster 2

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 Dacia Duster 2: The different leaks

In the case of leaking diesel injectors on your Dacia Duster 2, there are three different types of leaks:

  • Leakage from the injector inlet:
    In this instance, it is an inlet pipe that will deform along with time, in most cases the leak will be at the clamping point.
  • Injector return leakage:
    As its name suggests, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Dacia Duster 2 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 bothersome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should find an air noise and a compression loss.
  • If after examining you have oil leaking but it does not come from your injectors, we advise you to read this content page on the existence of oil leaking on your Dacia Duster 2.

Leaking injector on my Dacia Duster 2, how to fix the leak

And finally, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is linked, 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 monumental, especially on diesel engines. So you will have to take some precautions:

  • Lower the pressure before any work is conducted…
  • 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 regularly be limited to replacing the seals that have failed:

  • Situate 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 respect with the manufacturer’s standards.

In all cases, these interventions are not necessarily complex, but if you have the tiniest doubt in the treatment of your injector that leaks on your Dacia Duster 2, we advise you to get closer to your motor mechanic to avoid any bad handling that could critically harm the condition of your Dacia Duster 2.

If you wish more guides on the Dacia Duster 2, go to our Dacia Duster 2 category.