In cases where you are aware of irregular symptoms on your car, you are right to be preoccupied, because a car represents a big annual budget and unexpected malfunctions don’t reduce the expenses. So what if you feel as if you have a leaking injector on your Dodge Durango? You probably figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or strange black smoke. These three manifestations are the main signs of a leaking injector. As this problem can bring on more significant engine concerns on your car, we thought we would publish this content to help you verify the failure of a leaking injector and deal with it properly. To achieve this, we will first check out the case of gasoline injectors and then at those of diesel injectors Dodge Durango.

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Leaking injector on my petrol Dodge Durango

It is crucial to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two kind of engines makes the injection distinct. The essential 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 Dodge Durango: The different leaks

It should be known that injector leaks on a Dodge Durango equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. However, there are two kind of leaks:

  • Leakage from the top of the injector:
    It is conceivable that you have a leak from the top of the injector, this is the part that is linked 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 sooner.

Leaking injector on my diesel Dodge Durango

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 Dodge Durango: The different leaks

In the case of leaking diesel injectors on your Dodge Durango, there are three different kind of leaks:

  • Leakage from the injector inlet:
    In this instance, it is an inlet pipe that will deform in the long run, usually the leak will be at the clamping point.
  • Injector return leakage:
    As its name reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Dodge Durango will be caused by 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 find 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 consult this content on the presence of oil leaking on your Dodge Durango.

Leaking injector on my Dodge Durango, 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 linked, as we have seen previously, to a worn seal caused by the pressures suffered. 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 done…
  • 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 regularly be restricted to swapping the seals that have failed:

  • Discover the source of the leak
  • Dismantle the injector in question
  • Replace 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 smallest doubt in the treatment of your injector that leaks on your Dodge Durango, we recommend you to get closer to your auto technician to avoid any bad handling that could critically harm the condition of your Dodge Durango.

If you have any further questions about the Dodge Durango, do not hesitate to consult our Dodge Durango category.