In the event you are aware of irregular signs on your automobile, you are right to be concerned, because a car represents a massive annual budget and unexpected breakdowns don’t lower the costs. So what if you feel as if you have a leaking injector on your Hyundai Genesis? You probably figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unusual black smoke. These three manifestations are the main signs of a leaking injector. As this problem can lead to more serious engine complications on your car, we decided to publish this content page to help you ensure the failure of a leaking injector and deal with it properly. To do this, we will first take a look at the circumstance of gasoline injectors and then at those of diesel injectors Hyundai Genesis.


Leaking injector on my petrol Hyundai Genesis

It is fundamental to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two sort 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 Hyundai Genesis: The different leaks

It should be mentioned that injector leaks on a Hyundai Genesis equipped with a petrol engine are rather rare. This is caused by the much lower pressure in the petrol intake systems. However, there are two sort 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 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 appear from the junction with the engine and not with the rail as seen before.

Leaking injector on my diesel Hyundai Genesis

Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure produces 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 Hyundai Genesis: The different leaks

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

  • Leakage from the injector inlet:
    In this instance, it is an inlet pipe that will deform with time, in most cases the leak will be at the clamping point.
  • Injector return leakage:
    As its name suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Genesis will be a consequence 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 encounter an air noise and a compression loss.
  • If after checking you have oil leaking but it does not come from your injectors, we advise you to read this content page on the presence of oil leaking on your Hyundai Genesis.

Leaking injector on my Hyundai Genesis, how to fix the leak

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

  • 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 limited to changing the seals that have failed:

  • Find out 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 automatically very hard, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Hyundai Genesis, we advise you to get closer to your motor mechanic to avoid any bad manipulation that could seriously harm the condition of your Hyundai Genesis.

To find more tips on the Hyundai Genesis, take a look at the Hyundai Genesis category.