In cases where you are aware of irregular symptoms on your car, you are right to be worried, because a car represents a massive annual budget and surprising breakdowns don’t reduce the costs. So what if you think that you have a leaking injector on your Hyundai Ioniq? You likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unusual black smoke. These three signs of illness are the main symptoms of a leaking injector. As this troubles can bring about more significant engine trouble on your car, we decided to prepare this article content to help you validate the failure of a leaking injector and deal with it properly. To accomplish this, we will first look at the circumstance of gasoline injectors and then at those of diesel injectors Hyundai Ioniq.


Leaking injector on my petrol Hyundai Ioniq

It is essential 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 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 Hyundai Ioniq: The different leaks

It should be known that injector leaks on a Hyundai Ioniq equipped with a petrol engine are pretty infrequent. 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 plausible that you have a leak from the top of the injector, this is the portion 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 come from the junction with the engine and not with the rail as seen previously.

Leaking injector on my diesel Hyundai Ioniq

Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Hyundai Ioniq: The different leaks

In the circumstance of leaking diesel injectors on your Hyundai Ioniq, there are three different sort 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Ioniq 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 encounter an air noise and a compression loss.
  • If after checking you have oil leaking but it does not come from your injectors, we encourage you to read this article content on the existence of oil leaking on your Hyundai Ioniq.

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

And to finish, we’re going to look at how to fix a leaking injector on your car. Frequently a leak is associated, 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 achieved…
  • 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 oftentimes be restricted to replacing 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 respect with the manufacturer’s standards.

In all cases, these interventions are not necessarily difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Hyundai Ioniq, we encourage you to get closer to your auto technician to avoid any bad handling that could seriously harm the condition of your Hyundai Ioniq.

To discover more tips on the Hyundai Ioniq, take a look at the Hyundai Ioniq category.