Whenever you are informed of abnormal signs on your vehicle, you are right to be preoccupied, because a car represents a huge annual budget and unpredicted malfunctions don’t reduce the costs. So what if you sense that you have a leaking injector on your Kia Picanto? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three manifestations are the main signals of a leaking injector. As this troubles can bring about more significant engine concerns on your car, we thought we would write this article content to help you verify the failure of a leaking injector and treat it properly. To do this, we will first of all look at the case of gasoline injectors and then at those of diesel injectors Kia Picanto.


Leaking injector on my petrol Kia Picanto

It is crucial 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 Kia Picanto: The different leaks

It should be noted that injector leaks on a Kia Picanto equipped with a petrol engine are pretty rare. This is as a result of 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 component that is attached 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 portion 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 Kia Picanto

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 Kia Picanto: The different leaks

In the case of leaking diesel injectors on your Kia Picanto, there are three several sort of leaks:

  • Leakage from the injector inlet:
    In this case, it is an inlet pipe that will deform along with time, generally the leak will be at the clamping point.
  • Injector return leakage:
    As its name indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Kia Picanto will be brought on by 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 encounter an air noise and a compression loss.
  • If after checking you have oil leaking but it does not come from your injectors, we suggest you to consult this article content on the existence of oil leaking on your Kia Picanto.

Leaking injector on my Kia Picanto, how to fix the leak

And finally, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is connected, 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 enormous, specifically on diesel engines. So you will have to take some precautions:

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

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

  • Locate the source of the leak
  • Take apart 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 cases, these interventions are not automatically complicated, but if you have the tiniest doubt in the treatment of your injector that leaks on your Kia Picanto, we suggest you to get closer to your auto mechanic to avoid any bad manipulation that could seriously harm the condition of your Kia Picanto.

In the event that you have any further questions about the Kia Picanto, do not hesitate to consult our Kia Picanto category.