If you are informed of unusual symptoms on your automobile, you are right to be intrigued, because a car represents a huge annual budget and unexpected malfunctions don’t lower the expenses. So what if you think that you have a leaking injector on your Hyundai Kona? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or unusual black smoke. These three symptoms are the main symptoms of a leaking injector. As this troubles can bring on more severe engine complications on your car, we chose to write this content to help you confirm the failure of a leaking injector and deal with it correctly. To do so, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Hyundai Kona.
Leaking injector on my petrol Hyundai Kona
It is fundamental to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two kind of engines makes the injection different. The main 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 Kona: The different leaks
It should be said that injector leaks on a Hyundai Kona equipped with a petrol engine are rather infrequent. This is due to 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 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 Kona
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 Kona: The different leaks
In the circumstance of leaking diesel injectors on your Hyundai Kona, there are three several kind of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform with time, commonly 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 Hyundai Kona 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 troublesome, 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 verifying you have oil leaking but it does not come from your injectors, we recommend you to consult this content on the existence of oil leaking on your Hyundai Kona.
Leaking injector on my Hyundai Kona, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Frequently a leak is linked, as we have seen previously, to a worn seal due to the pressures endured. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is done…
- 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 restricted to changing the seals that have failed:
- Find out 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 inevitably difficult, but if you have the slightest hesitation in the treatment of your injector that leaks on your Hyundai Kona, we recommend you to get closer to your auto mechanic to avoid any bad handling that could critically harm the condition of your Hyundai Kona.
To find more tips on the Hyundai Kona, take a look at the Hyundai Kona category.
