Whenever you are informed of irregular signs on your automobile, you are right to be concerned, because a car represents a big annual budget and unforeseen breakdowns don’t lower the expenses. So what if you think that you have a leaking injector on your Hyundai Elantra? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or abnormal black smoke. These three signs of illness are the main indicators of a leaking injector. As this problem can end up in more significant engine trouble on your car, we thought we would produce this article content to help you verify 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 Elantra.
Leaking injector on my petrol Hyundai Elantra
It is crucial to know that the injectors on petrol and diesel engines are distinct, in reality, 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 Elantra: The different leaks
It should be said that injector leaks on a Hyundai Elantra equipped with a petrol engine are rather infrequent. This is caused by the much lower pressure in the petrol intake systems. Even so, there are two sort of leaks:
- Leakage from the top of the injector:
It is possible 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 experience a leak coming from the lower part of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Hyundai Elantra
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Hyundai Elantra: The different leaks
In the circumstance of leaking diesel injectors on your Hyundai Elantra, there are three different sort of leaks:
- Leakage from the injector inlet:
In this case, 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Elantra 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 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 encourage you to browse this article content on the existence of oil leaking on your Hyundai Elantra.
Leaking injector on my Hyundai Elantra, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Very often a leak is connected, as we have seen previously, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some safety measures:
- 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 very often be limited to changing the seals that have failed:
- Identify the source of the leak
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not specifically complex, but if you have the slightest doubt in the treatment of your injector that leaks on your Hyundai Elantra, we encourage you to get closer to your mechanic to avoid any bad handling that could severely harm the condition of your Hyundai Elantra.
If you have any further questions about the Hyundai Elantra, do not hesitate to consult our Hyundai Elantra category.
