Whenever you are informed of unusual symptoms on your car, you are right to be concerned, because a car represents a huge annual budget and unforeseen breakdowns don’t lower the bill. So what if you think that you have a leaking injector on your Hyundai Accent? You probably figured it out thanks to black/oily drips along your engine, or a troubled idle, or abnormal black smoke. These three manifestations are the main signals of a leaking injector. As this troubles can bring about more critical engine complications on your car, we thought we would prepare this content page to help you validate the failure of a leaking injector and deal with it properly. To do so, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Hyundai Accent.
Leaking injector on my petrol Hyundai Accent
It is essential to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two kind of engines makes the injection distinct. The main 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 Accent: The different leaks
It should be mentioned that injector leaks on a Hyundai Accent equipped with a petrol engine are rather infrequent. This is as a result of 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 possible that you have a leak from the top of the injector, this is the portion that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may experience a leak coming from the lower part of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Hyundai Accent
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 Accent: The different leaks
In the circumstance of leaking diesel injectors on your Hyundai Accent, 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 reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Accent 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 recommend you to browse this content page on the presence of oil leaking on your Hyundai Accent.
Leaking injector on my Hyundai Accent, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Very often a leak is linked, as we have seen sooner, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some 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 frequently be limited to swapping the seals that have failed:
- Situate 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 automatically difficult, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Hyundai Accent, we recommend you to get closer to your auto mechanic to avoid any bad manipulation that could significantly harm the condition of your Hyundai Accent.
If you need more guides on the Hyundai Accent, go to our Hyundai Accent category.
