In cases where you are informed of unusual symptoms on your car, you are right to be worried, because a car represents a massive annual budget and unforeseen breakdowns don’t reduce the costs. So what if you feel like you have a leaking injector on your Kia Venga? 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 problem can bring on more critical engine complications on your car, we made a decision to prepare this article to help you verify the failure of a leaking injector and treat it correctly. To do this, we will first take a look at the circumstance of gasoline injectors and then at those of diesel injectors Kia Venga.
Leaking injector on my petrol Kia Venga
It is fundamental to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two sort of engines makes the injection different. The essential 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 Kia Venga: The different leaks
It should be known that injector leaks on a Kia Venga equipped with a petrol engine are pretty rare. This is as a result of 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 part 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 appear from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Kia Venga
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 Venga: The different leaks
In the circumstance of leaking diesel injectors on your Kia Venga, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform after a while, in most cases 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 Kia Venga 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 experience an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we recommend you to browse this article on the existence of oil leaking on your Kia Venga.
Leaking injector on my Kia Venga, how to fix the leak
And at last, we’re going to take a look at how to fix a leaking injector on your car. Regularly a leak is linked, as we have seen previously, to a worn seal because 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 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.
Concerning the repair part of your leak, it will frequently be limited to replacing the seals that have failed:
- Find out 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 necessarily difficult, but if you have the slightest doubt in the treatment of your injector that leaks on your Kia Venga, we recommend you to get closer to your mechanic to avoid any bad manipulation that could critically harm the condition of your Kia Venga.
If you have any further questions about the Kia Venga, do not hesitate to consult our Kia Venga category.
