In the event you are alert of unusual symptoms on your automobile, you are right to be worried, because a car represents a massive annual budget and surprising malfunctions don’t reduce the bill. So what if you think that you have a leaking injector on your Kia Sportage? You most likely figured it out thanks to black/oily drips along your engine, or a troubled idle, or unusual black smoke. These three manifestations are the main indicators of a leaking injector. As this problem can bring about more serious engine complications on your car, we made a decision to write this article to help you validate the failure of a leaking injector and handle it correctly. To do this, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Kia Sportage.
Leaking injector on my petrol Kia Sportage
It is fundamental to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two types 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 Kia Sportage: The different leaks
It should be mentioned that injector leaks on a Kia Sportage equipped with a petrol engine are rather rare. This is as a result of the much lower pressure in the petrol intake systems. Even so, there are two types 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 suffer 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 Sportage
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Kia Sportage: The different leaks
In the circumstance of leaking diesel injectors on your Kia Sportage, there are three several types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, 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 Kia Sportage 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 bothersome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should feel an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we encourage you to consult this article on the presence of oil leaking on your Kia Sportage.
Leaking injector on my Kia Sportage, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Very often a leak is linked, as we have seen sooner, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is completed…
- Covering 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:
- Discover the source of the leak
- Take apart the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not automatically complex, but if you have the smallest doubt in the treatment of your injector that leaks on your Kia Sportage, we encourage you to get closer to your repair shop to avoid any bad manipulation that could significantly harm the condition of your Kia Sportage.
If you want more guides on the Kia Sportage, go to our Kia Sportage category.
