In the event that you are alert of abnormal signs on your automobile, you are right to be concerned, because a car represents a big annual budget and sudden malfunctions don’t lower the bill. So what if you find that you have a leaking injector on your Kia Carens? You probably figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unconventional black smoke. These three symptoms are the main signs of a leaking injector. As this problem can end up in more serious engine complications on your car, we thought we would prepare this article to help you confirm the failure of a leaking injector and handle it properly. To accomplish this, we will first of all look into the case of gasoline injectors and then at those of diesel injectors Kia Carens.
Leaking injector on my petrol Kia Carens
It is fundamental to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two types 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 Kia Carens: The different leaks
It should be known that injector leaks on a Kia Carens equipped with a petrol engine are rather rare. This is because 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 conceivable that you have a leak from the top of the injector, this is the part that is linked 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 come from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Kia Carens
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Kia Carens: The different leaks
In the case of leaking diesel injectors on your Kia Carens, there are three different types of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform after a while, generally the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Kia Carens will be brought on by 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 verifying you have oil leaking but it does not come from your injectors, we encourage you to read this article on the existence of oil leaking on your Kia Carens.
Leaking injector on my Kia Carens, how to fix the leak
And finally, we’re going to look into how to fix a leaking injector on your car. Frequently a leak is associated, as we have seen prior to this, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is gigantic, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is conducted…
- Masking 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 restricted to replacing the seals that have failed:
- Situate the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all cases, these interventions are not necessarily complicated, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Kia Carens, we encourage you to get closer to your mechanic to avoid any bad handling that could severely harm the condition of your Kia Carens.
Whenever you have any further questions about the Kia Carens, do not hesitate to consult our Kia Carens category.
