If you are informed of abnormal symptoms on your vehicle, you are right to be intrigued, because a car represents a massive annual budget and unexpected malfunctions don’t lower the expenses. So what if you feel as if you have a leaking injector on your Kia Rio? You likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unusual black smoke. These three symptoms are the main indicators of a leaking injector. As this problem can bring on more serious engine problems on your car, we chose to prepare this content to help you verify the failure of a leaking injector and handle it properly. To do this, we will first take a look at the circumstance of gasoline injectors and then at those of diesel injectors Kia Rio.
Leaking injector on my petrol Kia Rio
It is crucial to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two kind 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 Rio: The different leaks
It should be said that injector leaks on a Kia Rio equipped with a petrol engine are pretty rare. This is caused by 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 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 suffer 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 previously.
Leaking injector on my diesel Kia Rio
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 Rio: The different leaks
In the circumstance of leaking diesel injectors on your Kia Rio, there are three different 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 indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Kia Rio will be the result 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 find 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 on the existence of oil leaking on your Kia Rio.
Leaking injector on my Kia Rio, 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 connected, as we have seen prior to this, to a worn seal as a result 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 completed…
- 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 frequently be limited to swapping the seals that have failed:
- Find 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not necessarily very hard, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Kia Rio, we recommend you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Kia Rio.
Whenever you have any further questions about the Kia Rio, do not hesitate to consult our Kia Rio category.
