Whenever you are informed of irregular signs on your vehicle, you are right to be preoccupied, because a car represents a massive annual budget and unpredicted malfunctions don’t reduce the costs. So what if you feel as if you have a leaking injector on your Skoda Kodiaq? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unconventional black smoke. These three symptoms are the main symptoms of a leaking injector. As this failure can bring about more serious engine problems on your car, we made a decision to write this content to help you ensure the failure of a leaking injector and treat it properly. To do so, we will initially take a look at the circumstance of gasoline injectors and then at those of diesel injectors Skoda Kodiaq.
Leaking injector on my petrol Skoda Kodiaq
It is essential to know that the injectors on petrol and diesel engines are different, the truth is, the difference in combustion between these two types of engines makes the injection different. The biggest 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 Skoda Kodiaq: The different leaks
It should be said that injector leaks on a Skoda Kodiaq equipped with a petrol engine are pretty infrequent. This is resulting from the much lower pressure in the petrol intake systems. Nevertheless, 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 part that is connected 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 portion 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 Skoda Kodiaq
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 Skoda Kodiaq: The different leaks
In the circumstance of leaking diesel injectors on your Skoda Kodiaq, there are three several types of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform in the long run, 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 Skoda Kodiaq 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 suggest you to consult this content on the presence of oil leaking on your Skoda Kodiaq.
Leaking injector on my Skoda Kodiaq, 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. Oftentimes a leak is associated, as we have seen previously, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some safety 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 changing the seals that have failed:
- Identify the source of the leak
- Take apart the injector in question
- Replace 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 difficult, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Skoda Kodiaq, we suggest you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Skoda Kodiaq.
Whenever you have any additional questions about the Skoda Kodiaq, do not hesitate to consult our Skoda Kodiaq category.
