Whenever you are informed of abnormal signs on your vehicle, you are right to be intrigued, because a car represents a huge annual budget and sudden malfunctions don’t reduce the costs. So what if you find that you have a leaking injector on your Skoda Enyaq? You probably figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or abnormal black smoke. These three signs of illness are the main indicators of a leaking injector. As this troubles can produce more severe engine problems on your car, we chose to write this content page to help you verify the failure of a leaking injector and treat it correctly. To do this, we will initially look into the case of gasoline injectors and then at those of diesel injectors Skoda Enyaq.
Leaking injector on my petrol Skoda Enyaq
It is important to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two sort of engines makes the injection distinct. The biggest 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 Skoda Enyaq: The different leaks
It should be said that injector leaks on a Skoda Enyaq equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. However, 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 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 appear from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Skoda Enyaq
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Skoda Enyaq: The different leaks
In the case of leaking diesel injectors on your Skoda Enyaq, there are three several sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform as time passes, generally the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Skoda Enyaq 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 suggest you to consult this content page on the existence of oil leaking on your Skoda Enyaq.
Leaking injector on my Skoda Enyaq, how to fix the leak
And to finish, we’re going to look into how to fix a leaking injector on your car. Regularly a leak is linked, as we have seen previously, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some measures:
- 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.
Relating to the repair part of your leak, it will oftentimes be restricted to swapping the seals that have failed:
- Locate 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 cases, these interventions are not automatically very hard, but if you have the slightest hesitation in the treatment of your injector that leaks on your Skoda Enyaq, we suggest you to get closer to your motor mechanic to avoid any bad manipulation that could severely harm the condition of your Skoda Enyaq.
If you have any further questions about the Skoda Enyaq, do not hesitate to consult our Skoda Enyaq category.
