In the event that you are aware of irregular signs on your car, you are right to be preoccupied, because a car represents a big annual budget and unforeseen breakdowns don’t lower the expenses. So what if you feel like you have a leaking injector on your Dacia Sandero 2? You likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or abnormal black smoke. These three manifestations are the main indicators of a leaking injector. As this troubles can bring on more serious engine concerns on your car, we chose to write this article content to help you ensure the failure of a leaking injector and treat it properly. To achieve this, we will initially look at the circumstance of gasoline injectors and then at those of diesel injectors Dacia Sandero 2.
Leaking injector on my petrol Dacia Sandero 2
It is fundamental to know that the injectors on petrol and diesel engines are different, actually, 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 Dacia Sandero 2: The different leaks
It should be noted that injector leaks on a Dacia Sandero 2 equipped with a petrol engine are pretty rare. This is as a result of 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 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:
At last, 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 Dacia Sandero 2
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 Dacia Sandero 2: The different leaks
In the circumstance of leaking diesel injectors on your Dacia Sandero 2, there are three different types of leaks:
- Leakage from the injector inlet:
In this case, 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 implies, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Dacia Sandero 2 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 find an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we advise you to consult this article content on the presence of oil leaking on your Dacia Sandero 2.
Leaking injector on my Dacia Sandero 2, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Frequently a leak is associated, as we have seen sooner, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some precautions:
- 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 regularly be limited to changing the seals that have failed:
- Find out the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the set up and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not automatically difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Dacia Sandero 2, we advise you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your Dacia Sandero 2.
If you have any additional questions about the Dacia Sandero 2, do not hesitate to consult our Dacia Sandero 2 category.
