In the event that you are alert of abnormal symptoms on your automobile, you are right to be concerned, because a car represents a big annual budget and unexpected breakdowns don’t reduce the expenses. So what if you think that you have a leaking injector on your Citroen Ds3? You probably figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three manifestations are the main symptoms of a leaking injector. As this troubles can produce more severe engine trouble on your car, we thought we would publish this article content to help you verify the failure of a leaking injector and deal with it correctly. To accomplish this, we will first of all look at the case of gasoline injectors and then at those of diesel injectors Citroen Ds3.
Leaking injector on my petrol Citroen Ds3
It is fundamental to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two sort 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 Citroen Ds3: The different leaks
It should be noted that injector leaks on a Citroen Ds3 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 sort 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 connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter a leak coming from the lower portion 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 Citroen Ds3
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Citroen Ds3: The different leaks
In the case of leaking diesel injectors on your Citroen Ds3, there are three several sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform over time, generally 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 Citroen Ds3 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 troublesome, 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 advise you to consult this article content on the presence of oil leaking on your Citroen Ds3.
Leaking injector on my Citroen Ds3, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is linked, as we have seen sooner, to a worn seal because of the pressures endured. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is done…
- 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 frequently 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 assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not necessarily difficult, but if you have the slightest hesitation in the treatment of your injector that leaks on your Citroen Ds3, we advise you to get closer to your motor mechanic to avoid any bad manipulation that could significantly harm the condition of your Citroen Ds3.
To find more tips on the Citroen Ds3, take a look at the Citroen Ds3 category.
