If you are aware of abnormal symptoms on your car, you are right to be worried, because a car represents a huge annual budget and unpredicted breakdowns don’t lower the expenses. So what if you find that you have a leaking injector on your Citroen Berlingo? You probably figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three signs of illness are the main signals of a leaking injector. As this failure can bring on more significant engine problems on your car, we made a decision to prepare this article to help you confirm the failure of a leaking injector and handle it properly. To do so, we will first look at the circumstance of gasoline injectors and then at those of diesel injectors Citroen Berlingo.
Leaking injector on my petrol Citroen Berlingo
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 kind of engines makes the injection different. The essential 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 Berlingo: The different leaks
It should be noted that injector leaks on a Citroen Berlingo equipped with a petrol engine are pretty infrequent. This is due to the much lower pressure in the petrol intake systems. Even so, there are two kind 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 portion 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 portion of the injector of your car, this one will come from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Citroen Berlingo
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 Citroen Berlingo: The different leaks
In the circumstance of leaking diesel injectors on your Citroen Berlingo, there are three different kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform along with time, generally 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 Citroen Berlingo 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 annoying, 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 verifying you have oil leaking but it does not come from your injectors, we advise you to consult this article on the existence of oil leaking on your Citroen Berlingo.
Leaking injector on my Citroen Berlingo, 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 prior to this, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is achieved…
- 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 very often be restricted to replacing the seals that have failed:
- Situate the source of the leak
- Take apart the injector in question
- Replace the corresponding seal kit
- Reassemble the set up and tighten with a torque wrench in respect with the manufacturer’s standards.
In all cases, these interventions are not automatically complicated, but if you have the smallest uncertainty in the treatment of your injector that leaks on your Citroen Berlingo, we advise you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Citroen Berlingo.
If perhaps you have any further questions about the Citroen Berlingo, do not hesitate to consult our Citroen Berlingo category.
