Whenever you are alert of abnormal signs on your automobile, you are right to be preoccupied, because a car represents a huge annual budget and unexpected breakdowns don’t reduce the bill. So what if you sense that you have a leaking injector on your Citroen Jumper 2? You probably figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or strange black smoke. These three symptoms are the main signals of a leaking injector. As this problem can lead to more significant engine problems on your car, we decided to compose this content to help you ensure the failure of a leaking injector and handle it properly. To do this, we will initially take a look at the case of gasoline injectors and then at those of diesel injectors Citroen Jumper 2.
Leaking injector on my petrol Citroen Jumper 2
It is crucial 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 main 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 Jumper 2: The different leaks
It should be said that injector leaks on a Citroen Jumper 2 equipped with a petrol engine are rather rare. This is resulting from the much lower pressure in the petrol intake systems. However, there are two types of leaks:
- Leakage from the top of the injector:
It is plausible that you have a leak from the top of the injector, this is the portion that is connected 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 occur from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Citroen Jumper 2
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 Jumper 2: The different leaks
In the case of leaking diesel injectors on your Citroen Jumper 2, there are three different types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform in the long run, commonly the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Citroen Jumper 2 will be caused 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 encounter 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 read this content on the presence of oil leaking on your Citroen Jumper 2.
Leaking injector on my Citroen Jumper 2, how to fix the leak
And to finish, we’re going to take a look at how to fix a leaking injector on your car. Frequently a leak is linked, as we have seen previously, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is carried out…
- Masking 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 limited 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 set up and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not automatically difficult, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Citroen Jumper 2, we suggest you to get closer to your mechanic to avoid any bad manipulation that could critically harm the condition of your Citroen Jumper 2.
To find more tips on the Citroen Jumper 2, take a look at the Citroen Jumper 2 category.
