In cases where you are aware of irregular signs on your automobile, you are right to be preoccupied, because a car represents a huge annual budget and surprising malfunctions don’t reduce the bill. So what if you think that you have a leaking injector on your Citroen Jumpy? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or strange black smoke. These three signs of illness are the main indicators of a leaking injector. As this problem can bring on more critical engine trouble on your car, we thought we would produce this article to help you ensure the failure of a leaking injector and handle it correctly. To do so, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Citroen Jumpy.
Leaking injector on my petrol Citroen Jumpy
It is fundamental to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two kind of engines makes the injection different. 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 Citroen Jumpy: The different leaks
It should be said that injector leaks on a Citroen Jumpy equipped with a petrol engine are rather rare. This is as a result of the much lower pressure in the petrol intake systems. Nevertheless, there are two kind 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 connected 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 occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Citroen Jumpy
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Jumpy: The different leaks
In the circumstance of leaking diesel injectors on your Citroen Jumpy, there are three different kind of leaks:
- Leakage from the injector inlet:
In cases like this, 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 Jumpy 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 experience an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we recommend you to consult this article on the existence of oil leaking on your Citroen Jumpy.
Leaking injector on my Citroen Jumpy, how to fix the leak
And to finish, we’re going to look at how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen sooner, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is enormous, specifically on diesel engines. So you will have to take some precautions:
- 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.
Relating to the repair part of your leak, it will frequently be restricted 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 inevitably complex, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Citroen Jumpy, we recommend you to get closer to your mechanic to avoid any bad manipulation that could critically harm the condition of your Citroen Jumpy.
If you need more guides on the Citroen Jumpy, go to our Citroen Jumpy category.
