In cases where you are informed of abnormal symptoms on your car, you are right to be preoccupied, because a car represents a massive annual budget and unexpected breakdowns don’t lower the expenses. So what if you find that you have a leaking injector on your Ds Ds 7 Crossback? You most likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unusual black smoke. These three symptoms are the main symptoms of a leaking injector. As this problem can end up in more severe engine concerns on your car, we decided to publish this article content to help you confirm the failure of a leaking injector and deal with it correctly. To achieve this, we will initially take a look at the circumstance of gasoline injectors and then at those of diesel injectors Ds Ds 7 Crossback.
Leaking injector on my petrol Ds Ds 7 Crossback
It is vital to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two kind of engines makes the injection distinct. The key 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 Ds Ds 7 Crossback: The different leaks
It should be mentioned that injector leaks on a Ds Ds 7 Crossback equipped with a petrol engine are rather rare. This is because 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 conceivable 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 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 before.
Leaking injector on my diesel Ds Ds 7 Crossback
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 Ds Ds 7 Crossback: The different leaks
In the circumstance of leaking diesel injectors on your Ds Ds 7 Crossback, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform over time, commonly the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Ds Ds 7 Crossback 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 bothersome, 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 checking you have oil leaking but it does not come from your injectors, we suggest you to read this article content on the existence of oil leaking on your Ds Ds 7 Crossback.
Leaking injector on my Ds Ds 7 Crossback, how to fix the leak
And finally, 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 caused by the pressures endured. 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 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 oftentimes be limited to replacing the seals that have failed:
- Find out 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not inevitably difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Ds Ds 7 Crossback, we suggest you to get closer to your auto mechanic to avoid any bad manipulation that could significantly harm the condition of your Ds Ds 7 Crossback.
To get more tips on the Ds Ds 7 Crossback, take a look at the Ds Ds 7 Crossback category.
