If you are alert of irregular symptoms on your car, you are right to be preoccupied, because a car represents a big annual budget and surprising malfunctions don’t reduce the costs. So what if you feel as if you have a leaking injector on your Nissan Rogue? You probably figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or uncommon black smoke. These three symptoms are the main symptoms of a leaking injector. As this problem can lead to more critical engine concerns on your car, we made a decision to compose this article content to help you validate the failure of a leaking injector and deal with it properly. To achieve this, we will first of all look at the case of gasoline injectors and then at those of diesel injectors Nissan Rogue.
Leaking injector on my petrol Nissan Rogue
It is important to know that the injectors on petrol and diesel engines are distinct, the truth is, the difference in combustion between these two sort of engines makes the injection distinct. 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 Nissan Rogue: The different leaks
It should be mentioned that injector leaks on a Nissan Rogue equipped with a petrol engine are pretty rare. This is because of 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 component 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 suffer 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 before.
Leaking injector on my diesel Nissan Rogue
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 Nissan Rogue: The different leaks
In the case of leaking diesel injectors on your Nissan Rogue, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform along with time, usually 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 Nissan Rogue will be the result of 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 experience 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 browse this article content on the presence of oil leaking on your Nissan Rogue.
Leaking injector on my Nissan Rogue, how to fix the leak
And to finish, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen prior to this, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is tremendous, specifically on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is completed…
- 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 regularly be restricted to changing the seals that have failed:
- Identify 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 accordance with the manufacturer’s standards.
In all cases, these interventions are not specifically difficult, but if you have the smallest doubt in the treatment of your injector that leaks on your Nissan Rogue, we advise you to get closer to your repair shop to avoid any bad manipulation that could seriously harm the condition of your Nissan Rogue.
To get more tips on the Nissan Rogue, take a look at the Nissan Rogue category.
