In the event that you are alert of abnormal signs on your automobile, you are right to be intrigued, because a car represents a huge annual budget and surprising breakdowns don’t reduce the expenses. So what if you find that you have a leaking injector on your Mitsubishi Outlander Sport? You likely figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or unusual black smoke. These three symptoms are the main indicators of a leaking injector. As this problem can lead to more critical engine trouble on your car, we decided to prepare this content page to help you ensure the failure of a leaking injector and treat it properly. To do this, we will initially look into the case of gasoline injectors and then at those of diesel injectors Mitsubishi Outlander Sport.
Leaking injector on my petrol Mitsubishi Outlander Sport
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 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 Mitsubishi Outlander Sport: The different leaks
It should be noted that injector leaks on a Mitsubishi Outlander Sport equipped with a petrol engine are rather infrequent. 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 component that is attached 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 come from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Mitsubishi Outlander Sport
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Mitsubishi Outlander Sport: The different leaks
In the case of leaking diesel injectors on your Mitsubishi Outlander Sport, there are three several kind of leaks:
- Leakage from the injector inlet:
In cases like this, 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Mitsubishi Outlander Sport 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 find an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we encourage you to browse this content page on the presence of oil leaking on your Mitsubishi Outlander Sport.
Leaking injector on my Mitsubishi Outlander Sport, how to fix the leak
And to finish, we’re going to look into 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 due to 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 done…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Concerning the repair part of your leak, it will oftentimes be limited to replacing the seals that have failed:
- Find 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 respect with the manufacturer’s standards.
In all cases, these interventions are not inevitably complicated, but if you have the tiniest doubt in the treatment of your injector that leaks on your Mitsubishi Outlander Sport, we encourage you to get closer to your mechanic to avoid any bad manipulation that could significantly harm the condition of your Mitsubishi Outlander Sport.
Whenever you have any further questions about the Mitsubishi Outlander Sport, do not hesitate to consult our Mitsubishi Outlander Sport category.
