In cases where you are alert of abnormal symptoms on your vehicle, you are right to be worried, because a car represents a big annual budget and unforeseen malfunctions don’t lower the costs. So what if you feel like you have a leaking injector on your Opel Grandland X? You probably figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main indicators of a leaking injector. As this failure can cause more serious engine complications on your car, we decided to compose this article content to help you confirm the failure of a leaking injector and handle it properly. To achieve this, we will initially check out the case of gasoline injectors and then at those of diesel injectors Opel Grandland X.
Leaking injector on my petrol Opel Grandland X
It is essential to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two sort of engines makes the injection distinct. The main 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 Opel Grandland X: The different leaks
It should be mentioned that injector leaks on a Opel Grandland X equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. Even so, there are two sort 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 component that is attached 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 appear from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Opel Grandland X
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system creates 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 Opel Grandland X: The different leaks
In the case of leaking diesel injectors on your Opel Grandland X, there are three several sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, commonly the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Opel Grandland X 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 bothersome, 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 verifying you have oil leaking but it does not come from your injectors, we encourage you to read this article content on the existence of oil leaking on your Opel Grandland X.
Leaking injector on my Opel Grandland X, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Very often a leak is linked, as we have seen previously, to a worn seal caused by 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 completed…
- Covering 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 frequently be limited to replacing the seals that have failed:
- Find 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 specifically very hard, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Opel Grandland X, we encourage you to get closer to your auto technician to avoid any bad handling that could significantly harm the condition of your Opel Grandland X.
If you wish more guides on the Opel Grandland X, go to our Opel Grandland X category.
