In the event you are aware of abnormal signs on your vehicle, you are right to be concerned, because a car represents a big annual budget and unforeseen malfunctions don’t reduce the expenses. So what if you feel as if you have a leaking injector on your Vauxkhall Astra? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or uncommon black smoke. These three manifestations are the main signals of a leaking injector. As this failure can lead to more significant engine complications on your car, we thought we would publish this content page to help you ensure the failure of a leaking injector and deal with it correctly. To accomplish this, we will first look at the case of gasoline injectors and then at those of diesel injectors Vauxkhall Astra.
Leaking injector on my petrol Vauxkhall Astra
It is essential to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two types 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 Vauxkhall Astra: The different leaks
It should be said that injector leaks on a Vauxkhall Astra equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. Nevertheless, there are two types 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 attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter a leak coming from the lower portion 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 Vauxkhall Astra
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 Vauxkhall Astra: The different leaks
In the case of leaking diesel injectors on your Vauxkhall Astra, there are three several types of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform in the long run, generally the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Vauxkhall Astra will be a consequence of 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 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 consult this content page on the existence of oil leaking on your Vauxkhall Astra.
Leaking injector on my Vauxkhall Astra, how to fix the leak
And finally, 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 as a result 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 completed…
- Masking 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:
- Situate the source of the leak
- Take apart 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 automatically difficult, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Vauxkhall Astra, we suggest you to get closer to your repair shop to avoid any bad handling that could significantly harm the condition of your Vauxkhall Astra.
If perhaps you have any further questions about the Vauxkhall Astra, do not hesitate to consult our Vauxkhall Astra category.
