In the event you are aware of unusual signs on your automobile, you are right to be preoccupied, because a car represents a huge annual budget and unpredicted malfunctions don’t reduce the bill. So what if you sense that you have a leaking injector on your Toyota Auris? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unconventional black smoke. These three manifestations are the main indicators of a leaking injector. As this problem can end up in more significant engine complications on your car, we thought we would prepare this content to help you verify the failure of a leaking injector and treat it correctly. To do so, we will first of all look at the circumstance of gasoline injectors and then at those of diesel injectors Toyota Auris.
Leaking injector on my petrol Toyota Auris
It is essential 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 main 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 Toyota Auris: The different leaks
It should be known that injector leaks on a Toyota Auris equipped with a petrol engine are pretty rare. This is due to the much lower pressure in the petrol intake systems. However, 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 connected 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 before.
Leaking injector on my diesel Toyota Auris
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Toyota Auris: The different leaks
In the circumstance of leaking diesel injectors on your Toyota Auris, there are three different kind of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, generally 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 Toyota Auris will be caused by 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 examining you have oil leaking but it does not come from your injectors, we recommend you to consult this content on the existence of oil leaking on your Toyota Auris.
Leaking injector on my Toyota Auris, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Very often a leak is associated, as we have seen prior to this, to a worn seal because 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 achieved…
- Masking 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 regularly be restricted to changing the seals that have failed:
- Identify the source of the leak
- Dismantle the injector in question
- Change 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 complicated, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Toyota Auris, we recommend you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your Toyota Auris.
To discover more tips on the Toyota Auris, take a look at the Toyota Auris category.
