In the event that you are informed of irregular symptoms on your vehicle, you are right to be worried, because a car represents a massive annual budget and unexpected malfunctions don’t lower the bill. So what if you feel as if you have a leaking injector on your Toyota Venza? 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 symptoms are the main signs of a leaking injector. As this failure can end up in more critical engine problems on your car, we chose to compose this content page to help you verify the failure of a leaking injector and handle it correctly. To do so, we will first of all take a look at the case of gasoline injectors and then at those of diesel injectors Toyota Venza.
Leaking injector on my petrol Toyota Venza
It is important to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two kind of engines makes the injection distinct. 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 Toyota Venza: The different leaks
It should be mentioned that injector leaks on a Toyota Venza equipped with a petrol engine are rather infrequent. This is caused by 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 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 experience 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 previously.
Leaking injector on my diesel Toyota Venza
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Toyota Venza: The different leaks
In the case of leaking diesel injectors on your Toyota Venza, there are three different kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform along with time, in most cases the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Toyota Venza will be brought on by 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 experience an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we recommend you to consult this content page on the presence of oil leaking on your Toyota Venza.
Leaking injector on my Toyota Venza, how to fix the leak
And at last, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is associated, as we have seen previously, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is carried out…
- 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 regularly be restricted to swapping the seals that have failed:
- Identify the source of the leak
- Take apart the injector in question
- Replace the corresponding seal kit
- Reassemble the set up 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 smallest hesitation in the treatment of your injector that leaks on your Toyota Venza, we recommend you to get closer to your motor mechanic to avoid any bad handling that could significantly harm the condition of your Toyota Venza.
If you want more guides on the Toyota Venza, go to our Toyota Venza category.
