In cases where you are informed of irregular signs on your car, you are right to be preoccupied, because a car represents a huge annual budget and sudden malfunctions don’t lower the bill. So what if you feel as if you have a leaking injector on your Toyota Prius 2? You almost certainly 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 signs of a leaking injector. As this troubles can cause more severe engine concerns on your car, we made a decision to compose this content page to help you ensure the failure of a leaking injector and treat it properly. To do so, we will first look into the case of gasoline injectors and then at those of diesel injectors Toyota Prius 2.
Leaking injector on my petrol Toyota Prius 2
It is important to know that the injectors on petrol and diesel engines are distinct, the truth is, the difference in combustion between these two types of engines makes the injection distinct. The biggest 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 Toyota Prius 2: The different leaks
It should be said that injector leaks on a Toyota Prius 2 equipped with a petrol engine are rather infrequent. This is because of the much lower pressure in the petrol intake systems. However, there are two types 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 part that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may suffer a leak coming from the lower portion of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Toyota Prius 2
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Toyota Prius 2: The different leaks
In the case of leaking diesel injectors on your Toyota Prius 2, there are three several types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform along with time, usually 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 Toyota Prius 2 will be caused 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 find an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we suggest you to read this content page on the existence of oil leaking on your Toyota Prius 2.
Leaking injector on my Toyota Prius 2, how to fix the leak
And to finish, we’re going to look into how to fix a leaking injector on your car. Very often a leak is linked, as we have seen previously, to a worn seal because 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 measures:
- Lower the pressure before any work is carried out…
- Covering 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 very often be limited to changing 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not inevitably complex, but if you have the tiniest doubt in the treatment of your injector that leaks on your Toyota Prius 2, we suggest you to get closer to your auto mechanic to avoid any bad handling that could severely harm the condition of your Toyota Prius 2.
To discover more tips on the Toyota Prius 2, take a look at the Toyota Prius 2 category.
