In cases where you are informed of unusual symptoms on your car, you are right to be preoccupied, because a car represents a huge annual budget and unexpected breakdowns don’t reduce the costs. So what if you feel as if you have a leaking injector on your seat altea? You probably figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or uncommon black smoke. These three symptoms are the main signals of a leaking injector. As this failure can bring on more significant engine problems on your car, we made a decision to prepare this content to help you ensure the failure of a leaking injector and deal with it properly. To achieve this, we will first of all look into the circumstance of gasoline injectors and then at those of diesel injectors seat altea.
Leaking injector on my petrol seat altea
It is crucial 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 seat altea: The different leaks
It should be mentioned that injector leaks on a seat altea equipped with a petrol engine are pretty infrequent. This is because of the much lower pressure in the petrol intake systems. Even so, 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 part that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may encounter a leak coming from the lower part 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 seat altea
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 seat altea: The different leaks
In the circumstance of leaking diesel injectors on your seat altea, there are three several kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform along with time, commonly 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 seat altea 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 annoying, 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 consult this content on the presence of oil leaking on your seat altea.
Leaking injector on my seat altea, how to fix the leak
And finally, we’re going to look into how to fix a leaking injector on your car. Regularly a leak is connected, as we have seen previously, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is gigantic, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is conducted…
- 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 frequently be restricted to swapping the seals that have failed:
- Identify the source of the leak
- Take apart 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 automatically complex, but if you have the slightest doubt in the treatment of your injector that leaks on your seat altea, we suggest you to get closer to your motor mechanic to avoid any bad handling that could seriously harm the condition of your seat altea.
If you need more guides on the seat altea, go to our seat altea category.
