In the event that you are aware of irregular signs on your automobile, you are right to be worried, because a car represents a big annual budget and unpredicted malfunctions don’t lower the expenses. So what if you find that you have a leaking injector on your Hyundai Tucson? You almost certainly figured it out thanks to black/oily drips along your engine, or a troubled idle, or abnormal black smoke. These three manifestations are the main signs of a leaking injector. As this troubles can bring on more significant engine problems on your car, we chose to produce this article to help you verify the failure of a leaking injector and treat it properly. To achieve this, we will initially look into the case of gasoline injectors and then at those of diesel injectors Hyundai Tucson.
Leaking injector on my petrol Hyundai Tucson
It is crucial to know that the injectors on petrol and diesel engines are different, the truth is, the difference in combustion between these two sort of engines makes the injection different. The essential 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 Hyundai Tucson: The different leaks
It should be noted that injector leaks on a Hyundai Tucson equipped with a petrol engine are rather infrequent. This is because of the much lower pressure in the petrol intake systems. Nevertheless, there are two sort 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 linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may suffer 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 before.
Leaking injector on my diesel Hyundai Tucson
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 Hyundai Tucson: The different leaks
In the case of leaking diesel injectors on your Hyundai Tucson, there are three different sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform in the long run, in most cases the leak will be at the clamping point. - Injector return leakage:
As its name implies, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Tucson will be the result of an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most troublesome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should encounter an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we advise you to read this article on the presence of oil leaking on your Hyundai Tucson.
Leaking injector on my Hyundai Tucson, how to fix the leak
And to finish, we’re going to look into how to fix a leaking injector on your car. Frequently a leak is associated, as we have seen previously, to a worn seal due to the pressures endured. 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 done…
- 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 very often be limited to replacing the seals that have failed:
- Discover 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 respect with the manufacturer’s standards.
In all situations, these interventions are not specifically complicated, but if you have the smallest hesitation in the treatment of your injector that leaks on your Hyundai Tucson, we advise you to get closer to your mechanic to avoid any bad handling that could significantly harm the condition of your Hyundai Tucson.
To find more tips on the Hyundai Tucson, take a look at the Hyundai Tucson category.
