In the event that you are informed of abnormal signs on your vehicle, you are right to be worried, because a car represents a big annual budget and unforeseen malfunctions don’t reduce the expenses. So what if you feel as if you have a leaking injector on your Fiat Ducato? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unconventional black smoke. These three manifestations are the main indicators of a leaking injector. As this failure can produce more critical engine problems on your car, we decided to publish this article content to help you confirm the failure of a leaking injector and treat it properly. To achieve this, we will first of all take a look at the circumstance of gasoline injectors and then at those of diesel injectors Fiat Ducato.
Leaking injector on my petrol Fiat Ducato
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 sort of engines makes the injection distinct. 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 Fiat Ducato: The different leaks
It should be known that injector leaks on a Fiat Ducato 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 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 attached 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 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 Fiat Ducato
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 Fiat Ducato: The different leaks
In the circumstance of leaking diesel injectors on your Fiat Ducato, there are three several sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform as time passes, in most cases 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 Fiat Ducato 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 experience an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we encourage you to consult this article content on the existence of oil leaking on your Fiat Ducato.
Leaking injector on my Fiat Ducato, how to fix the leak
And to finish, 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 because of the pressures endured. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is achieved…
- Covering 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 oftentimes be restricted to replacing the seals that have failed:
- Discover 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 situations, these interventions are not automatically complicated, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Fiat Ducato, we encourage you to get closer to your auto mechanic to avoid any bad manipulation that could critically harm the condition of your Fiat Ducato.
To find more tips on the Fiat Ducato, take a look at the Fiat Ducato category.
