If you are aware of irregular signs on your automobile, you are right to be worried, because a car represents a massive annual budget and unexpected malfunctions don’t reduce the bill. So what if you sense that you have a leaking injector on your Fiat Panda 3? You probably figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or abnormal black smoke. These three symptoms are the main indicators of a leaking injector. As this failure can bring on more severe engine concerns on your car, we chose to compose this article content to help you confirm the failure of a leaking injector and treat it properly. To achieve this, we will initially take a look at the circumstance of gasoline injectors and then at those of diesel injectors Fiat Panda 3.
Leaking injector on my petrol Fiat Panda 3
It is fundamental to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two types of engines makes the injection different. The main 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 Panda 3: The different leaks
It should be noted that injector leaks on a Fiat Panda 3 equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. Even so, there are two types 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:
Finally, you may encounter 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 sooner.
Leaking injector on my diesel Fiat Panda 3
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Panda 3: The different leaks
In the circumstance of leaking diesel injectors on your Fiat Panda 3, there are three different types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform as time passes, usually the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Fiat Panda 3 will be caused 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 checking you have oil leaking but it does not come from your injectors, we encourage you to consult this article content on the presence of oil leaking on your Fiat Panda 3.
Leaking injector on my Fiat Panda 3, 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. Regularly a leak is connected, as we have seen sooner, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is tremendous, specifically on diesel engines. So you will have to take some precautions:
- 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.
Concerning the repair part of your leak, it will regularly be limited to swapping the seals that have failed:
- Find the source of the leak
- Dismantle 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 inevitably difficult, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Fiat Panda 3, we encourage you to get closer to your mechanic to avoid any bad handling that could seriously harm the condition of your Fiat Panda 3.
If you want more tutorials on the Fiat Panda 3, go to our Fiat Panda 3 category.
