If you are aware of abnormal signs on your vehicle, you are right to be worried, because a car represents a massive annual budget and surprising malfunctions don’t reduce the costs. So what if you find that you have a leaking injector on your Renault Espace 5? You likely figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or uncommon black smoke. These three symptoms are the main symptoms of a leaking injector. As this troubles can cause more significant engine concerns on your car, we decided to produce this article content to help you ensure the failure of a leaking injector and treat it properly. To do this, we will initially look into the circumstance of gasoline injectors and then at those of diesel injectors Renault Espace 5.
Leaking injector on my petrol Renault Espace 5
It is fundamental to know that the injectors on petrol and diesel engines are distinct, actually, the difference in combustion between these two types of engines makes the injection distinct. The biggest 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 Renault Espace 5: The different leaks
It should be noted that injector leaks on a Renault Espace 5 equipped with a petrol engine are pretty infrequent. This is as a result of 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 plausible 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:
Finally, you may encounter a leak coming from the lower part of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Renault Espace 5
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 Renault Espace 5: The different leaks
In the circumstance of leaking diesel injectors on your Renault Espace 5, there are three different types of leaks:
- Leakage from the injector inlet:
In this case, 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 reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Renault Espace 5 will be a consequence of 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 feel an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we advise you to browse this article content on the presence of oil leaking on your Renault Espace 5.
Leaking injector on my Renault Espace 5, how to fix the leak
And at last, we’re going to look into how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen previously, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is monumental, 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.
Relating to the repair part of your leak, it will oftentimes be restricted 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 assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not specifically complex, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Renault Espace 5, we advise you to get closer to your repair shop to avoid any bad handling that could seriously harm the condition of your Renault Espace 5.
To find more tips on the Renault Espace 5, take a look at the Renault Espace 5 category.
