In the event you are informed of irregular symptoms on your car, you are right to be concerned, because a car represents a massive annual budget and unexpected malfunctions don’t lower the costs. So what if you feel as if you have a leaking injector on your Renault Espace? You most likely figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three symptoms are the main indicators of a leaking injector. As this problem can bring about more critical engine trouble on your car, we made a decision to prepare this article content to help you ensure the failure of a leaking injector and treat it properly. To do so, we will first of all look into the case of gasoline injectors and then at those of diesel injectors Renault Espace.
Leaking injector on my petrol Renault Espace
It is essential 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 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 Renault Espace: The different leaks
It should be said that injector leaks on a Renault Espace equipped with a petrol engine are rather infrequent. This is as a result 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 plausible 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 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 sooner.
Leaking injector on my diesel Renault Espace
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 Renault Espace: The different leaks
In the case of leaking diesel injectors on your Renault Espace, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform after a while, usually the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Renault Espace 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 find 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.
Leaking injector on my Renault Espace, how to fix the leak
And at last, we’re going to look into how to fix a leaking injector on your car. Frequently a leak is connected, as we have seen prior to this, to a worn seal as a result of the pressures suffered. 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.
Concerning 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
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all cases, these interventions are not inevitably very hard, but if you have the slightest doubt in the treatment of your injector that leaks on your Renault Espace, we advise you to get closer to your motor mechanic to avoid any bad manipulation that could significantly harm the condition of your Renault Espace.
Whenever you have any further questions about the Renault Espace, do not hesitate to consult our Renault Espace category.
