In the event that you are alert of irregular symptoms on your vehicle, you are right to be preoccupied, because a car represents a massive annual budget and unpredicted malfunctions don’t lower the expenses. So what if you sense that you have a leaking injector on your Renault Clio 2? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or unconventional black smoke. These three symptoms are the main signs of a leaking injector. As this troubles can end up in more critical engine problems on your car, we chose to publish this article to help you ensure the failure of a leaking injector and treat it properly. To achieve this, we will initially look into the circumstance of gasoline injectors and then at those of diesel injectors Renault Clio 2.
Leaking injector on my petrol Renault Clio 2
It is vital 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 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 Clio 2: The different leaks
It should be said that injector leaks on a Renault Clio 2 equipped with a petrol engine are pretty rare. This is as a result of the much lower pressure in the petrol intake systems. However, 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 part that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may suffer 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 sooner.
Leaking injector on my diesel Renault Clio 2
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure creates 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 Clio 2: The different leaks
In the circumstance of leaking diesel injectors on your Renault Clio 2, there are three different types of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform along with time, usually 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 Renault Clio 2 will be brought on 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 verifying you have oil leaking but it does not come from your injectors, we encourage you to consult this article on the existence of oil leaking on your Renault Clio 2.
Leaking injector on my Renault Clio 2, how to fix the leak
And finally, 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 due to the pressures endured. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is conducted…
- 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 very often be limited to swapping the seals that have failed:
- Find the source of the leak
- Take apart the injector in question
- Replace 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 necessarily complex, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Renault Clio 2, we encourage you to get closer to your repair shop to avoid any bad handling that could severely harm the condition of your Renault Clio 2.
If you wish more guides on the Renault Clio 2, go to our Renault Clio 2 category.
