If you are aware of irregular symptoms on your vehicle, you are right to be worried, because a car represents a massive annual budget and unforeseen breakdowns don’t lower the expenses. So what if you sense that you have a leaking injector on your Renault Zoe? You most likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three manifestations are the main indicators of a leaking injector. As this failure can end up in more severe engine problems on your car, we decided to produce this content page to help you validate the failure of a leaking injector and handle it correctly. To achieve this, we will initially look at the circumstance of gasoline injectors and then at those of diesel injectors Renault Zoe.
Leaking injector on my petrol Renault Zoe
It is crucial to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two types of engines makes the injection distinct. The essential 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 Zoe: The different leaks
It should be said that injector leaks on a Renault Zoe equipped with a petrol engine are pretty rare. This is caused by 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 conceivable 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 encounter a leak coming from the lower portion 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 Zoe
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 Zoe: The different leaks
In the circumstance of leaking diesel injectors on your Renault Zoe, there are three several types of leaks:
- Leakage from the injector inlet:
In this case, 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 Renault Zoe 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 annoying, it is the junction between the engine and the injector nose that leaks at a copper seal, you should encounter an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we suggest you to browse this content page on the existence of oil leaking on your Renault Zoe.
Leaking injector on my Renault Zoe, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Oftentimes a leak is connected, as we have seen previously, to a worn seal as a result of the pressures endured. But think that the pressure in the circuit is gigantic, specifically on diesel engines. So you will have to take some precautions:
- Lower the pressure before any work is done…
- Covering 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 cases, these interventions are not specifically complicated, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Renault Zoe, we suggest you to get closer to your auto mechanic to avoid any bad manipulation that could seriously harm the condition of your Renault Zoe.
To find more tips on the Renault Zoe, take a look at the Renault Zoe category.
