Whenever you are informed of unusual symptoms on your automobile, you are right to be intrigued, because a car represents a massive annual budget and unexpected malfunctions don’t lower the expenses. So what if you sense that you have a leaking injector on your Volkswagen Touareg? You almost certainly figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unconventional black smoke. These three signs of illness are the main symptoms of a leaking injector. As this failure can produce more severe engine complications on your car, we decided to compose this content to help you ensure the failure of a leaking injector and treat it properly. To achieve this, we will first of all look into the circumstance of gasoline injectors and then at those of diesel injectors Volkswagen Touareg.
Leaking injector on my petrol Volkswagen Touareg
It is crucial to know that the injectors on petrol and diesel engines are different, actually, 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 Volkswagen Touareg: The different leaks
It should be said that injector leaks on a Volkswagen Touareg equipped with a petrol engine are rather 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:
At last, 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 previously.
Leaking injector on my diesel Volkswagen Touareg
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure produces 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 Volkswagen Touareg: The different leaks
In the circumstance of leaking diesel injectors on your Volkswagen Touareg, 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 suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Volkswagen Touareg 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 encounter an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we advise you to browse this content on the presence of oil leaking on your Volkswagen Touareg.
Leaking injector on my Volkswagen Touareg, 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 linked, as we have seen prior to this, to a worn seal caused by the pressures endured. But think that the pressure in the circuit is monumental, specifically on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is carried out…
- 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 frequently be limited to swapping the seals that have failed:
- Discover 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 situations, these interventions are not inevitably difficult, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Volkswagen Touareg, we advise you to get closer to your motor mechanic to avoid any bad handling that could critically harm the condition of your Volkswagen Touareg.
To get more tips on the Volkswagen Touareg, take a look at the Volkswagen Touareg category.
