In the event that you are aware of abnormal symptoms on your vehicle, you are right to be intrigued, because a car represents a massive annual budget and unexpected malfunctions don’t reduce the bill. So what if you think that you have a leaking injector on your Volvo V60? You most likely figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or unusual black smoke. These three symptoms are the main signals of a leaking injector. As this failure can bring on more serious engine complications on your car, we decided to write this article content to help you confirm the failure of a leaking injector and treat it correctly. To do so, we will first look at the case of gasoline injectors and then at those of diesel injectors Volvo V60.
Leaking injector on my petrol Volvo V60
It is crucial 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 main 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 Volvo V60: The different leaks
It should be known that injector leaks on a Volvo V60 equipped with a petrol engine are rather rare. This is because 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 conceivable that you have a leak from the top of the injector, this is the portion 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 portion of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Volvo V60
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system 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 Volvo V60: The different leaks
In the case of leaking diesel injectors on your Volvo V60, there are three several types of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform with time, in most cases 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 Volvo V60 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 troublesome, 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 suggest you to consult this article content on the presence of oil leaking on your Volvo V60.
Leaking injector on my Volvo V60, how to fix the leak
And finally, we’re going to look at how to fix a leaking injector on your car. Regularly a leak is connected, as we have seen prior to this, 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 safety measures:
- Lower the pressure before any work is carried out…
- 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 set up and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not specifically complicated, but if you have the slightest doubt in the treatment of your injector that leaks on your Volvo V60, we suggest you to get closer to your mechanic to avoid any bad handling that could seriously harm the condition of your Volvo V60.
In the event that you have any additional questions about the Volvo V60, do not hesitate to consult our Volvo V60 category.
