If you are aware of unusual symptoms on your car, you are right to be preoccupied, because a car represents a massive annual budget and unforeseen breakdowns don’t reduce the costs. So what if you feel as if you have a leaking injector on your Volvo XC60? You almost certainly figured it out thanks to black/oily drips along your engine, or a disturbed idle, or uncommon black smoke. These three signs of illness are the main signs of a leaking injector. As this problem can bring about more severe engine complications on your car, we thought we would publish this content page to help you ensure the failure of a leaking injector and treat it properly. To accomplish this, we will first of all look at the case of gasoline injectors and then at those of diesel injectors Volvo XC60.
Leaking injector on my petrol Volvo XC60
It is crucial to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two kind of engines makes the injection distinct. The biggest difference lies in the pressure undergone 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 XC60: The different leaks
It should be noted that injector leaks on a Volvo XC60 equipped with a petrol engine are rather rare. This is because of the much lower pressure in the petrol intake systems. Even so, there are two kind 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 connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter a leak coming from the lower portion of the injector of your car, this one will come from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Volvo XC60
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 XC60: The different leaks
In the case of leaking diesel injectors on your Volvo XC60, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform with time, commonly 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 Volvo XC60 will be caused 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 examining you have oil leaking but it does not come from your injectors, we advise you to consult this content page on the existence of oil leaking on your Volvo XC60.
Leaking injector on my Volvo XC60, how to fix the leak
And to finish, we’re going to look at how to fix a leaking injector on your car. Very often a leak is associated, as we have seen sooner, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some 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 frequently 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 set up 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 slightest doubt in the treatment of your injector that leaks on your Volvo XC60, we advise you to get closer to your repair shop to avoid any bad handling that could severely harm the condition of your Volvo XC60.
To find more tips on the Volvo XC60, take a look at the Volvo XC60 category.
