If you are aware of abnormal signs on your automobile, you are right to be concerned, because a car represents a huge annual budget and unforeseen breakdowns don’t reduce the expenses. So what if you think that you have a leaking injector on your Peugeot Expert? You likely figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or strange black smoke. These three manifestations are the main symptoms of a leaking injector. As this problem can produce more severe engine complications on your car, we made a decision to publish this article content to help you verify the failure of a leaking injector and deal with it properly. To achieve this, we will initially check out the circumstance of gasoline injectors and then at those of diesel injectors Peugeot Expert.
Leaking injector on my petrol Peugeot Expert
It is important to know that the injectors on petrol and diesel engines are different, in reality, the difference in combustion between these two kind of engines makes the injection different. 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 Peugeot Expert: The different leaks
It should be known that injector leaks on a Peugeot Expert equipped with a petrol engine are pretty infrequent. This is as a result 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 conceivable that you have a leak from the top of the injector, this is the component that is linked 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 part 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 Peugeot Expert
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 Peugeot Expert: The different leaks
In the circumstance of leaking diesel injectors on your Peugeot Expert, there are three different kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform over time, in most cases 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 Peugeot Expert 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 encounter an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we suggest you to browse this article content on the presence of oil leaking on your Peugeot Expert.
Leaking injector on my Peugeot Expert, how to fix the leak
And at last, we’re going to check out how to fix a leaking injector on your car. Frequently a leak is connected, 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 tremendous, specifically on diesel engines. So you will have to take some 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 frequently be restricted to swapping the seals that have failed:
- Situate the source of the leak
- Dismantle the injector in question
- Change 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 automatically complex, but if you have the smallest doubt in the treatment of your injector that leaks on your Peugeot Expert, we suggest you to get closer to your repair shop to avoid any bad handling that could seriously harm the condition of your Peugeot Expert.
If you wish more guides on the Peugeot Expert, go to our Peugeot Expert category.
