If you are informed of unusual signs on your car, you are right to be preoccupied, because a car represents a big annual budget and unexpected breakdowns don’t lower the bill. So what if you find that you have a leaking injector on your Ford Transit Connect? You probably figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or abnormal black smoke. These three symptoms are the main symptoms of a leaking injector. As this troubles can bring about more severe engine problems on your car, we decided to write this content to help you verify the failure of a leaking injector and treat it properly. To do so, we will initially look at the case of gasoline injectors and then at those of diesel injectors Ford Transit Connect.
Leaking injector on my petrol Ford Transit Connect
It is essential to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two sort 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 Ford Transit Connect: The different leaks
It should be said that injector leaks on a Ford Transit Connect equipped with a petrol engine are rather infrequent. This is resulting from the much lower pressure in the petrol intake systems. However, there are two sort 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 portion that is connected 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 Ford Transit Connect
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 Ford Transit Connect: The different leaks
In the case of leaking diesel injectors on your Ford Transit Connect, there are three different sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform over time, generally 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 Ford Transit Connect 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 experience an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we recommend you to read this content on the existence of oil leaking on your Ford Transit Connect.
Leaking injector on my Ford Transit Connect, 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 associated, 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 monumental, specifically 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.
Relating to the repair part of your leak, it will regularly be restricted to changing the seals that have failed:
- Discover the source of the leak
- Dismantle 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 cases, these interventions are not inevitably complicated, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Ford Transit Connect, we recommend you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your Ford Transit Connect.
Whenever you have any further questions about the Ford Transit Connect, do not hesitate to consult our Ford Transit Connect category.
