In the event that you are alert of abnormal symptoms on your car, you are right to be worried, because a car represents a big annual budget and unforeseen malfunctions don’t lower the bill. So what if you think that you have a leaking injector on your Honda Pilot? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three signs of illness are the main symptoms of a leaking injector. As this problem can lead to more critical engine trouble on your car, we thought we would publish this article to help you verify the failure of a leaking injector and handle it properly. To achieve this, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Honda Pilot.
Leaking injector on my petrol Honda Pilot
It is essential to know that the injectors on petrol and diesel engines are different, in fact, 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 Honda Pilot: The different leaks
It should be said that injector leaks on a Honda Pilot equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. Nevertheless, 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 portion that is connected to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may experience 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 sooner.
Leaking injector on my diesel Honda Pilot
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 Honda Pilot: The different leaks
In the circumstance of leaking diesel injectors on your Honda Pilot, there are three different kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform after a while, generally 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 Honda Pilot 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 annoying, 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 on the existence of oil leaking on your Honda Pilot.
Leaking injector on my Honda Pilot, how to fix the leak
And to finish, we’re going to look into how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen sooner, to a worn seal because of the pressures endured. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some 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 oftentimes be restricted to changing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Replace the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in respect with the manufacturer’s standards.
In all situations, these interventions are not automatically difficult, but if you have the smallest hesitation in the treatment of your injector that leaks on your Honda Pilot, we suggest you to get closer to your auto technician to avoid any bad handling that could significantly harm the condition of your Honda Pilot.
If you wish more tutorials on the Honda Pilot, go to our Honda Pilot category.
