In the event that you are informed of unusual signs on your vehicle, you are right to be concerned, because a car represents a massive annual budget and unexpected breakdowns don’t lower the bill. So what if you find that you have a leaking injector on your Chrysler 300? You probably figured it out thanks to black/oily drips along your engine motor, or a troubled idle, or unusual black smoke. These three signs of illness are the main signals of a leaking injector. As this troubles can cause more significant engine concerns on your car, we decided to prepare this content to help you ensure the failure of a leaking injector and deal with it properly. To achieve this, we will first take a look at the case of gasoline injectors and then at those of diesel injectors Chrysler 300.
Leaking injector on my petrol Chrysler 300
It is essential 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 essential 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 Chrysler 300: The different leaks
It should be mentioned that injector leaks on a Chrysler 300 equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. However, 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 portion that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may experience 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 sooner.
Leaking injector on my diesel Chrysler 300
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system creates 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 Chrysler 300: The different leaks
In the case of leaking diesel injectors on your Chrysler 300, there are three several kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform after a while, commonly the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Chrysler 300 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 troublesome, 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 advise you to read this content on the existence of oil leaking on your Chrysler 300.
Leaking injector on my Chrysler 300, how to fix the leak
And to finish, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is connected, as we have seen prior to this, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is conducted…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Regarding the repair part of your leak, it will very often be limited 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 assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all cases, these interventions are not specifically complicated, but if you have the slightest uncertainty in the treatment of your injector that leaks on your Chrysler 300, we advise you to get closer to your auto technician to avoid any bad manipulation that could significantly harm the condition of your Chrysler 300.
If perhaps you have any further questions about the Chrysler 300, do not hesitate to consult our Chrysler 300 category.
