In cases where you are alert of unusual signs on your automobile, you are right to be worried, because a car represents a huge annual budget and unpredicted malfunctions don’t reduce the costs. So what if you find that you have a leaking injector on your Dodge Avenger? You most likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or unconventional black smoke. These three manifestations are the main indicators of a leaking injector. As this troubles can bring about more significant engine trouble on your car, we made a decision to compose this content page to help you confirm the failure of a leaking injector and treat it properly. To achieve this, we will first of all look into the circumstance of gasoline injectors and then at those of diesel injectors Dodge Avenger.
Leaking injector on my petrol Dodge Avenger
It is important to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two sort of engines makes the injection different. The main 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 Dodge Avenger: The different leaks
It should be noted that injector leaks on a Dodge Avenger equipped with a petrol engine are rather rare. This is caused by 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 component that is linked 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 come from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Dodge Avenger
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 Dodge Avenger: The different leaks
In the circumstance of leaking diesel injectors on your Dodge Avenger, there are three different sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform over time, commonly the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Dodge Avenger 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 bothersome, 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 suggest you to read this content page on the presence of oil leaking on your Dodge Avenger.
Leaking injector on my Dodge Avenger, how to fix the leak
And finally, we’re going to look into how to fix a leaking injector on your car. Oftentimes a leak is associated, as we have seen sooner, 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 precautions:
- Lower the pressure before any work is completed…
- 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 oftentimes be limited to replacing the seals that have failed:
- Identify 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 respect with the manufacturer’s standards.
In all situations, these interventions are not specifically complex, but if you have the tiniest doubt in the treatment of your injector that leaks on your Dodge Avenger, we suggest you to get closer to your auto technician to avoid any bad handling that could significantly harm the condition of your Dodge Avenger.
In the event that you have any additional questions about the Dodge Avenger, do not hesitate to consult our Dodge Avenger category.
