If you are informed of unusual symptoms on your automobile, you are right to be worried, because a car represents a big annual budget and sudden malfunctions don’t reduce the expenses. So what if you feel like you have a leaking injector on your Jeep Renegade? You most likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unusual black smoke. These three symptoms are the main symptoms of a leaking injector. As this problem can produce more critical engine concerns on your car, we decided to produce this content page to help you ensure the failure of a leaking injector and handle it properly. To accomplish this, we will initially look into the circumstance of gasoline injectors and then at those of diesel injectors Jeep Renegade.
Leaking injector on my petrol Jeep Renegade
It is important to know that the injectors on petrol and diesel engines are different, actually, 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 Jeep Renegade: The different leaks
It should be mentioned that injector leaks on a Jeep Renegade 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 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 appear from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Jeep Renegade
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 Jeep Renegade: The different leaks
In the circumstance of leaking diesel injectors on your Jeep Renegade, there are three several kind of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform with 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 Jeep Renegade 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 find 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 page on the existence of oil leaking on your Jeep Renegade.
Leaking injector on my Jeep Renegade, how to fix the leak
And at last, 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 as a result of the pressures endured. But think that the pressure in the circuit is gigantic, 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.
Concerning the repair part of your leak, it will regularly be limited to swapping the seals that have failed:
- Find out the source of the leak
- Dismantle the injector in question
- Change 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 automatically complex, but if you have the smallest uncertainty in the treatment of your injector that leaks on your Jeep Renegade, we advise you to get closer to your auto technician to avoid any bad manipulation that could seriously harm the condition of your Jeep Renegade.
To discover more tips on the Jeep Renegade, take a look at the Jeep Renegade category.
