In cases where you are alert of unusual symptoms on your automobile, you are right to be concerned, because a car represents a massive annual budget and sudden malfunctions don’t reduce the costs. So what if you sense that you have a leaking injector on your Jeep Wrangler? You most likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or abnormal black smoke. These three signs of illness are the main indicators of a leaking injector. As this problem can bring on more significant engine trouble on your car, we decided to produce this content page to help you confirm the failure of a leaking injector and deal with it properly. To do this, we will first check out the case of gasoline injectors and then at those of diesel injectors Jeep Wrangler.
Leaking injector on my petrol Jeep Wrangler
It is important to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two sort of engines makes the injection distinct. 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 Jeep Wrangler: The different leaks
It should be said that injector leaks on a Jeep Wrangler equipped with a petrol engine are pretty rare. This is because of the much lower pressure in the petrol intake systems. Even so, there are two sort 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 part 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 suffer 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 Wrangler
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 Jeep Wrangler: The different leaks
In the case of leaking diesel injectors on your Jeep Wrangler, there are three several sort of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, in most cases 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 Jeep Wrangler 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 troublesome, 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 encourage you to browse this content page on the existence of oil leaking on your Jeep Wrangler.
Leaking injector on my Jeep Wrangler, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Very often a leak is connected, as we have seen previously, 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 completed…
- Masking 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 restricted to replacing the seals that have failed:
- Situate 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 situations, these interventions are not automatically complicated, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Jeep Wrangler, we encourage you to get closer to your auto mechanic to avoid any bad manipulation that could severely harm the condition of your Jeep Wrangler.
In the event that you have any further questions about the Jeep Wrangler, do not hesitate to consult our Jeep Wrangler category.
