In cases where you are informed of unusual symptoms on your car, you are right to be intrigued, because a car represents a big annual budget and unpredicted breakdowns don’t reduce the costs. So what if you feel as if you have a leaking injector on your Hyundai Santa Fe? You probably figured it out thanks to black/oily drips along your engine, or a disturbed idle, or uncommon black smoke. These three signs of illness are the main signals of a leaking injector. As this problem can cause more significant engine trouble on your car, we thought we would write this article content to help you verify the failure of a leaking injector and handle it properly. To achieve this, we will initially look at the circumstance of gasoline injectors and then at those of diesel injectors Hyundai Santa Fe.
Leaking injector on my petrol Hyundai Santa Fe
It is crucial to know that the injectors on petrol and diesel engines are distinct, in fact, the difference in combustion between these two types 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 Hyundai Santa Fe: The different leaks
It should be known that injector leaks on a Hyundai Santa Fe equipped with a petrol engine are pretty infrequent. This is because of the much lower pressure in the petrol intake systems. Even so, there are two types 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 component that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter 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 Hyundai Santa Fe
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure generates 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 Hyundai Santa Fe: The different leaks
In the circumstance of leaking diesel injectors on your Hyundai Santa Fe, there are three several types 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 implies, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Hyundai Santa Fe 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 examining you have oil leaking but it does not come from your injectors, we encourage you to read this article content on the presence of oil leaking on your Hyundai Santa Fe.
Leaking injector on my Hyundai Santa Fe, how to fix the leak
And at last, we’re going to look at how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen prior to this, to a worn seal due to the pressures suffered. 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 done…
- 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 regularly be restricted to swapping the seals that have failed:
- Find 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 accordance with the manufacturer’s standards.
In all situations, these interventions are not specifically complex, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Hyundai Santa Fe, we encourage you to get closer to your repair shop to avoid any bad manipulation that could critically harm the condition of your Hyundai Santa Fe.
If you wish more guides on the Hyundai Santa Fe, go to our Hyundai Santa Fe category.
