In cases where you are aware of unusual signs on your automobile, you are right to be concerned, because a car represents a huge annual budget and unexpected malfunctions don’t reduce the bill. So what if you think that you have a leaking injector on your Suzuki Sx4? You most likely figured it out thanks to black/oily drips along your engine unit, or a troubled idle, or strange black smoke. These three manifestations are the main signs of a leaking injector. As this problem can lead to more significant engine complications on your car, we thought we would produce this content to help you verify the failure of a leaking injector and deal with it properly. To do so, we will first check out the case of gasoline injectors and then at those of diesel injectors Suzuki Sx4.

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Leaking injector on my petrol Suzuki Sx4

It is fundamental to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two sort of engines makes the injection different. The biggest 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 Suzuki Sx4: The different leaks

It should be noted that injector leaks on a Suzuki Sx4 equipped with a petrol engine are rather rare. This is due to the much lower pressure in the petrol intake systems. Nevertheless, 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 connected 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 sooner.

Leaking injector on my diesel Suzuki Sx4

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 Suzuki Sx4: The different leaks

In the case of leaking diesel injectors on your Suzuki Sx4, there are three several sort of leaks:

  • Leakage from the injector inlet:
    In this instance, it is an inlet pipe that will deform along with time, usually the leak will be at the clamping point.
  • Injector return leakage:
    As its name indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Suzuki Sx4 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 suggest you to consult this content on the presence of oil leaking on your Suzuki Sx4.

Leaking injector on my Suzuki Sx4, 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 prior to this, to a worn seal because 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 done…
  • Masking you to avoid the risk of fuel spillage
  • NEVER work on a running diesel engine injector.

Relating to the repair part of your leak, it will regularly be restricted to replacing the seals that have failed:

  • Locate the source of the leak
  • Take apart the injector in question
  • Replace 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 necessarily complicated, but if you have the smallest doubt in the treatment of your injector that leaks on your Suzuki Sx4, we suggest you to get closer to your repair shop to avoid any bad handling that could critically harm the condition of your Suzuki Sx4.

If you want more guides on the Suzuki Sx4, go to our Suzuki Sx4 category.