In cases where you are informed of abnormal symptoms on your automobile, you are right to be preoccupied, because a car represents a big annual budget and unforeseen malfunctions don’t reduce the bill. So what if you feel as if you have a leaking injector on your Ford Mustang? You likely figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or abnormal black smoke. These three manifestations are the main symptoms of a leaking injector. As this troubles can lead to more severe engine problems on your car, we made a decision to write this article to help you validate the failure of a leaking injector and deal with it correctly. To achieve this, we will first of all look at the case of gasoline injectors and then at those of diesel injectors Ford Mustang.

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Leaking injector on my petrol Ford Mustang

It is vital to know that the injectors on petrol and diesel engines are distinct, the truth is, the difference in combustion between these two types of engines makes the injection distinct. The main 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 Ford Mustang: The different leaks

It should be known that injector leaks on a Ford Mustang equipped with a petrol engine are rather rare. This is caused by 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 plausible 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:
    Finally, 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 sooner.

Leaking injector on my diesel Ford Mustang

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 Ford Mustang: The different leaks

In the case of leaking diesel injectors on your Ford Mustang, 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 Ford Mustang 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 encourage you to consult this article on the existence of oil leaking on your Ford Mustang.

Leaking injector on my Ford Mustang, 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 linked, as we have seen previously, to a worn seal caused by the pressures suffered. But think that the pressure in the circuit is gigantic, especially on diesel engines. So you will have to take some measures:

  • Lower the pressure before any work is carried out…
  • Covering 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 limited to changing the seals that have failed:

  • Situate the source of the leak
  • Take apart 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 specifically complex, but if you have the smallest hesitation in the treatment of your injector that leaks on your Ford Mustang, we encourage you to get closer to your auto mechanic to avoid any bad manipulation that could seriously harm the condition of your Ford Mustang.

If you wish more guides on the Ford Mustang, go to our Ford Mustang category.