In the event that you are informed of unusual symptoms on your car, you are right to be preoccupied, because a car represents a massive annual budget and unexpected malfunctions don’t reduce the bill. So what if you find that you have a leaking injector on your Chevrolet Bolt? You most likely figured it out thanks to black/oily drips along your engine, or a disturbed idle, or uncommon black smoke. These three manifestations are the main signals of a leaking injector. As this troubles can cause more severe engine problems on your car, we thought we would produce this content page to help you validate the failure of a leaking injector and deal with it correctly. To do so, we will first check out the circumstance of gasoline injectors and then at those of diesel injectors Chevrolet Bolt.


Leaking injector on my petrol Chevrolet Bolt

It is important to know that the injectors on petrol and diesel engines are different, in fact, 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 Chevrolet Bolt: The different leaks

It should be said that injector leaks on a Chevrolet Bolt equipped with a petrol engine are rather infrequent. This is because of the much lower pressure in the petrol intake systems. Nevertheless, there are two kind 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 linked 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 come from the junction with the engine and not with the rail as seen before.

Leaking injector on my diesel Chevrolet Bolt

Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure 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 Chevrolet Bolt: The different leaks

In the circumstance of leaking diesel injectors on your Chevrolet Bolt, there are three different kind of leaks:

  • Leakage from the injector inlet:
    In cases like this, it is an inlet pipe that will deform over time, usually the leak will be at the clamping point.
  • Injector return leakage:
    As its name reveals, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Chevrolet Bolt 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 examining 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 Chevrolet Bolt.

Leaking injector on my Chevrolet Bolt, how to fix the leak

And at last, we’re going to check out how to fix a leaking injector on your car. Frequently a leak is connected, as we have seen previously, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is enormous, especially on diesel engines. So you will have to take some measures:

  • Lower the pressure before any work is achieved…
  • 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 very often be limited to replacing the seals that have failed:

  • Identify the source of the leak
  • Take apart the injector in question
  • Change the corresponding seal kit
  • Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.

In all situations, these interventions are not automatically complicated, but if you have the tiniest hesitation in the treatment of your injector that leaks on your Chevrolet Bolt, we advise you to get closer to your auto mechanic to avoid any bad manipulation that could seriously harm the condition of your Chevrolet Bolt.

To get more tips on the Chevrolet Bolt, take a look at the Chevrolet Bolt category.