If you are aware of irregular symptoms on your car, you are right to be preoccupied, because a car represents a big annual budget and unforeseen malfunctions don’t lower the expenses. So what if you think that you have a leaking injector on your Chevrolet Trax? You almost certainly figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three manifestations are the main signs of a leaking injector. As this failure can lead to more serious engine trouble on your car, we thought we would prepare this article content to help you validate the failure of a leaking injector and deal with it correctly. To do this, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Chevrolet Trax.
Leaking injector on my petrol Chevrolet Trax
It is vital to know that the injectors on petrol and diesel engines are different, actually, the difference in combustion between these two sort of engines makes the injection different. 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 Chevrolet Trax: The different leaks
It should be noted that injector leaks on a Chevrolet Trax equipped with a petrol engine are rather infrequent. This is resulting from 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 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 suffer a leak coming from the lower part 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 Chevrolet Trax
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 Trax: The different leaks
In the circumstance of leaking diesel injectors on your Chevrolet Trax, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform in the long run, commonly the leak will be at the clamping point. - Injector return leakage:
As its name reveals, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your Chevrolet Trax will be brought on by 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 feel an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we suggest you to read this article content on the existence of oil leaking on your Chevrolet Trax.
Leaking injector on my Chevrolet Trax, how to fix the leak
And at last, we’re going to look into how to fix a leaking injector on your car. Frequently a leak is linked, as we have seen sooner, to a worn seal because of the pressures suffered. But think that the pressure in the circuit is enormous, specifically on diesel engines. So you will have to take some precautions:
- 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.
Regarding the repair part of your leak, it will oftentimes be limited 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 assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all situations, these interventions are not specifically very hard, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Chevrolet Trax, we suggest you to get closer to your auto technician to avoid any bad handling that could significantly harm the condition of your Chevrolet Trax.
Whenever you have any additional questions about the Chevrolet Trax, do not hesitate to consult our Chevrolet Trax category.
