In the event you are aware of irregular signs on your vehicle, you are right to be worried, because a car represents a massive annual budget and unforeseen breakdowns don’t reduce the bill. So what if you feel as if you have a leaking injector on your Toyota C-hr? You probably figured it out thanks to black/oily drips along your engine unit, or a disturbed idle, or uncommon black smoke. These three symptoms are the main signals of a leaking injector. As this troubles can bring on more significant engine problems on your car, we decided to prepare this content page to help you ensure the failure of a leaking injector and handle it properly. To do so, we will first look into the circumstance of gasoline injectors and then at those of diesel injectors Toyota C-hr.
Leaking injector on my petrol Toyota C-hr
It is crucial 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 key 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 Toyota C-hr: The different leaks
It should be said that injector leaks on a Toyota C-hr equipped with a petrol engine are pretty rare. This is caused by the much lower pressure in the petrol intake systems. Even so, 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 portion 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 come from the junction with the engine and not with the rail as seen previously.
Leaking injector on my diesel Toyota C-hr
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 Toyota C-hr: The different leaks
In the circumstance of leaking diesel injectors on your Toyota C-hr, there are three different sort of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform with time, usually the leak will be at the clamping point. - Injector return leakage:
As its name suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Toyota C-hr 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 annoying, it is the junction between the engine and the injector nose that leaks at a copper seal, you should find an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we recommend you to browse this content page on the presence of oil leaking on your Toyota C-hr.
Leaking injector on my Toyota C-hr, how to fix the leak
And at last, we’re going to look into how to fix a leaking injector on your car. Very often 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, 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 frequently be restricted to changing 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 slightest hesitation in the treatment of your injector that leaks on your Toyota C-hr, we recommend you to get closer to your auto mechanic to avoid any bad manipulation that could severely harm the condition of your Toyota C-hr.
If perhaps you have any further questions about the Toyota C-hr, do not hesitate to consult our Toyota C-hr category.
