If you are aware of abnormal symptoms on your car, you are right to be worried, because a car represents a massive annual budget and sudden breakdowns don’t lower the bill. So what if you feel like you have a leaking injector on your Chevrolet Tahoe? 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 signs of illness are the main indicators of a leaking injector. As this troubles can end up in more critical engine problems on your car, we decided to compose this content page to help you validate the failure of a leaking injector and handle it properly. To do so, we will first of all check out the circumstance of gasoline injectors and then at those of diesel injectors Chevrolet Tahoe.
Leaking injector on my petrol Chevrolet Tahoe
It is crucial to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two types of engines makes the injection different. The main 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 Chevrolet Tahoe: The different leaks
It should be known that injector leaks on a Chevrolet Tahoe equipped with a petrol engine are pretty rare. This is as a result of 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 component that is connected 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 before.
Leaking injector on my diesel Chevrolet Tahoe
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 Tahoe: The different leaks
In the circumstance of leaking diesel injectors on your Chevrolet Tahoe, there are three several types of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform after a while, commonly 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 Chevrolet Tahoe 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 verifying you have oil leaking but it does not come from your injectors, we advise you to read this content page on the presence of oil leaking on your Chevrolet Tahoe.
Leaking injector on my Chevrolet Tahoe, how to fix the leak
And to finish, we’re going to check out how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen prior to this, to a worn seal due to the pressures endured. 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 achieved…
- 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 oftentimes be limited to changing the seals that have failed:
- Identify 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 accordance with the manufacturer’s standards.
In all cases, these interventions are not automatically difficult, but if you have the slightest doubt in the treatment of your injector that leaks on your Chevrolet Tahoe, we advise you to get closer to your auto mechanic to avoid any bad manipulation that could critically harm the condition of your Chevrolet Tahoe.
To discover more tips on the Chevrolet Tahoe, take a look at the Chevrolet Tahoe category.
