Having a issue with your car is common, because regrettably recent vehicles are more and more complex and therefore exposed to more and more possible breakdowns. In this article we’re going to try to help you to fix an injection problem on your Renault Koleos . This is a issue that is especially annoying because it can sooner or later bring your car to non starting or broken engine. To get this done, first we will discover how injection works, then, what are the different concerns that can exist on a Renault Koleos injectors , and finally, how to fix them.

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What is the aim of the injection of a Renault Koleos?

So we begin our article by promptly detailing how an injection system works so that you have all the information you need to understand the failures associated with it. < br>
The injection system of a Renault Koleos controls the fuel intake into the engine , it replaces the old carburettors. It has the benefit to be a lot more precise and to come, under pressure, to launch the fuel in the engine. The injection pump takes care of pressurizing the fuel and transferring it to the injectors, and the injectors will release the fuel in the form of micro-drops into the cylinders of your Renault Koleos. The benefit of fuel injection is to have a much more precise dosage than a carburettor and to allow a better air/fuel mixture and therefore a better combustion.

What are the different injection complications on Renault Koleos?

Now in this second component, we are going to see the different injection complications and their symptoms that you may come across on your Renault Koleos .

Injection pump complications Renault Koleos

To start, we will discover the injection pump complications on your Renault Koleos, there are not many of them, they are quite often chronic but we will highlight them below:

  • Electronic issue of the high pressure pump: If you have an electronic issue, the pressure in your injection system might be too high or too low which will bring about a bad air/fuel mixture and therefore a bad combustion and thus alter the behavior of the engine of your Renault Koleos.
  • Leakage from the injection pump of your Renault Koleos: If you have a major leakage problem, the end result will be much the same as if you have a lack of pressure, you will not have enough pressure and therefore the combustion of your fuel will not be good

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Regarding the outcomes and symptoms of a fuel pump issue on a Renault Koleos , you will undoubtedly feel, a lack of power, your engine grazing, dark smoke emissions…

Injectors complications Renault Koleos

Now we proceed to the injector problems on Renault Koleos . Injectors represent the end of your injection system, here are the different complications you may encounter:

  • Dirty Renault Koleos injectors: This can happen because of poor fuel quality, they will let less fuel through or more if they are completely clogged. So you will possibly have one or more cylinders that are not working effectively.
  • Leaky Renault Koleos injector: It’s quite often at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Renault Koleos HS: This is the case when your injectors are completely clogged or when you have an electronic problem, it will not let anything go.

Concerning the symptoms of injector complications on your Renault Koleos it is about the same as for a defective injection pump. You may encounter problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection issue on a Renault Koleos?

To end our content on the injection complications on Renault Koleos , we will try to give you the solutions that exist to fix these complications.
If after a precise diagnosis it’s your injection pump that is the reason of your complications, it will regrettably be very complicated to intervene on the trouble without replacing the component, this change quite often goes with the replacement of the injectors, and sometimes the tank, it will take between 2000 and 3000 euros for the whole, try to get several diagnostics and estimates before starting any repair.
Regarding a issue with an injector there are various solutions depending on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Renault Koleos, do not think twice to consult our article on this subject to get the procedure. If it doesn’t work, you will have to change them.
  • Leaky injector: The replace and the purchase of a joint kit will only cost you a few tens of euros, but you still need to have the ability to replace it, do not think twice to consult our article on the injectors that leak on Renault Koleos, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is broken or doesn’t work anymore, generally, the replacement of an injector costs around 500 euros labor included.

To find more tips on the Renault Koleos, take a look at the Renault Koleos category.