Having a problem with your car is common, because regrettably recent automobiles are more and more complex and therefore subject to more and more possible breakdowns. In this article we’re going to try to help you to solve an injection problem on your Volkswagen Golf 4 . This is a problem that is particularly irritating because it can eventually bring your car to non starting or damaged engine. To achieve this, first we will discover how injection works, then, what are the different concerns that can exist on a Volkswagen Golf 4 injectors , and at last, how to solve them.

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What is the goal of the injection of a Volkswagen Golf 4?

So we start our content by quickly explaining how an injection system works so that you have all the information you need to understand the failures affiliated with it. < br>
The injection system of a Volkswagen Golf 4 controls the fuel intake into the engine , it replaces the old carburettors. It has the benefit to be far 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 relieve the fuel in the form of micro-drops into the cylinders of your Volkswagen Golf 4. 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 problems on Volkswagen Golf 4?

Now in this second part, we are going to explore the different injection problems and their symptoms that you might encounter on your Volkswagen Golf 4 .

Injection pump problems Volkswagen Golf 4

To begin, we will discover the injection pump problems on your Volkswagen Golf 4, there are not many of them, they are quite often recurrent but we will highlight them down below:

  • Electronic problem of the high pressure pump: If you have an electronic problem, 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 Volkswagen Golf 4.
  • Leakage from the injection pump of your Volkswagen Golf 4: If you have a significant leakage problem, the consequence 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 problem on a Volkswagen Golf 4 , you will undoubtedly experience, a lack of power, your engine grazing, dark smoke emissions…

Injectors problems Volkswagen Golf 4

Now we proceed to the injector problems on Volkswagen Golf 4 . Injectors are the end of your injection system, here are the different problems you might encounter:

  • Dirty Volkswagen Golf 4 injectors: This can happen due to poor fuel quality, they will let less fuel through or more if they are entirely clogged. So you will potentially have one or more cylinders that are not functioning properly.
  • Leaky Volkswagen Golf 4 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 Volkswagen Golf 4 HS: This is the circumstance when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Concerning the signs of illness of injector problems on your Volkswagen Golf 4 it is about the same as for a faulty injection pump. You might experience problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection problem on a Volkswagen Golf 4?

To finish our article on the injection problems on Volkswagen Golf 4 , we will try to give you the solutions that exist to solve these problems.
If after a precise investigation it’s your injection pump that is the reason of your problems, it will regrettably be very complicated to intervene on the problem without changing the part, this change quite often goes with the replacement of the injectors, and in some cases the tank, it will take between 2000 and 3000 euros for the whole, try to get some diagnostics and estimates before starting any repair.
Regarding a problem with an injector there are various solutions depending on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Volkswagen Golf 4, do not think twice to consult our content on this subject to get the procedure. If it doesn’t work, you will have to replace 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 hesitate to consult our content on the injectors that leak on Volkswagen Golf 4, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is damaged or doesn’t work anymore, generally, the replacement of an injector costs around 500 euros labor included.

If you need more tutorials on the Volkswagen Golf 4, go to our Volkswagen Golf 4 category.