You’ve probably already heard about the well-known EGR valve, the anti-pollution valve. It is not usually appreciated by motorists because it has a tendency to create more trouble than anything else… In fact, depending on the use you are going to make of your automobile, it can become clogged and trigger you a lot of concerns. If this is the case, you are probably wanting to know how to clean the EGR valve of your Vauxkhall Moka ? Don’t stress, we’ve well prepared this content page to help you with this operation. To do this, we will initially take a look at the intent of the EGR valve, then what are the failures that the EGR valve of your Vauxkhall Moka can provoke and finally the section that will probably appeal you the most, how to clean the EGR valve Vauxkhall Moka?

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How to Clean your Vauxkhall Moka EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been added to diesel engines mainly to reduce pollution emitted by cars and to meet EURO specifications on Vauxkhall Moka . It will consequently control the quality of exhaust gas output and eliminate toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we learn how to clean the EGR valve on your Vauxkhall Moka , we will examine how it functions. As described just before, its goal is to clean the exhaust fumes, so it will be installed at the engine outlet, thanks to a valve, it will be able to return the unburned exhaust gases to the engine for a second burn which will eliminate all unburned toxic particles. It will run principally at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Vauxkhall Moka EGR valve: Identifying faults

The EGR valve, nevertheless very beneficial to limit the pollution emissions of your Vauxkhall Moka , will unfortunately tend to clog up because of soot/gas deposits that will accumulate in its system, which will ultimately risk blocking the functions of the valve, until totally blocking the engine, here are the signs of illness that a defective EGR valve on your Vauxkhall Moka can provoke:

  • Motor light on
  • Performance loss
  • Technical inspection rejected
  • Black gases
  • Car that grazes at low speed
  • Low RPM settings

How to clean your Vauxkhall Moka EGR valve: In practice

And now we’ll begin the section you are most intrigued by, how to clean the EGR valve of your car. Here are the two methods that you can use.

Do it yourself

How to clean your Vauxkhall Moka EGR valve system: Without taking it apart

Nevertheless this approach is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, in fact, you will only need to use fuel additives, equivalent to the products used to clean the injection. These particular products must be injected into the running engine, at the right operating temperature, diluted in about 20 litres of fuel and run the engine for 3 or 4 minutes in high rev to clean the EGR valve of your Vauxkhall Moka.

How to clean your car EGR valve: With disassembly

Here is the more effective approach, which will require sufficient access to the EGR valve to conduct the operation on your own. If so, the procedure is fairly simple. You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these steps are accomplished, now comes the time for cleaning. To do this, you will need to use a product such as solvent, petrol, oven cleaning product, which you will leave to act for ten minutes, then scrape off the rest using a scraper, finish cleaning with wire brush. If you want to go further, you can also clean the two conduits on which it is connected which may be scorched, for this, use a scraper and a vacuum cleaner to avoid dropping deposits in the conduits. You will only have to reassemble it and you will have finished cleaning the EGR valve of your Vauxkhall Moka.

Have it done by a professional

If, your EGR valve is not accessible because of the series or the engine of your car and if removing it would cause too many complications (removing too many parts that hinder access for example), how to clean the EGR valve of your Vauxkhall Moka? In such a case, it would be better rather than launching yourself into an overly complex operation, you turn to an auto mechanic. He will be able to perform the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning depending on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Vauxkhall Moka

Finally, a number of people make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Vauxkhall Moka, they simply choose to block it in the closed position. This modification will have the outcome of greatly increasing the pollution emitted by the automobile, of no longer complying with pollution standards, of having an engine warning light permanently on and eventually risk fouling the engine. We strongly suggest against making this choice. If you have other questions or want to learn more about your car, don’t think twice to check out our dedicated page.

If you want more tutorials on the Vauxkhall Moka, go to our Vauxkhall Moka category.