You’ve probably already heard of the well-known EGR valve, the anti-pollution valve. It is not usually appreciated by car owners because it is likely to cause more problems than anything else… In reality, dependant upon the use you are going to make of your vehicle, it can become blocked and bring about you a lot of trouble. If this is the situation, you are probably wanting to know how to clean the EGR valve of your Mitsubishi Mirage ? Don’t worry, we’ve made this article content to help you with this operation. To do this, we will first take a look at the intent of the EGR valve, then what are the failures that the EGR valve of your Mitsubishi Mirage can bring about and finally the section that will probably interest you the most, how to clean the EGR valve Mitsubishi Mirage?


How to Clean your Mitsubishi Mirage EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been integrated to diesel engines mostly to reduce pollution emitted by cars and to fulfill EURO standards on Mitsubishi Mirage . It will as a result influence the quality of exhaust gas output and get rid of toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Mitsubishi Mirage , we will examine how it works. As seen just before, its objective is to clean the exhaust gases, 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 get rid of all unburned toxic particles. It will function mainly at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Mitsubishi Mirage EGR valve: Identifying faults

The EGR valve, nevertheless very important to limit the pollution emissions of your Mitsubishi Mirage , will sadly tend to clog up because of soot/gas deposits that will build up in its mechanism, which will ultimately risk blocking the operation of the valve, until entirely blocking the engine, here are the signs of illness that a faulty EGR valve on your Mitsubishi Mirage can provoke:

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

How to clean your Mitsubishi Mirage EGR valve: In practice

And now we’ll commence the section you are most interested in, how to clean the EGR valve of your car. Here are the two techniques that you can use.

Do it yourself

How to clean your Mitsubishi Mirage EGR valve system: Without dismantle

Despite the fact this methodology is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, in reality, you will only need to use fuel additives, similar 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 Mitsubishi Mirage.

How to clean your car EGR valve: With disassembly

Here is the most beneficial methodology, which will require sufficient access to the EGR valve to do the operation without help. If so, the operation 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 get this done, 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 even 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 Mitsubishi Mirage.

Have it done by a professional

If, your EGR valve is not reachable because of the series or the engine of your car and if removing it would cause too many difficulties (removing too many parts that hinder access for example), how to clean the EGR valve of your Mitsubishi Mirage? 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 do the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning dependant upon the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Mitsubishi Mirage

At last, a number of people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Mitsubishi Mirage, they just prefer to block it in the closed position. This modification will have the consequence of greatly increasing the pollution emitted by the vehicle, of no longer complying with pollution standards, of having an engine warning light permanently on and finally risk fouling the engine. We strongly advise against making this choice. If you have other questions or want to learn more about your car, don’t hesitate to check out our dedicated page.

To find more tips on the Mitsubishi Mirage, take a look at the Mitsubishi Mirage category.