You’ve almost certainly already heard of the popular EGR valve, the anti-pollution valve. It is not always appreciated by motorists because it has a tendency to cause more concerns than anything else… In reality, according to the use you are going to make of your automobile, it can become blocked and cause you a lot of complications. If this is the situation, you are almost certainly wanting to know how to clean the EGR valve of your Ford C Max ? Don’t worry, we’ve written this article to help you with this task. To do this, we will initially look at the role of the EGR valve, then what are the failures that the EGR valve of your Ford C Max can cause and at last the part that will almost certainly interest you the most, how to clean the EGR valve Ford C Max?


How to Clean your Ford C Max EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been integrated to diesel engines mostly to lower pollution released by cars and to fulfill EURO measures on Ford C Max . 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 Ford C Max , we will examine how it works. As seen just before, its mission 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 operate mostly at low speed because at high speed the combustion is enough to burn all these gases.

How to clean your Ford C Max EGR valve: Identifying faults

The EGR valve, nevertheless very effective to limit the pollution emissions of your Ford C Max , will unfortunately tend to clog up because of soot/gas deposits that will build up in its system, which will eventually risk blocking the functions of the valve, until completely blocking the engine unit, here are the symptoms that a defective EGR valve on your Ford C Max can provoke:

  • Motor light on
  • Power loss
  • Technical inspection rejected
  • Black fumes
  • Vehicle that grazes at low speed
  • Low RPM settings

How to clean your Ford C Max EGR valve: In practice

And now we’ll begin the part you are most enthusiastic about, 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 Ford C Max EGR valve system: Without dismantle

Although this methodology is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, actually, you will only need to use fuel additives, similar to the products used to clean the injection. These specific 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 Ford C Max.

How to clean your car EGR valve: With disassembly

Here is the most efficient methodology, which will require enough access to the EGR valve to execute the operation on your own. If so, the operation is fairly easy. 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 simple steps are finished, now comes the time for cleaning. To accomplish 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 Ford C Max.

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 difficulties (removing too many elements that hinder access for example), how to clean the EGR valve of your Ford C Max? In such a case, it would be better rather than launching yourself into an overly complex task, you turn to an auto mechanic. He will be able to do the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning according to the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Ford C Max

Finally, 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 Ford C Max, they just choose to block it in the closed position. This treatment will have the consequence of greatly increasing the pollution released by the automobile, of no longer complying with pollution criteria, of having an engine warning light permanently on and ultimately risk fouling the engine. We highly recommend against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to take a look at our dedicated page.

If you have any further questions about the Ford C Max, do not hesitate to consult our Ford C Max category.