You’ve probably previously heard about the renowned EGR valve, the anti-pollution valve. It is not always appreciated by motorists because it tends to develop more trouble than anything else… In actual fact, dependant upon the use you are going to make of your car, it can become congested and trigger you a lot of trouble. If this is the case, you are probably wondering how to clean the EGR valve of your Nissan Leaf ? Don’t stress, we’ve made this content to help you with this process. To do this, we will initially check out the goal of the EGR valve, then what are the failures that the EGR valve of your Nissan Leaf can reason and at last the part that will probably interest you the most, how to clean the EGR valve Nissan Leaf?
How to Clean your Nissan Leaf EGR Valve: Role and Operation
Role of the EGR valve
The EGR valve of your car has been added to diesel engines principally to reduce pollution emitted by cars and to fulfill EURO measures on Nissan Leaf . It will therefore influence the quality of exhaust gas output and get rid of toxic particles, mainly Nitrogen Oxide.
Operation of the EGR valve
Before we learn how to clean the EGR valve on your Nissan Leaf , we will have a look at how it functions. As described just before, its mission is to clean the exhaust fumes, so it will be located 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 operate mainly at low speed because at high speed the combustion is sufficient to burn all these gases.
How to clean your Nissan Leaf EGR valve: Identifying faults
The EGR valve, even though very important to limit the pollution emissions of your Nissan Leaf , will regrettably tend to clog up because of soot/gas deposits that will accumulate in its system, which will finally risk blocking the functions of the valve, until completely blocking the engine unit, here are the symptoms that a faulty EGR valve on your Nissan Leaf can trigger:
- Motor light on
- Power loss
- Technical inspection rejected
- Black gases
- Automobile that grazes at low speed
- Low RPM settings
How to clean your Nissan Leaf EGR valve: In practice
And now we’ll commence the part you are most enthusiastic about, how to clean the EGR valve of your car. Here are the two solutions that you can use.
Do it yourself
How to clean your Nissan Leaf EGR valve system: Without taking it apart
Nevertheless this technique is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the truth is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These specific solutions 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 Nissan Leaf.
How to clean your car EGR valve: With disassembly
Here is the most efficient technique, which will require sufficient access to the EGR valve to execute the process without help. If so, the process 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 simple steps are done, 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 as well 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 Nissan Leaf.
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 parts that hinder access for example), how to clean the EGR valve of your Nissan Leaf? In such a case, it would be better rather than launching yourself into an overly complex process, 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 dependant upon the difficulty of access is between 70 and 300 €.
Remove the EGR valve of your Nissan Leaf
At last, 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 Nissan Leaf, they just prefer to block it in the closed position. This treatment will have the result of greatly increasing the pollution emitted by the car, of no longer complying with pollution requirements, 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 think twice to check out our dedicated page.
If perhaps you have any additional questions about the Nissan Leaf, do not hesitate to consult our Nissan Leaf category.
