You’ve almost certainly previously heard of the famous EGR valve, the anti-pollution valve. It is not usually appreciated by motorists because it tends to create more trouble than anything else… Actually, based on the use you are going to make of your automobile, it can become clogged and trigger you a lot of trouble. If this is the situation, you are almost certainly wondering how to clean the EGR valve of your Mazda CX 3 ? Don’t worry, we’ve made this content to help you with this operation. To do so, we will initially check out the intent of the EGR valve, then what are the failures that the EGR valve of your Mazda CX 3 can cause and finally the part that will almost certainly interest you the most, how to clean the EGR valve Mazda CX 3?
How to Clean your Mazda CX 3 EGR Valve: Role and Operation
Role of the EGR valve
The EGR valve of your car has been integrated to diesel engines primarily to reduce pollution emitted by automobiles and to match EURO requirements on Mazda CX 3 . It will as a result control the quality of exhaust gas output and eradicate toxic particles, mainly Nitrogen Oxide.
Operation of the EGR valve
Before we discover how to clean the EGR valve on your Mazda CX 3 , we will have a look at how it functions. As seen just before, its task 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 eradicate 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 Mazda CX 3 EGR valve: Identifying faults
The EGR valve, even though very effective to limit the pollution emissions of your Mazda CX 3 , will regrettably tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will inevitably risk obstructing the functions of the valve, until totally blocking the engine, here are the symptoms that a faulty EGR valve on your Mazda CX 3 can provoke:
- Motor light on
- Power loss
- Technical inspection refused
- Black gases
- Car that grazes at low speed
- Low RPM settings
How to clean your Mazda CX 3 EGR valve: In practice
And now we’ll begin the part 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 on your own
How to clean your Mazda CX 3 EGR valve system: Without dismantle
Nevertheless this process is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, the truth is, you will only need to use fuel additives, similar 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 Mazda CX 3.
How to clean your car EGR valve: With disassembly
Here is the best process, which will require enough access to the EGR valve to accomplish the treatment yourself. If so, the process is fairly straightforward. 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 guidelines are achieved, 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 Mazda CX 3.
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 complications (removing too many elements that hinder access for example), how to clean the EGR valve of your Mazda CX 3? In this instance, it would be better rather than launching yourself into an overly complex operation, you turn to an auto mechanic. He will be able to accomplish the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning based on the difficulty of access is between 70 and 300 €.
Remove the EGR valve of your Mazda CX 3
At last, some people make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Mazda CX 3, they simply choose to block it in the closed position. This manipulation will have the consequence of greatly increasing the pollution emitted by the automobile, of no longer complying with pollution criteria, of having an engine warning light all day on and ultimately risk fouling the engine. We highly advise against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to check out our dedicated page.
To discover more tips on the Mazda CX 3, take a look at the Mazda CX 3 category.
