You’ve almost certainly previously read about the popular EGR valve, the anti-pollution valve. It is not always appreciated by car owners because it has a tendency to cause more trouble than anything else… In reality, based on the use you are going to make of your automobile, it can become blocked and cause you a lot of concerns. If this is the situation, you are almost certainly concerned about how to clean the EGR valve of your Land Rover LR4 ? Don’t stress, we’ve written this content page to help you with this procedure. To do so, we will initially take a look at the purpose of the EGR valve, then what are the failures that the EGR valve of your Land Rover LR4 can provoke and finally the part that will almost certainly appeal you the most, how to clean the EGR valve Land Rover LR4?
How to Clean your Land Rover LR4 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 released by cars and to fulfill EURO standards on Land Rover LR4 . It will consequently 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 Land Rover LR4 , we will check out how it operates. As seen just before, its objective is to clean the exhaust fumes, so it will be positioned 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 work principally at low speed because at high speed the combustion is enough to burn all these gases.
How to clean your Land Rover LR4 EGR valve: Identifying faults
The EGR valve, nevertheless very important to limit the pollution emissions of your Land Rover LR4 , will regrettably tend to clog up because of soot/gas deposits that will accumulate in its system, which will ultimately risk obstructing the operation of the valve, until totally blocking the engine, here are the signs of illness that a faulty EGR valve on your Land Rover LR4 can cause:
- Motor light on
- Performance loss
- Technical assesment refused
- Black gases
- Car that grazes at low speed
- Low RPM settings
How to clean your Land Rover LR4 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 on your own
How to clean your Land Rover LR4 EGR valve system: Without dismantle
Although this methodology is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, in fact, 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 Land Rover LR4.
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 yourself. If so, the process 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 steps are achieved, 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 canal 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 Land Rover LR4.
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 auto parts that hinder access for example), how to clean the EGR valve of your Land Rover LR4? In such a case, it would be better rather than launching yourself into an overly complex procedure, you turn to an auto mechanic. He will be able to carry out 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 Land Rover LR4
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 Land Rover LR4, they simply choose to block it in the closed position. This manipulation will have the outcome 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 finally 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 hesitate to take a look at our dedicated page.
If you need more guides on the Land Rover LR4, go to our Land Rover LR4 category.
