You’ve likely already heard about the well-known EGR valve, the anti-pollution valve. It is not always appreciated by drivers because it has a tendency to cause more concerns than anything else… In reality, dependent on the use you are going to make of your automobile, it can become clogged and cause you a lot of concerns. If this is the situation, you are likely wanting to know how to clean the EGR valve of your Toyota Scion FR S ? Don’t worry, we’ve written this article to help you with this task. To do this, we will initially take a look at the goal of the EGR valve, then what are the failures that the EGR valve of your Toyota Scion FR S can provoke and to finish the section that will likely interest you the most, how to clean the EGR valve Toyota Scion FR S?
How to Clean your Toyota Scion FR S EGR Valve: Role and Operation
Purpose of the EGR valve
The EGR valve of your car has been integrated to diesel engines primarily to lower pollution released by vehicles and to fulfill EURO specifications on Toyota Scion FR S . It will therefore influence 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 Toyota Scion FR S , we will check out how it works. As seen before, its objective is to clean the exhaust fumes, so it will be placed 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 mostly at low speed because at high speed the combustion is sufficient to burn all these gases.
How to clean your Toyota Scion FR S EGR valve: Identifying faults
The EGR valve, despite the fact very important to limit the pollution emissions of your Toyota Scion FR S , will unfortunately tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will ultimately risk obstructing the functions of the valve, until totally blocking the engine unit, here are the symptoms that a defective EGR valve on your Toyota Scion FR S can bring about:
- Motor light on
- Power loss
- Technical inspection refused
- Black gases
- Automobile that grazes at low speed
- Low RPM settings
How to clean your Toyota Scion FR S EGR valve: In practice
And now we’ll commence the section you are most serious about, how to clean the EGR valve of your car. Here are the two ways that you can use.
Do it yourself
How to clean your Toyota Scion FR S EGR valve system: Without dismantle
Even though this approach is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, actually, you will only need to use fuel additives, equivalent 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 Toyota Scion FR S.
How to clean your car EGR valve: With disassembly
Here is the best approach, which will require sufficient access to the EGR valve to conduct the operation yourself. 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 done, now comes the time for cleaning. To make this happen, 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 Toyota Scion FR S.
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 troubles (removing too many auto parts that hinder access for example), how to clean the EGR valve of your Toyota Scion FR S? 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 carry out the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning dependent on the difficulty of access is between 70 and 300 €.
Remove the EGR valve of your Toyota Scion FR S
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 Toyota Scion FR S, 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 all day on and eventually 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 check out our dedicated page.
Whenever you have any further questions about the Toyota Scion FR S, do not hesitate to consult our Toyota Scion FR S category.
