You’ve probably previously been aware of the renowned EGR valve, the anti-pollution valve. It is not usually appreciated by motorists because it tends to cause more problems than anything else… In truth, dependent on the use you are going to make of your car, it can become clogged and bring about you a lot of problems. If this is the situation, you are probably wanting to know how to clean the EGR valve of your Toyota C HR ? Don’t get worried, we’ve made this article to help you with this procedure. To do this, we will initially check out the intent of the EGR valve, then what are the failures that the EGR valve of your Toyota C HR can provoke and to finish the section that will probably interest you the most, how to clean the EGR valve Toyota C HR?


How to Clean your Toyota C HR EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been added to diesel engines principally to lower pollution released by automobiles and to fulfill EURO measures on Toyota C HR . It will therefore influence 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 Toyota C HR , we will check out 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 work mainly at low speed because at high speed the combustion is enough to burn all these gases.

How to clean your Toyota C HR EGR valve: Identifying faults

The EGR valve, even though very important to limit the pollution emissions of your Toyota C HR , will regrettably tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will finally risk obstructing the functions of the valve, until totally blocking the engine unit, here are the symptoms that a faulty EGR valve on your Toyota C HR can trigger:

  • Motor light on
  • Performance loss
  • Technical inspection refused
  • Black fumes
  • Car that grazes at low speed
  • Low RPM settings

How to clean your Toyota C HR EGR valve: In practice

And now we’ll start the section you are most excited about, how to clean the EGR valve of your car. Here are the two techniques that you can use.

Do it on your own

How to clean your Toyota C HR EGR valve system: Without taking it apart

Although this process 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, 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 Toyota C HR.

How to clean your car EGR valve: With disassembly

Here is the strongest process, which will require enough access to the EGR valve to accomplish the operation without help. 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 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 even 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 Toyota C HR.

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 Toyota C HR? In cases like this, 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 dependent on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Toyota C HR

Finally, some people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Toyota C HR, they simply choose to block it in the closed position. This modification will have the effect of greatly increasing the pollution released by the car, of no longer complying with pollution requirements, of having an engine warning light permanently on and in the end 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 think twice to check out our dedicated page.

In the event that you have any further questions about the Toyota C HR, do not hesitate to consult our Toyota C HR category.