You’ve almost certainly previously heard about the popular EGR valve, the anti-pollution valve. It is not always appreciated by motorists because it is likely to create more problems than anything else… In actual fact, dependent on the use you are going to make of your automobile, it can become blocked and trigger you a lot of concerns. If this is the situation, you are almost certainly wanting to know how to clean the EGR valve of your Nissan Sentra ? Don’t stress, we’ve written this article content to help you with this process. To do this, we will initially take a look at the purpose of the EGR valve, then what are the failures that the EGR valve of your Nissan Sentra can provoke and to finish the section that will almost certainly appeal you the most, how to clean the EGR valve Nissan Sentra?


How to Clean your Nissan Sentra EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been added to diesel engines mainly to lower pollution released by automobiles and to meet EURO requirements on Nissan Sentra . It will as a result control the quality of exhaust gas output and reduce toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Nissan Sentra , we will check out how it operates. As seen just before, its objective 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 reduce all unburned toxic particles. It will perform principally at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Nissan Sentra EGR valve: Identifying faults

The EGR valve, although very important to limit the pollution emissions of your Nissan Sentra , will sadly tend to clog up because of soot/gas deposits that will build up in its mechanism, which will finally risk obstructing the operation of the valve, until entirely blocking the engine unit, here are the signs of illness that a faulty EGR valve on your Nissan Sentra can trigger:

  • Motor light on
  • Power loss
  • Technical assesment refused
  • Black fumes
  • Automobile that grazes at low speed
  • Low RPM settings

How to clean your Nissan Sentra EGR valve: In practice

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

Do it on your own

How to clean your Nissan Sentra EGR valve system: Without dismantle

Nevertheless this procedure is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the reality is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These particular 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 Sentra.

How to clean your car EGR valve: With disassembly

Here is the more effective procedure, which will require sufficient access to the EGR valve to perform the operation without help. If so, the procedure 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 simple steps are finished, 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 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 Nissan Sentra.

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 troubles (removing too many auto parts that hinder access for example), how to clean the EGR valve of your Nissan Sentra? In this instance, it would be better rather than launching yourself into an overly complex process, 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 dependent on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Nissan Sentra

At last, some people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Nissan Sentra, they just prefer to block it in the closed position. This manipulation will have the result of greatly increasing the pollution released by the automobile, of no longer complying with pollution standards, of having an engine warning light permanently on and ultimately risk fouling the engine. We highly suggest 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 you need more tutorials on the Nissan Sentra, go to our Nissan Sentra category.