You’ve probably previously read about the well-known EGR valve, the anti-pollution valve. It is not generally appreciated by drivers because it is likely to develop more concerns than anything else… In truth, according to the use you are going to make of your automobile, it can become blocked and trigger you a lot of problems. If this is the situation, you are probably concerned about how to clean the EGR valve of your Jeep Grand Cherokee ? Don’t be anxious, we’ve made this content page to help you with this process. To do this, we will first check out the goal of the EGR valve, then what are the failures that the EGR valve of your Jeep Grand Cherokee can bring on and to finish the section that will probably concern you the most, how to clean the EGR valve Jeep Grand Cherokee?

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How to Clean your Jeep Grand Cherokee EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been added to diesel engines mainly to reduce pollution released by automobiles and to match EURO measures on Jeep Grand Cherokee . It will therefore 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 Jeep Grand Cherokee , we will check out how it works. As seen just before, its task 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 reduce 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 Jeep Grand Cherokee EGR valve: Identifying faults

The EGR valve, nevertheless very effective to limit the pollution emissions of your Jeep Grand Cherokee , will unfortunately tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will inevitably risk blocking the operation of the valve, until totally blocking the engine, here are the symptoms that a defective EGR valve on your Jeep Grand Cherokee can provoke:

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

How to clean your Jeep Grand Cherokee EGR valve: In practice

And now we’ll begin the section you are most serious about, 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 Jeep Grand Cherokee EGR valve system: Without dismantle

Despite the fact this approach is less effective, 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 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 Jeep Grand Cherokee.

How to clean your car EGR valve: With disassembly

Here is the best approach, which will require enough access to the EGR valve to execute the process yourself. 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 guidelines are accomplished, 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 Jeep Grand Cherokee.

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 problems (removing too many parts that hinder access for example), how to clean the EGR valve of your Jeep Grand Cherokee? 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 necessary, to change the valve if it is dead. The cost of cleaning according to the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Jeep Grand Cherokee

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 Jeep Grand Cherokee, they simply prefer to block it in the closed position. This manipulation will have the effect 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 finally 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 hesitate to check out our dedicated page.

If you need more guides on the Jeep Grand Cherokee, go to our Jeep Grand Cherokee category.