You’ve almost certainly already heard about the renowned EGR valve, the anti-pollution valve. It is not generally appreciated by car owners because it tends to create more trouble than anything else… In fact, based on the use you are going to make of your car, it can become blocked and bring about you a lot of complications. If this is the case, you are almost certainly concerned about how to clean the EGR valve of your GMC Yukon ? Don’t get worried, we’ve prepared this article content to help you with this operation. To do this, we will initially look at the intent of the EGR valve, then what are the failures that the EGR valve of your GMC Yukon can bring about and at last the section that will almost certainly interest you the most, how to clean the EGR valve GMC Yukon?
How to Clean your GMC Yukon EGR Valve: Role and Operation
Goal of the EGR valve
The EGR valve of your car has been integrated to diesel engines principally to reduce pollution emitted by vehicles and to match EURO standards on GMC Yukon . It will consequently control the quality of exhaust gas output and eradicate toxic particles, mainly Nitrogen Oxide.
Operation of the EGR valve
Before we learn how to clean the EGR valve on your GMC Yukon , we will check out how it functions. As seen 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 eradicate all unburned toxic particles. It will work mostly at low speed because at high speed the combustion is enough to burn all these gases.
How to clean your GMC Yukon EGR valve: Identifying faults
The EGR valve, despite the fact very useful to limit the pollution emissions of your GMC Yukon , will unfortunately tend to clog up because of soot/gas deposits that will build up in its system, which will finally risk obstructing the functions of the valve, until completely blocking the engine motor, here are the symptoms that a defective EGR valve on your GMC Yukon can provoke:
- Motor light on
- Performance loss
- Technical inspection refused
- Black gases
- Car that grazes at low speed
- Low RPM settings
How to clean your GMC Yukon EGR valve: In practice
And now we’ll begin the section you are most curious 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 GMC Yukon EGR valve system: Without taking it apart
Nevertheless this procedure is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, the truth is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These specific 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 GMC Yukon.
How to clean your car EGR valve: With disassembly
Here is the most effective procedure, which will require enough access to the EGR valve to carry out the treatment yourself. If so, the operation 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 steps are accomplished, now comes the time for cleaning. To achieve 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 GMC Yukon.
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 GMC Yukon? In this instance, it would be better rather than launching yourself into an overly complex operation, you turn to an auto mechanic. He will be able to perform the job more cleanly and will be able, if necessary, 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 GMC Yukon
Finally, some people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their GMC Yukon, they just prefer to block it in the closed position. This modification will have the effect of greatly increasing the pollution emitted by the car, of no longer complying with pollution requirements, of having an engine warning light all day on and finally risk fouling the engine. We strongly recommend 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.
To discover more tips on the GMC Yukon, take a look at the GMC Yukon category.
