You’ve almost certainly previously heard about the famous EGR valve, the anti-pollution valve. It is not usually appreciated by car owners because it tends to create more concerns than anything else… In actual fact, depending on the use you are going to make of your vehicle, it can become congested and trigger you a lot of problems. If this is the case, you are almost certainly wanting to know how to clean the EGR valve of your GMC Acadia ? Don’t stress, we’ve prepared this content page to help you with this process. 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 GMC Acadia can provoke and at last the part that will almost certainly interest you the most, how to clean the EGR valve GMC Acadia?
How to Clean your GMC Acadia 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 emitted by vehicles and to meet EURO requirements on GMC Acadia . It will consequently control the quality of exhaust gas output and get rid of toxic particles, mainly Nitrogen Oxide.
Operation of the EGR valve
Before we learn how to clean the EGR valve on your GMC Acadia , we will check out how it functions. As described 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 get rid of all unburned toxic particles. It will run mostly at low speed because at high speed the combustion is sufficient to burn all these gases.
How to clean your GMC Acadia EGR valve: Identifying faults
The EGR valve, despite the fact very important to limit the pollution emissions of your GMC Acadia , will sadly tend to clog up because of soot/gas deposits that will accumulate in its system, which will ultimately risk obstructing the operation of the valve, until entirely blocking the engine motor, here are the symptoms that a defective EGR valve on your GMC Acadia can cause:
- Motor light on
- Power loss
- Technical inspection refused
- Black fumes
- Car that grazes at low speed
- Low RPM settings
How to clean your GMC Acadia EGR valve: In practice
And now we’ll start the part 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 GMC Acadia EGR valve system: Without dismantle
Despite the fact this technique 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 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 GMC Acadia.
How to clean your car EGR valve: With disassembly
Here is the most beneficial technique, which will require sufficient access to the EGR valve to perform the operation on your own. If so, the procedure 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 simple steps are finished, 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 GMC Acadia.
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 parts that hinder access for example), how to clean the EGR valve of your GMC Acadia? In such a case, 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 depending on the difficulty of access is between 70 and 300 €.
Remove the EGR valve of your GMC Acadia
At last, some individuals make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their GMC Acadia, they simply prefer to block it in the closed position. This modification will have the outcome of greatly increasing the pollution emitted by the vehicle, of no longer complying with pollution requirements, of having an engine warning light all day on and ultimately 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 hesitate to check out our dedicated page.
To get more tips on the GMC Acadia, take a look at the GMC Acadia category.
