You’ve most likely previously read about the renowned EGR valve, the anti-pollution valve. It is not generally appreciated by motorists because it is likely to cause more problems than anything else… In reality, based on the use you are going to make of your automobile, it can become blocked and cause you a lot of trouble. If this is the case, you are most likely wondering how to clean the EGR valve of your Chevrolet Tahoe ? Don’t be anxious, we’ve prepared this content page to help you with this task. To achieve this, we will initially check out the purpose of the EGR valve, then what are the failures that the EGR valve of your Chevrolet Tahoe can cause and to finish the part that will most likely concern you the most, how to clean the EGR valve Chevrolet Tahoe?
How to Clean your Chevrolet Tahoe EGR Valve: Role and Operation
Role of the EGR valve
The EGR valve of your car has been integrated to diesel engines primarily to lower pollution emitted by automobiles and to meet EURO measures on Chevrolet Tahoe . It will as a result influence the quality of exhaust gas output and reduce toxic particles, mainly Nitrogen Oxide.
Operation of the EGR valve
Before we learn how to clean the EGR valve on your Chevrolet Tahoe , we will check out how it works. As seen just before, its objective is to clean the exhaust gases, so it will be positioned 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 mostly at low speed because at high speed the combustion is sufficient to burn all these gases.
How to clean your Chevrolet Tahoe EGR valve: Identifying faults
The EGR valve, although very beneficial to limit the pollution emissions of your Chevrolet Tahoe , will unfortunately tend to clog up because of soot/gas deposits that will build up in its system, which will eventually risk obstructing the functions of the valve, until entirely blocking the engine motor, here are the signs of illness that a defective EGR valve on your Chevrolet Tahoe can cause:
- Motor light on
- Power loss
- Technical assesment rejected
- Black fumes
- Automobile that grazes at low speed
- Low RPM settings
How to clean your Chevrolet Tahoe EGR valve: In practice
And now we’ll commence the part you are most enthusiastic about, how to clean the EGR valve of your car. Here are the two solutions that you can use.
Do it yourself
How to clean your Chevrolet Tahoe EGR valve system: Without dismantle
Despite the fact this methodology is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the truth is, you will only need to use fuel additives, similar 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 Chevrolet Tahoe.
How to clean your car EGR valve: With disassembly
Here is the best methodology, which will require sufficient access to the EGR valve to accomplish the process without help. 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 steps are achieved, 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 also clean the two conduits 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 Chevrolet Tahoe.
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 parts that hinder access for example), how to clean the EGR valve of your Chevrolet Tahoe? In such a case, it would be better rather than launching yourself into an overly complex task, you turn to an auto mechanic. He will be able to perform the job more cleanly and will be able, if required, 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 Chevrolet Tahoe
Finally, some individuals make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Chevrolet Tahoe, they simply choose to block it in the closed position. This manipulation will have the consequence of greatly increasing the pollution emitted by the automobile, of no longer complying with pollution requirements, of having an engine warning light permanently on and in the end risk fouling the engine. We strongly suggest against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to check out our dedicated page.
If perhaps you have any further questions about the Chevrolet Tahoe, do not hesitate to consult our Chevrolet Tahoe category.
