More and more drivers are trying to take care of their vehicles on their own. This outcomes in considerable savings because contemporary cars require more and more routine service and are done up of more and more technical parts that lead to new breakdowns or inconveniences. One of the problems that disturbs more and more GMC Sierra owners is a clogged air flow meter, which will bring about a loss of power and black exhaust gases. In this article we are going to examine how to clean the mass air flow sensor of your GMC Sierra? . First, we will show you how your mass airflow sensor works and its usefulness, second, why it may be relevant to clean this sensor , and finally, how to clean the mass air flow sensor of a GMC Sierra .

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Utility and operation of the mass air flow meter of a GMC Sierra

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So we start our content page with the process and point of your GMC Sierra flowmeter.

The goal of the mass air flow sensor on GMC Sierra

The mass air flow sensor is a part that has been created quite recently and mainly equipped on diesel models. In truth, with injection engines, the fuel and air intake has become very precise and it is so important for the ECU to know the exact volume of air injected into the engine to change the behaviour of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your GMC Sierra, do not think twice to seek advice from our content page on this subject.

Mass air flow sensor operation on GMC Sierra

Now, we are going to examine how it works, before trying to clean the mass air flow sensor of your GMC Sierra , you must already understand how it works to achieve this routine service act correctly.

The mass air flow sensor is therefore mainly there to get info on the air intake of your car. To achieve this, it must be mounted just after the air intake of your GMC Sierra, i. e. just after the air filter. It is a pipe equipped with a sensor that will review the air in the intake and transmit the info to the ECU of your car.

Why clean the mass air flow sensor of a GMC Sierra?

The mass air flow sensor of your GMC Sierra can have problems and this is what we will try to discover and understand what problems you may be facing!

Mass air flow sensor problems GMC Sierra

Here are the different problems that the air flow sensor of your GMC Sierra can provoke:

  • higher fuel consumption: Because a dirty flow meter will actually end up in more significant fuel consumption due to poor air flow…
  • Power loss: Related to similar problem, this lack of air can provoke a loss of power to your engine.
  • Difficulties starting the vehicle: Finally, one of the last traditional problems associated with a dirty flowmeter will be that your GMC Sierra will have more difficulties to start the car.

How do I clean the mass air flow sensor from a GMC Sierra?

After reviewing the operation and concerns that the flowmeter can provoke, we will look at how to fix these problems by explaining to you how to clean the mass air flow sensor of your GMC Sierra . You should know that this procedure is quite very easy to carry out and you will not need advanced mechanical skills to do it yourself, a good method to avoid a trip to the mechanic and a steep bill. See below the different steps to stick to to carry out this routine service act:

  • After having located the mass air flow sensor of your GMC Sierra , you will have to dismantle it. To achieve this, act gently, but you will just have to disassemble it on both sides of the air duct and disconnect the electrical plug on top of it.
  • Once taken apart, you will be able to continue to the step cleaning the mass air flow sensor of your GMC Sierra . This sensor will, as time passes, get dirty and its two “filaments” that will give information to your computer on the quality and temperature of the air will no longer be able to collect data correctly, it is in this sense that it will disturb the operation of the engine unit of your GMC Sierra. The goal of this cleaning will be to remove all its impure substances to enable it to work efficiently again.
  • Let soak the lower section of your mass air flow sensor (not the plug part) in acetone or another solvent for a few minutes , which will remove most of the grime
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  • Now we’ll move on to the very delicate cleaning of the flow meter filaments. You have to be very cautious, in any other case your mass air flow sensor will be permanently broken. With the help of a fine brush and solvent, gently clean the two filaments of your mass air flow sensor . If you are too afraid of destroying it, you can as well clean them with a brake fluid in the form of an aerosol by spraying the jet on these filaments.

Now you know how to clean the mass air flow sensor of your GMC Sierra , you should feel a noticeable difference in the behavior of your engine unit.

To discover more tips on the GMC Sierra, take a look at the GMC Sierra category.