How to Replace Engine Air Filter 2007-16 GMC Acadia

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In this video, we're going to be working with our 2012 GMC Acadia 3.6-liter. We're going to show you how to open up the air box and check out the condition of your air filter. Making sure that you have a clean air filter ensures that the engine is getting the proper air flow through the engine while still getting a nice clean air supply. This means your vehicle is going to have more power and better fuel economy than if that air filter gets clogged up and the engine can't breathe properly.

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Here are the items you'll need for this repair: T25 Torx, ratchet, and socket extension.

Move back the red safety tab on your MAF wiring connector. Push down and remove it from the sensor. Just hang that out of the way for now. Then remove the six T25 Torx screws. We have two on the backside here, one on the angled portion, one down in the front inside corner, and one underneath the intake boot here. We'll do this using a T25 Torx socket and extension and a ratchet. Push in and lift up on the air box cover. You'll have to lift up and unhook these two lines over here at the top corner.

You can reach down and remove the air filter from the housing.

Here we have our old filter that we removed from our vehicle and our new replacement air filter. You can see how dirty and gummed up this one is. All this dirt and debris is going to restrict our air flow, which means that our vehicle is going to see a lower air flow into the engine, thus giving it less fuel. This is going to make our vehicle work harder by producing less power and thus hurting our fuel economy. Our new filter is nice and open, it's going to let more air through, which allows our vehicle to breathe easier and produce more power and get better fuel economy.

Now we'll lift up on our air box again, make sure the filter seats fully into the lower half of the air box. Reclip those air lines back onto the side of the box here, and tighten the screws back down with your T25 ratchet and extension. Be careful not to tighten these screws down too hard, as this is just plastic and you can easily break or strip it. Once it gets down tight with just this little 1/4" ratchet, we know it's good enough. Reinstall the connector for your MAF sensor, and snap the red safety back into place. You're good to go.

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