Where is air filter located - 2004 GMC Envoy

the black air induction to bring from air filter to throttle body somewhere on the middle of it will be the intake air temperature sensor it is a two wire connector it will be the the only electrical plug located in the air induction tube if it is not found there it will be located on the side of the air filter housing

It is located under the panel in front of windscreen

If si for toyota camry you cand find on this blog where is cabin air filter is located and how to replace.
http://filterlocation.com/toyota-camry-cabin-air-filter-location/ Toyota Camry cabin air filter location

open your hood. locate the air filter cover. remove the clips of the air filter cover. inside it you can see your air filter.

air filters are normally located at the right side or back side of your engine. it is normally a large black box.

The air filter will filter the air going into the engine and is located in the engine compartment. The cabin filter filters the are entering the passenger compartment and is located behind the glove box. The other filter would be the fuel filter, It is typically located or mounted on the firewall in the engine compartment.

If you would like more details on any of these don't hesitate to ask!

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The air filter box is located closer to the grille. The air box has a very large hose going up to the engine. You'll have to open the air box to get the filter out.

your cabin air filter is located under the windshield wiper cover on the passenger side of car open your hood to see the access panel

should be a little single wire connected to the air filter box. located on the clean side of the air filter. if not it will be between the air filter box and the throttle plate usually located on the air duct hose going from the air filter box to the throttle plate.

its nex to the brakes http://www.youtube.com/watch?v=0xcBGnP1vNY

The engine air filter is located in the box behind the battery. This box should have 4 metal clips that pop off and you and pick up the top of the box and underneath is the filter.