Does the air from the vents pass through the filter?

Under the hood, there is a filter, called an "air cleaner element", to keep dirt, sand, etc., from entering the engine. Does the air that comes out of the vents (heating / air conditioning) into the passenger compartment (a) come from this intake and pass through the same filter, (b) come from another intake and pass through a different filter, or (c) come from a different intake and not get filtered?

There are tiny specs of something in the air coming from the vent. Does this mean that I need to replace the filter on the air going to the engine?

7 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    The air cleaner under the hood only cleans the air going into the engine. If your car is equipped with a cabin air filter, it would either be in the duct work of your heater or in the fresh air intake under the cowling.

    Tiny specs are usually the sign of foam insulation breaking down.

    Rick

    I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com

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  • 3 years ago

    If what you're calling the "intake vent" is unquestionably the return air duct, (interior the conditioned area) that is going back to the unit, then confident, you may. There are "filter out grilles" on the marketplace, that open and allow you to inset a sparkling filter out. in case you circulate this course, be sure you have adequate duct area interior the device, so as which you do not restrict the quantity of return air.

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  • Anonymous
    1 decade ago

    No... The air intake for the engine has nothing to do with it...

    You may have dust built up in the vents. Maybe some part of the vent system is crumbling...

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  • 1 decade ago

    Look in front of your windshield, see that vent? This where the air for your heat and AC come from. You may have to raise the hood to see it.

    This link may not be your car. But, it may help. The pictures are under the hood (Hood Up).

    http://www.2carpros.com/how_to/change_cabin_filter...

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  • Anonymous
    1 decade ago

    NO....the filter on engine is for the engine only.....depending on make of car,you could have cabin air filters,...refer to your owners manual or dealership/repair shop.some oil change places do cabin air filters also.

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  • 1 decade ago

    Cabin filter needs to be changed sometimes.

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  • LOL
    Lv 5
    1 decade ago

    sounds like you do. lol

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