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What is engine air filter? 01

Air filter let your car engine breathe clean air

Why does air filter need to be replaced? 02

A clean air filter results in improved gas mileage, better acceleration, increased engine life, lower emissions and overall improved engine performance Not only does an air filter clean the air entering the engine but it also prevents debris from entering the engine and causing damage. For each gallon of fuel the engine burns, it requires up to 10,000 gallons of clean air; thus why the air filter is such an important engine component. In some situations, a clean air filter will improve gas mileage by as much as 14% and may increase acceleration by up to 11% depending on the make and model of car.

Symptoms of a dirty air filter 03

 

As an air filter becomes dirty, the capacity for it to filter the air going into the engine is reduced. Because of this, the engine is not able to function properly, which may cause numerous drivability issues. Examining and replacing the air filter, as indicated by the manufacturer's maintenance schedule, is important but often times overlooked. Other symptoms are potential ignition problems cause by fouled spark plugs. A dirty air filter prevents the necessary volume of clean air from reaching the engine which affects the emission control systems of the car; reducing air flow and causing a too rich air-fuel mixture which can foul the spark plugs. Fouled spark plugs can create an engine miss, rough idle and even starting problems. In addition, a too rich fuel mixture increases engine deposits which may even cause the Service Engine Soon light to come on. A brand new air filter will generally appear white to off white. A visual inspection of an air filter may reveal that the air filter has become darkened or full of debris. A visual inspection can be done by examining the air filter in bright light. However, an air filter can become clogged with dust and even pollen that may not be easily seen. Therefore, most car manufacturers recommend replacement every 12,000 to 15,000 miles regardless of whether or not the air filter appears to be clean. Cars driven in dusty or frequent stop and go conditions will requires a more frequent check and replacement of the air filter

Installation 04

Learning how to tell if your car air filter needs changing will help you keep your car running properly and ultimately save money on gas and repairs. Changing an air filter is relatively easy and inexpensive. The air filter is located near the top driver's side of the engine in a rectangular shaped plastic housing that either snaps or screws shut on most new cars. Older cars with carburetors usually have a circular shaped air filter located in a metal housing on top of the engine that fastens with a wing nut. Make certain to use the correct air filter replacement for your make and model of car. This guide will teach you how to successfully remove and replace your engine's air filter.

  • Use proper protective gear (illus 1)
  • Loosen wing nut or other fasteners to remove filter cover
  • Remove old air filter (illus2)
  • Clean filter cover and housing using a shop vacuum
  • Install new air filter. Be sure it is sealed around the perimeter (illus 3)
  • Replace cover and fasten
How to Buy Air Filters on eBay 05

 

eBay makes it easy to find the right air filter for your car. You can do a simple keyword search for “air filter” from the homepage, but you will see that this brings up air filters for all types of machines and systems in the home and elsewhere. You can narrow down the search results by selecting eBay Motors and then continuing to click on subsequent category filters. A better way to use the keyword search function is to type in as much information as you have at the outset, such as “air filter 1994 Chevy Cavalier” or “2006 Prius air filter.” Instead of using the keyword search, you can simply navigate through categories from eBay’s homepage, starting with eBay Motors and continuing through auto parts to the air filter section. If you know the specific part number needed for your vehicle, you can also check out online auction sites and Internet retailers.

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