DIY: How to Replace your Air Filter

Difficulty Level

Tools/Supplies Needed:

• screwdriver
• socket and ratchet
• new replacement air filter

Procedure:

• start by gaining access to your engine bay and locating the air box
• disconnect any sensors if needed
• remove the intake hose using a screwdriver or socket and ratchet if needed
• open air box by either disconnecting clips or removing bolts, styles will vary depending on manufacturer
• move the top cover of the air box out of the way
• now remove the air filter and inspect it to determine if it needs replacement
• hold it up to the light to see if you can see light through the filter or inspect how much dirt is in the filtration material
• regardless if you are replacing the filter or not, it is a good practice to clean the air box
• the air box can be cleaned by using a vacuum or wiping it down, also ensure the drains aren't plugged if equipped
• reinstall the old filter or install the new filter into the housing
• ensure it sits connectedly around the ledge as this can cause problems when closing the air box
• close the air box
• reinstallation of other parts in reverse

Video tutorial on how to replace the air filter on your vehicle. Having a dirty or plugged air filter can cause a variety of issues such as poor fuel mileage, decreased performance, and idling issues. Maintenance intervals depend on what vehicle manufacturers suggest, but as a generic specification it's good to change your air filter at about 30,000km or about 20,000 miles. This will also be dependant on your driving conditions, if you're located in an area with more or less dust or airborne contaminants. This particular tutorial was done on a 1998 Ford Ranger 2.5L 4 cylinder. The other vehicle I demonstrated in the video was a 1997 BMW 540i E39 4.4L V8 M62.