Air Filter Checks

You vehicle's air filter is very important as it keeps many parts of the system clean and free of dirt. It is a good idea to check the filter regularly, as if becomes dirty and blocked, it will enable particulate matter to enter engine's combustion chambers. A clogged air filter can cause poor performance and shorten engine life.

You will probably need to change your air filter at least once a year; more often if you drive more than 15,000 miles a year or you live in a dusty area. Although many people leave the checking and changing of the air filter to the auto shop, it is in fact quite a quick and simple job that you can do yourself.

1. The air filter is typically enclosed in a relatively large black plastic casing near the center-top of the engine, although in older cars it may be set to one side.
2. The casing will be held together either by large metal clips, which may simply be prised open, or by a wingnut or several long screws.
3. Once you've opened the casing, you'll see the air filter inside; this is usually a bright yellow or orange color.
4. Pull the filter out and hold it up to the light. Bend the filaments back and look inside the crevices to see how much dirt and grime has accumulated.
5. Replace the filter with a new one if it looks very dirty, and particularly if the grime has accumulated in the center section of the filter.
6. Close the casing back up and secure it firmly using the clips or screws.