Cabin Air Filter Replacement 2002 Ford Focus
Cabin air filters can sometimes be difficult to replace, but on these cars, it's very easy. Make sure to replace it every 30,000 miles or so. This service interval will vary. If you notice a loss in air flow, a foul smell, dust coming out the vents, or you have allergies, replacing the cabin air filter might help. Sometimes you'll see some really nasty stuff collected in the air filter.