What Do the Filters in My Car Do?

The filters in your automobile have important jobs. Your car, truck, utility vehicle, or van has three or four filters that require regular maintenance. Each filter has a specific job to help keep your vehicle running as efficiently as possible. One of the filters protects you, as well. Trinity Auto Care talks about the filters in your automobile below, what they do, and when they need to be changed.

Air Filter

You’ll find the air filter in the engine. This filter takes the air that blows underneath the hood and purifies it before it is routed into the combustion chamber to be burned. It’s important to have clean air in the combustion chamber at all times; otherwise, you will have engine performance issues. Generally, the air filter needs to be changed once a year. It should be changed every 12,000 miles if you drive more than that each year. Keeping the air filter clean prevents engine performance issues.

Cabin Filter

The cabin filter is the filter that protects you. It purifies the air that blows into your vehicle’s passenger cabin whether you have the fan, air conditioner, or heater on. This filter can last 30,000 miles before it needs to be changed. If the cabin air filter gets dirty, you will feel sick when you drive your car because you are inhaling dirt, grime, and even exhaust. Changing the cabin filter in your automobile is just like changing your furnace filter. Doing so ensures you always have clean and fresh air.

Fuel Filter

Keeping the fuel clean is so important that the fuel filter actually purifies the liquid twice. Clean fuel is sprayed into the combustion chamber by the fuel injectors after it has run through the fuel filter. The fuel filter needs to be changed every 30,000 miles to ensure that you always have clean gasoline flowing into the engine. If the fuel filter gets clogged, your engine may become starved of fuel and it might stutter, stall, or not start at all.

Oil Filter

Finally, the oil filter cleans the oil at the end of its circulation cycle. As the oil flows through the engine, it not only lubricates engine parts but also cleans the parts of dirt and debris. Consequently, by the time the oil is routed back into the oil pan, it’s dirty and needs to be filtered before it circulates through the engine again. This filter needs to be changed every time you have your oil changed.

Trinity Auto Care has an auto service shop in White Bear Lake, MN, and an auto service shop in Blaine, MN. Call the one that is closest to you to schedule an appointment for a filter inspection.

Photo by ilze79 from Getty Images via Canva Pro

Accessibility Toolbar