technician holding a clean and dirty air filter comparison in the front seat of a car

When driving around town, your vehicle's engine needs clean air to burn the fuel – and it needs a lot. In fact, a typical vehicle needs about 216,000 gallons of air for every tank of gas. All that air passes through a filter that catches the dust and dirt. Eventually, the filter gets completely full, and because the filter can only hold so much, dirt starts getting through. At Harold's Used Auto Parts Inc in Philadelphia, we want to help you get the best air quality in your vehicle, but first, we want to explain the process of where this dirty air is going. 

This dirty air passes through the mass airflow sensor and starts to accumulate on the delicate sensor element. The mass airflow sensor measures how much air is getting into your engine. When the airflow reading is incorrect, your family car engine doesn’t get the proper amount of fuel. It runs rough and doesn’t perform as well as it should.

Eventually, the sensor is so damaged it needs to be replaced – which is pricey. In fact, you could buy a case or two of air filters for the cost of a sensor replacement. Of course, that dirty air keeps on going through to your family car engine where it’s burned along with the fuel, which dirties up your combustion chamber and increases harmful exhaust emissions – not a good thing for community air quality, not to mention our lungs.

When one of our technicians brings out your dirty air filter and recommends a replacement, remember the cost and poor performance that can be waiting for you down the road if you neglect this simple automotive service. Talk to us at Harold's Used Auto Parts Inc about general automotive care and maintenance, your safety is important to us and we have been providing quality auto repair services for cars, trucks, vans, and SUV for many years. Schedule your appointment with our team today!



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5347 Whitby Ave
        Philadelphia, PA

(215) 472-1552
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MON-FRI | 8:30 AM - 5:30 PM
SAT | 8:30 AM - 2:00 PM
SUN | CLOSED
Closed every third Saturday of the month