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This article brought to you courtesy of Karen Johnston, of all About Automotive, Gresham Outlook Insider Automotive Expert.

Karen Johnston

In the article last month, we discussed the operation of the fuel system and a couple of emission systems that are related to this fuel system. We ended discussing how the Evaporative Emissions System works. The computer in your vehicle is programmed to warn of any type of leak in this system. Little things like a loose gas cap or a pin prick size hole in one of the lines can cause your check engine light to illuminate. The computer will store the code indicating that a leak is recognized, but then it needs to be located and repaired.

The best way to maintain your fuel system is listed below:

Keep the fuel tank level at ¼ of a tank or above. Most fuel pumps in newer vehicles are located in the fuel tank and it can cause some extreme wear to run the vehicle very low or out of fuel often.

If your vehicle has an in-line fuel filter, that should be replaced about every 15,000 miles or on an annual basis. A plugged fuel filter can cause a restriction that can cause damage to the fuel pump.

It is recommended to have a fuel system cleaning service performed about every 2 years or 20,000 to 30,000 miles to keep the fuel injectors clean. This helps lower emissions, increase the longevity of the fuel injectors and improve performance and gas mileage.

If your check engine light comes on, it is recommended to have it diagnosed and repaired ASAP.

Maintaining the fuel system of your vehicle is pretty simple and fairly inexpensive. Having a professional with the proper equipment perform these services are crucial in the maintenance of todays vehicles. Happy Motoring!

All About Automotive

139 NW 2nd Street

Gresham, OR 97030


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