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Posted on Oct 20, 2010

How do I change fuel filter on my 8.1L 2003 2500Hd Silverado?

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  • Posted on Oct 21, 2010
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Under the driver side floorboard on inside of the frame rail, The fuel filter takes a 20mm wrench and the fuel line takes a 16mm wrench

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I need to change the fuel filter in my 1999 chevy silverado and can't find the fuel line or the filter (as easy as it's supposed to be via youtube.com).

Hello, my name is Ben and I can help you with this. I have the same truck and I change my fuel filter every 10,000 miles. The fuel filter is under the truck directly under the driver's seat, mounted on the inside of the frame rail. There are two nuts which hold the fuel filter bracket to the frame. Always use two wrenches when removing the fuel lines, if you only use one wrench there is a strong chance of damaging the filter casing. Also, make sure you mount the new filter in the proper direction, there should be a small arrow on the side of the filter. If you need any further clarification, just ask, Ben.
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Check for a dirty fuel filter, or it's a fuel pump relay/pump. If it has never had a fuel pump changed on it, it will say AC DELCO on the filter. The fuel filter is located under drivers side door along the frame. Fairly easy to change, and if this doesn't fix the problem, then it is the fuel pump relay/fuel pump. *Hint... it is easier to remove the bed of the truck than to drop the tank out. From experience it is much faster and easier to access.

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