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I think the easiest way is to remove the 4 bolts that hold the box of the truck on. Once these are removed, you and a couple helpers can lift and slide the box back about 18 inces to get access to the top of the fuel tank. You can easily remove the fuel pump/sending unit from the top of the tank now. This is an easier way than lifting the truck and dropping the tank.

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15y ago
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Q: How do you change a fuel pump on a 2001 GMC Sierra?
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