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Unfortunately, if the 01 is anything like my 99, you'll have to drop the fuel tank. The pump is all one unit with the sending unti attached. It's not too difficult, but does take some time ~5 hours for a rookie like me. Be careful no to crimp any of the fuel hoses. I bought a Chilton and Haynes manual and they both gave good guidance on how to get the task done.

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15y ago
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Q: How do you change the fuel pump on a 2001 gmc jimmy?
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