This is how I accessed the fuel pump on my 2001 GMC Yukon XL.
This is the 3rd time I have had to replace the fuel pump in this truck over it's 220K + mile lifetime. the other two times I dropped the tank to do it. Normally not too hard to drop the tank, but it is cold, wet, and my tank is half full.
I suspect the first time the pump went out was due to constantly running the truck on empty. The next two times were probably because I got a cheap ($235) replacement. At least it had a lifetime warranty. (I should have cut the floor the first time lol)
I know there are several videos on this subject. I combined the information and came up with a method that worked for me.
I did put a disclaimer at the beginning of the video. It is a safe bet that your car will not fall apart if you attempt this, but I did cut into the floor panel to access the pump and I make no representations or guarantees that this is a safe thing to do.

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