Hi there I have a 03 Tahoe and is the same thing. Just look inside the chasy under the drivers door you will see it just fallow the fuel lines can’t miss it. Now getting it out of there is a pain. On the tank side were the line comes in to the filter is held on by a 17mm if I’m not mistaken, that’s the easy side. On the other side, exit to the engine, is coupled by a clip on. You’re going to need a tool -Fuel Line Disconnect Set- you can buy a set at any parts store. Good luck.
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