For most newer Tahoes (roughly 2007 and later), the fuel filter is integrated into the fuel pump assembly located inside the fuel tank. This means you can't easily access it without dropping the fuel tank. This is a more involved job typically done by a mechanic.
Older Tahoes (before roughly 2007) might have a separate, externally accessible fuel filter. This would typically be located along the frame rail near the fuel tank, but the exact location can vary slightly.
To find the precise location for *your* Chevy Tahoe, you need to:
1. Find your vehicle's year and engine type. This information is usually on a sticker inside the driver's side doorjamb.
2. Consult your owner's manual. The manual will have diagrams and specifications specific to your vehicle.
3. Search online for a repair manual or diagrams. Websites like Chilton and Haynes offer repair manuals with detailed diagrams showing fuel system components. Search for "[Your Tahoe's Year and Engine] fuel filter location."
4. Use a parts store website. Many online parts stores allow you to search by vehicle year, make, and model, and then show you diagrams of the fuel system.
Without knowing your specific Tahoe's year and engine, I cannot give you a precise location. Accessing the fuel filter, especially if it's in the fuel tank, should only be attempted by someone with mechanical experience and the proper safety precautions.