On a 2002 Jeep Wrangler (TJ), the fuel filter is located
on the frame rail, near the fuel tank, typically on the driver's side. However, the exact placement can vary slightly depending on the specific engine (4.0L or 2.5L) and any modifications that might have been made to the vehicle. It's usually a cylindrical canister-shaped filter.
To be certain, I recommend checking your owner's manual or a reliable online repair manual specific to your year and engine. Pictures in those resources will greatly aid in its identification.
