umm do you mean 2.3L not 2.8? There was no 2.8s in 90 lol. The fuel filter is located front of the gas tank in the middle of the car clamped to the side of the frame. Just use plies to take off the 2 plastic clamps and then pull of the hoses ( watch out for leaking gas in your eyes) and replace the filter. Make sure you put the filter in the correct flow direction. Easy job takes 10 min. Fuel filter is about 10-12 bucks.