How do you replace the fuel filter located on a 2002 Chevy Trailblazer?
The fuel filter is located on the driver's side, centered between the front and rear tires, along the inside of the frame. There happens to be a hole in the plastic covering that runs from just under the transmission back to the rear axle. If you can manage to remove the filter without removing the cover, you're better at this than I am. After removing the cover, which entails removing a cross bar, four bolts and two nuts, the rest is easy. Make sure you have something to catch the gas that will drain from both lines. Squeeze the the blue clips on both lines to pop them off the filter. (This is when all the gas drains out). The filter is held in place with one screw (phillips) located above the filter. Remove old filter and replace with new. The new filter should be labled with "OUT". That line is the line that goes up to the engine. You will need to remove the blue clips from the old filter and snap them onto the new filter. Snap the fuel lines on the filter, tighten strap that holds the filter in place, replace the plastic cover then you're done. Recommend starting your vehicle before replacing the cover, just in case.