Where is the fuel filter located on a 1988 Suburban?
it is on the inside of the framerail on the passenger side
Facing your vehicle looking into your engine, have you knelt down and looked underneath behind the front bumper? You may find a tough plastic door, held on by a screw, with just a twist it should open and inside you'll find your fuel filter. Stamped on the cover of the door should be the words: "Fuel Filter". We had a suburban and this is where it was located.
You didn't mention the year of your suburban but basically four things can cause no fuel to carb. 1. No fuel in tank. 2. bad fuel pump (or fuel pump fuse if pump is electric and in fuel tank). 3. clogged fuel filter (if suburban is older filter is located in the carb inlet, if newer it is probably on the frame rail, drivers side. 4. a clogged or bent/pinched fuel line. Good luck.