1995 GMC Yukon Owner's Manual - Page 291

I A CAUTION: Diesel fuel isflammable. It could start a fire if it gets onhot engine parts. You could beburned. Don't let too much fuel flow a from the air bleed valve, and wipe up any spilled fuel with cloth. 3. Close the air bleed valve. 4. Turn the ignition key t o START for I O to 15 seconds at a time until your engine starts. Fuel Filter Replacement(Diesel Engines) If you want to change the fuel filter yourself, here's how to do it: A CAUTION: Diesel fuelis flammable. It could start a fire if something ignites it, and you could beburned. Don't let it get on hot engine parts, and keep matches or otherignition sources away. First, drain any water from the filter following the procedure for draining water listed previously. Your vehicle's engine should be off until the end of the following procedure. 1 . Apply the parking brake. 2. Take off the fuel tank cap. This releases vacuum in the tank. 3. Unscrew and remove the ring nut from the top of the filter head. "I