To find the fuel filter, you'll likely need to:
1. Consult your owner's manual: This is the best place to start. It should have a diagram showing the location.
2. Use a repair manual (like a Haynes or Chilton manual): These manuals provide detailed diagrams and instructions specific to your engine.
3. Search online: Search for "[Your engine size] 1998 GMC Sierra fuel filter location" on Google, YouTube, or a forum dedicated to GMC Sierra trucks. Many helpful videos and photos exist showing the location.
Generally, fuel filters on vehicles of this era are often located near the fuel tank, along the fuel line, or sometimes closer to the engine. However, the exact placement varies considerably between engine types.
Warning: Working with fuel systems involves flammable materials. Always take appropriate safety precautions, such as disconnecting the battery's negative terminal and working in a well-ventilated area. If you're not comfortable working on your vehicle yourself, it's best to have a qualified mechanic perform this task.