* Under the hood in the fuse box: This is the most common location. The fuse box is typically located near the battery. The relay itself might be labeled, or you'll need to consult your owner's manual or a wiring diagram to identify it.
* Inside the passenger compartment fuse box (under the dash): Less common, but possible. Again, consult your owner's manual or a wiring diagram to locate the correct relay.
To find it definitively:
1. Consult your owner's manual: This is the best place to start. The manual will have a diagram showing the fuse and relay box locations and what each relay controls.
2. Use a wiring diagram: A wiring diagram specific to your 1998 S10 Blazer's year, engine, and trim level will show the location and circuit of the fuel pump relay. You can find these online (often for a fee) or at a parts store.
3. Check online forums: Search online forums dedicated to Chevy S10 Blazers. Owners often post about maintenance, repairs, and the locations of specific components.
Important Note: Before working on any electrical components, disconnect the negative terminal of your battery to prevent accidental shorts or damage.
