* Under the hood in the fuse box: This is the most common location. Check both the main under-hood fuse box and any smaller relay boxes that might be nearby. The relay itself might be labeled, or you might need to consult your owner's manual or a wiring diagram to identify it.
* Inside the passenger compartment fuse box (rare): Some models placed certain relays inside the cabin. This is less common for the fuel pump relay, but it's worth checking.
To find it:
1. Consult your owner's manual: This is the best place to start. It should have a diagram of the fuse and relay boxes, indicating the location of the fuel pump relay.
2. Look for a diagram under the hood: Sometimes there's a diagram on the inside of the fuse box cover itself, showing the location and function of each relay.
3. Use a multimeter: If you can't find it visually, you could use a multimeter to test relays individually until you find the one that controls the fuel pump circuit. WARNING: This requires some electrical knowledge and safety precautions.
4. Online resources: Search online for "1997 Chevy Blazer fuel pump relay location" along with your specific trim level (e.g., "1997 Chevy Blazer 4x4 fuel pump relay location"). You might find forum posts or diagrams from other owners.
Remember to disconnect the negative battery terminal before working with electrical components to avoid shocks or accidental short circuits. If you're unsure about any part of this process, it's best to consult a qualified mechanic.
