* Under the hood in the fuse box: This is the most common location. The fuse box is typically located near the battery, often under a cover. Check the fuse box diagram (usually on the inside of the fuse box cover) to locate the fuel pump relay. It might be labeled "FUEL PUMP," "FP," or have a symbol that looks like a gas pump.
* Under the dash: Less common, but possible, especially if your Blazer has an under-dash fuse panel in addition to (or instead of) the one under the hood. Again, consult the owner's manual or a fuse box diagram if you have one under the dash.
To be absolutely certain:
1. Consult your owner's manual: This is the best resource, as it will give the precise location for your specific vehicle.
2. Check online forums: Search online forums specific to 1993 Chevy Blazers. Many owners have documented the location of their fuel pump relays. Include your engine size (e.g., 4.3L V6, 5.7L V8) in your search for more accurate results.
Without knowing your specific Blazer's configuration, I can't pinpoint the exact location. Always remember to disconnect the negative battery terminal before working with any electrical components.
