* Under the hood in the fuse box: Many 1997 Blazers have the fuel pump relay located in the under-hood fuse box (often labeled Power Distribution Center or PDC). This fuse box is typically positioned near the battery. Check your owner's manual or the fuse box cover itself for a diagram showing the relay locations. Look for a relay that's labeled "Fuel Pump" or has a diagram indicating a fuel pump symbol.
* Under the dashboard (less common): In some cases, the fuel pump relay might be located inside the fuse panel under the dashboard. This is less common but possible. Again, your owner's manual is the best resource.
To find it reliably:
1. Consult your owner's manual: This is the most accurate way to determine the location of your fuel pump relay. The diagram will show its location in the fuse box.
2. Check the fuse box diagrams: Even without the manual, the fuse box cover often has a diagram showing the location and function of each relay and fuse. Look for one labelled "Fuel Pump" or with a corresponding symbol.
3. Use a multimeter (advanced): If you can't find it visually, a multimeter can help. You can test the circuits to locate the relay that controls the fuel pump. However, this is advanced and requires some electrical knowledge; if unsure, consult a professional.
Remember to always disconnect the negative battery cable before working with any electrical components in your vehicle to prevent accidental shorts or injury.
