* Under the hood in the fuse/relay box: This is the most common location. The fuse box is usually located near the battery, often under a cover. The relay itself might be labeled, or you'll need to consult your owner's manual or a wiring diagram to identify it.
* Under the dash: Less common, but possible. Check the fuse panel under the dashboard.
To find it definitively:
1. Consult your owner's manual: This is the best place to start. It will have a diagram showing the location of all fuses and relays.
2. Use a wiring diagram: A wiring diagram specific to your 1989 Pontiac Firebird 2.8L will show the location and circuit of the fuel pump relay. You can find these diagrams online (often on forums dedicated to Firebirds) or at auto parts stores.
3. Check online forums: Search forums dedicated to Pontiac Firebirds, using keywords like "1989 Firebird 2.8 fuel pump relay location." Other owners may have already posted photos or details.
Remember to always disconnect the negative battery terminal before working with electrical components. Improper handling can lead to short circuits and damage.
