However, precise location within that underhood fuse block varies slightly depending on the specific trim and options. You'll need to consult your owner's manual or a wiring diagram for your specific vehicle. The owner's manual will have a fuse block diagram showing the relay positions. A wiring diagram will show the fuel pump relay circuit.
Failing that, a good approach is:
1. Consult a repair manual: A Haynes or Chilton repair manual for your year and model Trans Am will have a detailed diagram and clear instructions.
2. Look for markings: The fuel pump relay itself may have markings indicating its purpose (sometimes abbreviated like "FP" or "Fuel Pump").
3. Use a multimeter: If you're comfortable working with electricity, you can use a multimeter to trace the fuel pump circuit and identify the relay. This is risky if you are not experienced in electrical systems.
4. Search online forums: Search Pontiac Trans Am forums (like on sites dedicated to classic cars) for discussions about the fuel pump relay location. Someone may have posted pictures or specific instructions.
Always disconnect the negative battery terminal before working on any electrical components.
