Disclaimer: Working with fuel systems can be dangerous, especially if done improperly. Always follow safety precautions and consult a professional if you're not confident or are encountering issues.
Prepare and Safety Measures:
1. Park your vehicle on level ground and turn off the engine. Engage the parking brake and chock the wheels.
2. Locate the vehicle's fuel tank and relieve the fuel pressure by disconnecting the fuel line or following your vehicle's service manual.
3. Wear appropriate safety gear, including gloves and eye protection, to handle fuel and vehicle parts.
Remove the Fuel Tank:
4. Locate the fuel tank under the vehicle. Refer to your vehicle's service manual or guides to determine the specific location and mounting hardware.
5. Support the fuel tank using a jack or appropriate stands to prevent it from dropping unexpectedly.
6. Disconnect any electrical connections or hoses connected to the fuel tank. Remember where each connection goes to avoid mix-ups during reassembly.
7. Remove the nuts or bolts holding the fuel tank in place. Some models have a rubber retaining strap holding the tank. Carefully lower the fuel tank once disconnected.
Access and Replace the FSU:
8. Depending on the 1987 Toyota Pickup model, the fuel sending unit may be accessible from the top (in-tank FSU) or via an external access port.
9. If the FSU is accessible from the top, open the fuel tank to reveal the sending unit. Remove any bolts, wires, or fasteners securing the FSU. Carefully remove the faulty unit from the fuel tank.
10. If the FSU is accessed through an external access port, locate the FSU's cover and remove it. Disconnect any wires or electrical connectors attached to the sending unit. Remove the FSU by unscrewing or unfastening it.
Install the New FSU:
11. Make sure to have the replacement FSU ready. It's crucial to obtain a unit compatible with your vehicle's fuel tank and fuel type.
12. Carefully insert the new FSU assembly into the fuel tank, aligning it properly.
13. Secure the FSU in place by tightening the mounting hardware.
14. Reconnect any wires, connectors, and hoses. Remember the proper arrangement and orientation of these connections.
Reinstall the Fuel Tank:
15. Carefully lift and reinstall the fuel tank into its original position.
16. Reconnect any hoses, electrical connections, and support straps removed earlier.
17. Make sure the fuel tank is secure before lowering the vehicle.
Test and Finalize:
18. Restore fuel pressure by reconnecting the fuel line or following your vehicle's service manual.
19. Start the vehicle and observe for proper fuel gauge operation.
20. Check for any fuel leaks or unusual sounds coming from the fuel tank area.
Remember that the steps outlined may vary slightly based on your specific 1987 Toyota Pickup model and fuel system. It's advisable to refer to the vehicle's service manual or consult with a knowledgeable mechanic if you encounter any difficulties or challenges during the process.
