Here's a general outline. Specific steps may vary slightly depending on engine type (small block Chevy, etc.) and whether you have a fuel-injected or carbureted system. Consult a repair manual specific to your 1987 El Camino's engine and fuel system for precise details and diagrams. A Haynes or Chilton manual is a good investment.
1. Preparation:
* Safety First: Disconnect the negative battery terminal.
* Gather Tools: You'll need jack stands, a jack, socket wrench set (metric and possibly SAE), screwdrivers (Phillips and flathead), fuel line disconnect tools, wrenches for fuel lines (size varies), possibly a fuel pump pliers or strap wrench, rags, safety glasses, and gloves. A fuel pump pressure gauge can be helpful to check pressure before and after replacement.
* Locate the Fuel Pump: On most 1987 El Caminos, the fuel pump is located inside the fuel tank. This means you will need to drop the tank.
* Drain the Fuel Tank: This is crucial to reduce the risk of spillage and make the job easier. Use a siphon pump or carefully drain the fuel into an approved container.
2. Dropping the Fuel Tank:
* Disconnect the Fuel Lines: Carefully disconnect the fuel lines leading to and from the fuel pump. Use appropriate tools to avoid damage. Some lines might have clamps that require special pliers. Be prepared for fuel spillage. Use rags to absorb any leaks.
* Disconnect the Electrical Connector: Unplug the fuel pump's electrical connector.
* Disconnect the Fuel Sender Unit (if applicable): This is often part of the fuel pump assembly. This will often require disconnecting a wire and float arm.
* Locate and Disconnect Tank Straps: The fuel tank is typically held in place by straps. Carefully loosen and remove these straps.
* Lower the Fuel Tank: Carefully lower the fuel tank. It's heavy and often contains some residual fuel, so use jack stands for support. You might need to loosen the exhaust system slightly for clearance.
3. Replacing the Fuel Pump:
* Access the Fuel Pump: Once the tank is lowered, you'll have access to the fuel pump assembly (this might be integrated with the fuel sender). The access method varies depending on the fuel pump design. You may need to remove a cover or access panel.
* Remove the Old Fuel Pump: Carefully disconnect the pump from the tank. This will often involve unbolting or unclipping it.
* Install the New Fuel Pump: Install the new fuel pump, ensuring it's seated correctly. Make sure all connections are secure.
* Reinstall Fuel Sender: If necessary, reconnect the fuel sender carefully.
4. Reassembly:
* Raise the Fuel Tank: Carefully raise the fuel tank back into position.
* Reconnect the Fuel Lines: Reconnect the fuel lines, ensuring a tight seal to prevent leaks.
* Reconnect the Electrical Connector: Plug in the fuel pump's electrical connector.
* Reconnect Tank Straps: Secure the tank straps.
* Reconnect the Battery: Reconnect the negative battery terminal.
5. Testing:
* Check for Leaks: Inspect all fuel line connections for leaks.
* Start the Engine: Start the engine and listen for unusual noises. Check for any fuel leaks.
* Check Fuel Pressure: If you have a fuel pressure gauge, check the fuel pressure to ensure it is within the specified range for your vehicle.
Important Considerations:
* Fuel System Pressure: Some fuel systems have significant pressure. Releasing this pressure improperly can be dangerous. Consult your repair manual for the proper procedure.
* Fuel Type: Use the correct type of fuel for your El Camino's engine.
* Professional Help: If you are not comfortable performing this repair, it's best to take your El Camino to a qualified mechanic.
This is a general guide. Always consult a repair manual specific to your 1987 El Camino before starting this repair. Incorrectly installing the fuel pump can lead to damage to your vehicle or even serious injury. Remember safety first!
