To access the fuel pump, you'll need to:
1. Disconnect the battery's negative terminal. This is crucial for safety to prevent sparks near fuel.
2. Lower the fuel tank. This involves:
* Releasing the fuel tank straps: These are usually located on the top or sides of the tank, and will require loosening or removing bolts or clamps.
* Disconnecting fuel lines: Carefully disconnect the fuel supply and return lines. You'll likely need to use fuel line disconnect tools to avoid damage or leaks. Have rags or absorbent material handy to catch any spilled fuel.
* Disconnecting the electrical connector: This is the connection for the fuel pump.
* Supporting the fuel tank: The tank is heavy and will require a jack and safety stands or a fuel tank support strap.
3. Access the fuel pump: Once the tank is lowered, you should be able to see the access panel on top of the tank. This panel will have to be removed to reach the fuel pump.
4. Remove and replace the fuel pump: The specific procedure for removing the pump from the access panel varies depending on the type of fuel pump assembly. Consult a repair manual specific to your 1986 Cutlass Supreme for detailed instructions.
Important Considerations:
* Repair Manual: A repair manual specific to your vehicle's year and model is strongly recommended. It will provide detailed diagrams, instructions, and torque specifications to ensure the job is done safely and correctly.
* Safety: Fuel is flammable. Work in a well-ventilated area, away from open flames or sparks. Wear safety glasses and gloves.
* Professional Help: If you're not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic. Replacing a fuel pump is more complex than it sounds and improperly doing so can be dangerous.
Remember to always refer to a repair manual for precise instructions and diagrams specific to your vehicle. A Haynes or Chilton manual for your year and model Cutlass Supreme will be invaluable.
