Here's a general outline. Consult a repair manual specific to your 1998 Chevrolet Malibu for detailed instructions and diagrams. This is crucial as variations exist between models and engine types. A Haynes or Chilton manual is a good investment for this type of work.
1. Safety First:
* Disconnect the negative battery terminal. This prevents accidental sparks.
* Relieve fuel pressure. This is critical! Consult your repair manual for the specific procedure for your car. It usually involves repeatedly cycling the ignition switch until the fuel pump stops running. Some vehicles have a schrader valve on the fuel rail that can be used to release pressure.
* Work in a well-ventilated area. Gasoline fumes are highly flammable and dangerous.
* Wear safety glasses and gloves.
2. Accessing the Fuel Pump:
* Locate the fuel pump access panel. This is typically located under the rear seat. You'll likely need to remove the rear seat or a section of it. Consult your repair manual for the exact location and removal procedure for your Malibu.
* Once access is gained, you'll likely see a protective cover over the fuel pump assembly. This may require removal of fasteners.
3. Removing the Fuel Pump:
* Disconnect the electrical connector. There's usually a locking tab or clip to release it.
* Disconnect the fuel lines. These are typically held in place with clamps. You'll need the correct size fuel line clamps pliers to remove and install them securely. Have rags ready to absorb any spilled fuel.
* Remove the fuel pump retaining ring. This may involve turning a ring or a bolt-type retainer. Again, consult your manual for specifics.
* Carefully lift the fuel pump assembly out of the tank. The assembly will likely contain the pump, strainer, and other components.
4. Installation (Reverse of Removal):
* Install the new fuel pump assembly. Ensure it sits correctly and all parts are properly seated.
* Reconnect the fuel lines. Secure the lines with the clamps.
* Reconnect the electrical connector.
* Reinstall the retaining ring.
* Reinstall the access panel and rear seat.
* Reconnect the negative battery terminal.
* Prime the fuel system. Consult your manual for the specific procedure. This may involve several cycles of the ignition key.
Important Considerations:
* Fuel pump replacement often requires specialized tools. Don't attempt this without the proper tools.
* If you're not comfortable working on your vehicle, take it to a qualified mechanic. Improper fuel system repair can be dangerous.
* Dispose of old fuel pump parts properly. Gasoline is a hazardous material.
This is a general guide. Always refer to a repair manual specific to your 1998 Chevrolet Malibu for detailed instructions and safety precautions. The procedures can vary slightly depending on the model and engine. Failing to follow the proper steps could lead to significant damage or injury.
