Here's a general overview. Specific steps may vary slightly depending on the engine (2.2L or 2.4L) and whether you have a sedan or coupe. Always consult a repair manual specific to your vehicle's year, make, model, and engine for detailed instructions and diagrams.
1. Preparation:
* Safety First: Disconnect the negative battery cable. Allow the fuel system to depressurize. This may involve running the engine until it stalls after several attempts to start, to use up the fuel in the lines. Consult your repair manual for the safest depressurization method. You might need to relieve pressure with a special tool.
* Gather Tools: You'll need jack stands, a jack, various sockets and wrenches, screwdrivers, a fuel pump removal tool (often a special socket or strap wrench), a new fuel pump, fuel line disconnect tools (may be needed), safety glasses, and gloves.
* Vehicle Preparation: Raise and securely support the vehicle using jack stands. Never work under a vehicle supported only by a jack.
2. Accessing the Fuel Pump:
* Locate the Fuel Pump Access Panel: This is typically located under the rear seat (sedan) or in the trunk (coupe/hatchback). You may need to remove some interior panels or trim to gain access. Consult your repair manual for the exact location.
* Remove the Access Panel: This usually involves removing screws or clips.
3. Fuel Pump Replacement:
* Disconnect Electrical Connections: Carefully disconnect the electrical connector from the fuel pump.
* Disconnect Fuel Lines: Use fuel line disconnect tools to carefully disconnect the fuel lines from the pump. Be prepared for some fuel spillage; have rags handy.
* Remove the Fuel Pump Assembly: This is where the special fuel pump removal tool is usually needed. It secures the pump and allows you to remove it from the tank. The process can vary significantly depending on your car's design. Some models have a retainer ring, while others require more intricate removal.
* Install the New Fuel Pump: Carefully install the new fuel pump, ensuring it's seated correctly.
* Reconnect Fuel Lines and Electrical Connections: Reconnect the fuel lines and electrical connector, ensuring tight and secure connections.
4. Reassembly:
* Replace the Access Panel: Securely reinstall the access panel.
* Lower the Vehicle: Carefully lower the vehicle from the jack stands.
* Reconnect Battery Cable: Reconnect the negative battery cable.
5. Priming the Fuel System (Important!): After reassembly, you may need to prime the fuel system. This often involves turning the ignition key to the "on" position several times (without starting the engine) to allow the pump to fill the lines. Your repair manual will have the correct procedure.
6. Testing:
* Start the Engine: Try starting the engine. If it doesn't start, double-check all connections and refer to your repair manual for troubleshooting steps.
Disclaimer: This is a general overview and may not be entirely accurate for your specific vehicle. Always consult a repair manual specific to your 1998 Chevy Cavalier before attempting this repair. If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Improper fuel system repair can be extremely dangerous.
