Here's a general outline. Specific steps may vary slightly depending on the engine (2.5L, 2.8L, or 3.1L) and body style. Always consult a repair manual specific to your 1989 Chevrolet Celebrity for detailed instructions and diagrams. This is crucial for accurate procedures and safety.
1. Preparation:
* Safety First: Work in a well-ventilated area. Have a fire extinguisher readily available. Wear safety glasses and gloves.
* Gather Tools: You'll need a socket set (metric), wrenches, screwdrivers (Phillips and flathead), fuel line disconnect tools, jack stands, jack, fuel pump pliers (highly recommended), possibly a fuel pressure gauge, rags, and a new fuel pump (ensure it's the correct one for your engine).
* Lower the Fuel Tank: This is the most labor-intensive part. You'll likely need to:
* Access the fuel tank access panel (usually located under the rear seat or in the trunk).
* Disconnect the fuel filler neck.
* Disconnect the fuel lines (carefully; fuel may leak). Use fuel line disconnect tools to avoid damaging the lines.
* Disconnect the electrical connector to the fuel pump.
* Lower the fuel tank using jack stands and appropriate support. Be extremely cautious to prevent damage to the tank and surrounding components.
* Drain the Fuel Tank (optional but recommended): Siphon or pump the fuel out of the tank to minimize the amount of fuel you're working around. This significantly reduces fire risk.
2. Fuel Pump Replacement:
* Access the Fuel Pump: Once the fuel tank is lowered, you'll need to access the fuel pump. This is usually done by removing a cover on top of the tank.
* Remove the Fuel Pump Assembly: This often involves removing the retaining ring or bolts holding the fuel pump in place. Use the fuel pump pliers to carefully remove the pump from the tank.
* Install the New Fuel Pump: Install the new fuel pump, ensuring it's properly seated and aligned.
* Reassemble: Reassemble the fuel pump assembly, securing it correctly.
3. Reinstallation:
* Raise the Fuel Tank: Carefully raise the fuel tank back into its position.
* Reconnect Everything: Reconnect the fuel lines (double-check for leaks!), the electrical connector, and the fuel filler neck.
* Refill the Fuel Tank: Add fuel to the tank.
* Reconnect the Battery: Reconnect the negative battery terminal.
* Check for Leaks: Thoroughly check for any fuel leaks around the fuel lines and connections.
* Start the Engine: Start the vehicle and check for proper operation. Listen for the fuel pump to prime.
* Check for Codes (optional): Some vehicles may require clearing diagnostic trouble codes after replacing the fuel pump.
Important Considerations:
* Fuel Pressure: If you have a fuel pressure gauge, check the fuel pressure before and after the replacement to ensure it's within specifications.
* Repair Manual: This is *absolutely essential*. It will provide specific instructions and torque specifications for your vehicle's model and year. Relying solely on a general guide like this can lead to damage or injury.
* Professional Help: If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. This is a potentially dangerous job if not done correctly.
This is a complex procedure. Improperly performing this repair could lead to serious injury or damage to your vehicle. Again, refer to a repair manual specific to your 1989 Chevrolet Celebrity before attempting this repair.
