Here's a general outline. Specific steps may vary slightly depending on the exact engine (2.2L or 2.5L) and your vehicle's condition. Consult a repair manual specific to your 1990 Plymouth Acclaim for detailed instructions and diagrams. This is crucial to avoid mistakes.
Tools you'll likely need:
* Socket set and wrenches: Various sizes will be needed.
* Fuel line disconnect tools: These are crucial for safely disconnecting the fuel lines without damaging them.
* Jack and jack stands: To safely lift the car.
* Wheel chocks: For added safety.
* New fuel pump: Ensure you get the correct one for your engine.
* Fuel filter (optional but recommended): Replace this while you're at it.
* Safety glasses and gloves: Protect yourself from fuel and sharp objects.
* Wrench for fuel tank straps (may require special tool)
* Shop rags or absorbent material: To clean up any spilled fuel.
* Torque wrench: To tighten bolts to the manufacturer's specifications.
General Steps (Consult your repair manual for specifics):
1. Safety First: Disconnect the negative battery terminal.
2. Prepare the Vehicle: Raise the rear of the car securely using a jack and jack stands. Always use wheel chocks for safety.
3. Access the Fuel Pump: This usually involves dropping the fuel tank. The procedure involves:
* Removing the fuel tank straps: These may be accessed from under the car, sometimes requiring removal of other components.
* Disconnecting the fuel lines: Use the proper disconnect tools to avoid damage. Have a container ready to catch any remaining fuel in the lines.
* Disconnecting the electrical connector: This is the connector for the fuel pump itself.
* Lowering the fuel tank: Carefully lower the tank, supporting it as you go. You may need to disconnect the tank vent line and fuel level sender.
4. Replace the Fuel Pump:
* Access the fuel pump: This is usually located inside the fuel tank. You may need to remove an access plate or the entire fuel pump assembly.
* Remove the old fuel pump: Carefully disconnect any remaining connections.
* Install the new fuel pump: Make sure it's installed correctly and securely.
5. Reassembly:
* Install the fuel tank: Carefully raise the fuel tank back into place, reconnecting all lines and connectors. Ensure the tank is seated properly.
* Reconnect the fuel lines and electrical connector: Double-check to make sure all connections are secure and leak-free.
* Reconnect the fuel tank straps: Tighten securely.
* Lower the vehicle: Carefully lower the vehicle to the ground.
6. Check for Leaks: Before starting the engine, carefully inspect all fuel lines and connections for leaks.
7. Start the Engine: Once you're confident everything is connected correctly and there are no leaks, reconnect the negative battery terminal and start the engine. Listen for any unusual noises from the fuel pump. Let the engine run for a few minutes to check for leaks.
8. Test Drive: Take the car for a short test drive to ensure the fuel pump is working correctly and there are no issues.
Important Considerations:
* Fuel Pressure: You might want to check fuel pressure before and after the replacement to confirm the problem was the pump. This requires a fuel pressure gauge.
* Fuel System Cleaning: Consider cleaning the fuel system while you're at it, especially if the old pump failed due to contamination.
This is a general guide; consult your repair manual for specific details and torque specifications. If you're not comfortable performing this repair yourself, it's best to take your car to a qualified mechanic. Working with fuel systems can be dangerous if not done properly.
