Here's a general overview. This is not a substitute for a repair manual specific to your 1988 Chevy Nova. Always consult a repair manual for your specific vehicle model and engine. Differences exist between engine types and trim levels.
Safety First!
* Disconnect the negative battery cable. This is paramount to prevent sparks.
* Work in a well-ventilated area. Fuel vapors are flammable and hazardous.
* Wear safety glasses and gloves.
* Have a fire extinguisher readily available.
* Use proper fuel-resistant tools and containers.
Procedure (General Steps):
1. Prepare the vehicle: Jack up the car and securely support it on jack stands. Locate the fuel pump (usually in the tank, under the rear seat or in the trunk depending on the model).
2. Reduce fuel tank pressure: Many fuel tanks have a pressure relief valve, and you may need to relieve pressure by carefully opening the gas cap to release pressure before working on the tank itself. There may be a pressure release valve under the rear of the car.
3. Access the fuel pump: This will vary drastically depending on your Nova's configuration. It *might* involve:
* Dropping the fuel tank: This is often necessary, requiring disconnecting the fuel lines, the fuel sending unit, and the tank straps. You will likely need to drain the fuel tank before this step (consider using a siphon pump).
* Accessing through an access panel in the trunk: Some models have an access panel under the rear seat or in the trunk for easier access.
4. Disconnect the fuel lines: This is critical. You'll need to disconnect the fuel supply line and the fuel return line. Clamp off these lines before disconnecting to prevent fuel spillage. You'll need a wrench or line wrench to loosen the lines. Have rags ready to catch any fuel spillage.
5. Disconnect the electrical connector: Disconnect the electrical connector from the fuel pump.
6. Remove the fuel pump: This often involves removing retaining bolts or clips holding the fuel pump assembly in place. Be careful not to damage the fuel sender unit (if integrated).
7. Install the new fuel pump: This is the reverse of the removal process. Ensure the new pump is properly seated and secure.
8. Reconnect everything: Reconnect the electrical connector, fuel lines, and any other components you disconnected. Tighten all connections securely.
9. Lower the fuel tank (if applicable): Carefully lower the fuel tank back into place and secure it.
10. Reconnect the battery cable: Once you've double-checked all connections, reconnect the negative battery cable.
11. Prime the fuel system: You might need to cycle the ignition key several times (without starting the engine) to prime the new fuel pump and fuel system.
12. Start the engine: Start the engine and check for leaks.
Important Considerations:
* Fuel pump replacement kits: Often, the replacement fuel pump comes with new fuel lines, seals, and other components, making the replacement process more straightforward.
* Fuel tank access: The difficulty of accessing the fuel pump can range from relatively easy to extremely difficult depending on the vehicle's design and your own comfort level.
* Professional help: If you're not comfortable performing this repair yourself, take your Nova to a qualified mechanic. This is a job that can become very complex.
This is a generalized guide. Refer to a repair manual for your specific 1988 Chevy Nova model and engine to get detailed instructions and diagrams. Improperly performing this repair could result in damage to your vehicle or personal injury. Safety should be your top priority.
