How do you replace a fuel pump on a 1991 Chevy Lumina?

Answer 1

goto your parts store and pick up a manaul for about $20.00

Yea, well apparently that wasn't helpful.

So here's what RTFM says (quick tip, read all the instructions to figure out what parts you're going to need. RTFM doesn't list them.):

1. Loosen or remove the gas cap to relieve the pressure in the tank, and leave it loosened or off. 2. Put the vehicle on jack stands or other suitable/safe supports. 3. Under the vehicle, detach the fuel pump electrical connector. It should be the only connector coming from the fuel tank. 4. Carefully lower the vehicle. 5. Start the engine and run until it stalls, then crank the starter for another 3 seconds to make sure the pressure is out. 6. Raise the car again, and reattach the fuel pump electrical connector. 7. Retighten the gas cap. 8. Disconnect the negative battery cable (may be necessary to lower the car; if so, jack it back up afterwards). CAUTION: Observe all applicable safety precautions when working around gasoline. Do not allow fuel spray or fuel vapors to come in contact with a spark or open flame. Keep a Class B dry chemical fire extinguisher near the work area. Never drain or store fuel in an open container due to the possibility of fire or explosion.

9. Thoroughly clean around all hose connections, and, using a suitable hand-operated pump, drain the fuel through the filler tube into an approved container. 10. Detach the quick-connects from the fuel sender assembly and remove the fuel lines.

11. Using tool J35731 (Google search or call an autoparts store, they'll find it), or an equivalent spanner wrench, remove the fuel sender lockring.

12. Lift the sender assembly out of the fuel tank.

13. Remove the sender O-ring from the top of the sender and discard.

WARNING: Do NOT run the fuel pump UNLESS it is submerged in fuel. Running it dry will cause serious damage to the fuel pump and may cause the pump to EXPLODE due to the oxygen in the air. USE EXTREME CAUTION!

14. Note the position of the fuel pump strainer on the fuel pump and, while supporting the pump assembly in one hand, twist the strainer off the pump and discard the strainer.

15. Detach the fuel pump electrical connector.

16. Remove the clamp from the fuel line at the top of the pump.

17. Hold the fuel sender upside down on a work bench and pull the fuel pump out of the lower mounting bracket. Once the pump is clear of the lower mounting bracket, tilt the pump outward and disconnect the pump from the sender assembly.

INSTALLATION:

18. Replace any attaching hoses or rubber sound insulators that show signs of deterioration.

19. Installt the rubber bumper and insulator on the fuel pump.

20. Hold the fuel sender upside down and install the fuel pump between the fuel pulse dampener and mounting bracket.

21. Attach the fuel pump electical connector

22. Install the retaining clamp on the fuel line

23. Install a new fuel pump strainer on the outer edge of the ferrule until fully seater. The strainer must be facing the same direction as it was before removal.

24. Position a new O-ring on the top of the fuel tank and install the sender assembly.

25. Install the lockring using the spanner wrench.

26. Reinstall the fuel tank.

27. Refill gas tank.

28. Connect the negative battery cable.

29. Say a little prayer, turn the ignition switch to the ON position (don't crank yet) to pressurize the fuel system and check for leaks. 30. Start car, and if everything is in proper working order, enjoy.