Genuine Chevrolet Impala Fuel Pump

Chevrolet Impala Fuel Pump Parts Questions & Answers

• Fuel Tank Fuel Pump Module Kit (Acdelco)
  19301258
  Q: How do you remove the fuel pump/fuel level sending unit module?

  A: To remove the fuel pump/fuel level sending unit module, start by relieving the system fuel pressure and equalizing tank pressure by removing the fuel filler cap. Then, disconnect the cable from the negative battery terminal and proceed to remove the Fuel Tank. Next, disconnect the fuel supply line from the fuel pump/module, being careful to soak up any spilled fuel. Mark the orientation of the fuel pump in relation to the fuel tank for proper realignment during installation. Use water pump pliers to unscrew the locknut, or use a hammer and brass punch if it's tight. Raise the fuel pump/module to disconnect the quick-connect fitting for the ventilation harness, and remove the assembly without damaging the fuel inlet strainer or the fuel level sensor float arm and float. For installation, inspect the O-ring and fuel pump inlet strainer, replacing if necessary. Insert the fuel pump/module into the tank, connecting the ventilation hose before locking it into place. Ensure proper alignment and avoid damaging any components. Finally, reverse the removal steps for installation.
• Fuel Tank Fuel Pump Module Kit
  19331969
  Q: How do you replace the fuel pump/fuel level sensor module?

  A: To remove the fuel pump/fuel level sensor module, begin by placing it on a clean workbench surface. Then, disengage the fuel level sensor wiring harness from the harness guide and disconnect the fuel level sensor electrical connector from the pump module cover.
• Fuel Tank Fuel Pump Module Kit
  19332072
  Q: What does the fuel pump operation check involve?

  A: To check the fuel pump operation, listen for its whirring sound when the ignition key is turned on. If not heard, inspect the fuel pump fuse, relay, and wiring. If these are fine, the pump may be defective. Use a fuel pressure gauge to measure fuel pressure at the Schrader valve-type test port on the fuel feed line. Compare the pressure to the specified level. If lower, there may be a fuel system restriction or faulty regulator. If higher, replace the regulator. After turning off the engine, fuel pressure shouldn't drop more than 8 psi for five minutes. Check for fuel leaks, disconnect the gauge, and replace the test port cap.