GM 15295456 Fuel Pump Kit

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The next step is to remove the fuel tank.

To disassemble the fuel pump/fuel level sensor module, start by removing it from the vehicle. Place it on a clean workbench surface and disconnect the two fuel level sensor leads from the harness clips on the side of the module. Next, disconnect the positive and ground wires from the top of the fuel pump and detach the connector housing from the bottom of the fuel pump cover by disengaging the locking tab. To remove the fuel level sensor unit, depress the locking tab and slide it toward the upper end of the fuel pump assembly until it's free of its retaining rails. To reassemble, slide the fuel level sensor unit back into place until you hear a click, ensuring that the float arm is correctly aligned. Verify this by placing the fuel pump module on a flat horizontal surface and checking that the float lays flat. Finally, reinstall the module following the reverse of the removal process.

If the fuel pressure is higher than specified, the fuel pressure regulator or return side fuel lines should be checked.

Before installing the fuel pump, you should inspect the O-ring for cracks, tears, and deterioration, and replace it if necessary. You should also inspect the fuel pump inlet strainer and clean it if dirty.

If the fuel pressure regulator is okay, the fuel pump module or fuel injectors may be clogged or defective.

Reinstall the module following the reverse of the removal process.