Fuel Tank Cleaning

WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages. Whenever the fuel tank is cleaned, the fuel pump fuel strainer must be inspected. If the fuel pump fuel strainer is contaminated, the fuel pump fuel strainer must be replaced and the fuel pump must be inspected.

Remove the fuel tank, if not already removed. Remove the fuel sender assembly from fuel tank, if not already removed. Inspect the fuel pump inlet for dirt and debris. If dirt and debris are found, the fuel pump needs to be replaced.

CAUTION: When flushing the fuel tank, handle the fuel and water mixture as a hazardous material. Follow all applicable local, state, and federal laws and regulations.

Flush the fuel tank with hot water. Pour the water out of the fuel sender assembly opening in the fuel tank. Rock the fuel tank in order to be sure that the removal of the water from the fuel tank is complete. Allow tank to dry completely before reassembly.

NOTE: Only use oil free compressed air to blow out the fuel pipes.

Disconnect the fuel pipes at the engine compartment. See FUEL LINE DISCONNECT FITTINGS . Clean the fuel pipes by applying air pressure in the opposite direction of the fuel flow. Connect the fuel pipes at the engine compartment. Replace the fuel filter. Install the fuel sender assembly. Install the fuel tank.