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How to Replace a Fuel Pump in a Mazda6

by Contributor; Updated November 07, 2017

Items you will need

  • Fuel pump kit

  • Socket wrench set

  • Tool 49 F042 00

  • Torque wrench

How to Replace a Fuel Pump in a Mazda6. The fuel pump in a Mazda6 is electric so you should check the fuses and relays before inspecting the fuel pump itself. If you have fuel in your tank but your vehicle has difficulty getting fuel, you may need to clean your fuel pump or replace it entirely. The Mazda6's variety of styles and trim levels may affect your choice of fuel pump.

Determine the fuel pump that your Mazda6 will require. This depends on the make and model and engine size of your vehicle. Models made from 2002 to 2007 can have a 1.8 L, 2.0 L, 2.3 L, 3.0 L or 2.0 L diesel engine. Models after 2007 come equipped with a 1.8 L, 2.0 L, 2.5 L, 3.7 L or 2.0 L diesel engine.

Relieve the fuel system pressure and disconnect the negative battery cable with a socket wrench.

Access the fuel pump by taking out the rear seat and removing the service hole cover. Unplug the fuel pump's electrical connector and disconnect the hoses from the fuel tank.

Remove the fuel pump using tool 49 F042 00 while ensuring there is no gap between the tool and the fuel pump cap. You will now be able to remove the fuel pump and gaskets from the fuel tank.

Install the new fuel pump using the items included in the kit, especially the gasket. Align the start positions of the fuel pump cap and retainer and tighten the cap one full turn by hand. Use Tool 49 F042 00 and a torque wrench to finish tightening the cap to between 59 and 99 ft. lbs.

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