Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Mazda B2300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Installation Note
- Clean the fuel pump mounting flange and the fuel tank mounting surface.
- Install a new fuel pump mounting gasket
- Install the fuel tank sending unit assembly with the float toward the rear of the fuel tank. Align the arrows molded into the fuel tank flange.
- Install the locking retainer ring while compressing the fuel tank sending unit assembly into the tank.
- Using the special tool, tighten the fuel tank sending unit assembly locking retainer ring until it locks in place.
- Install the fuel tank. See FUEL TANK REMOVAL/INSTALLATION .
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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