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.
Main Fuel Pump Module
The main fuel pump module assembly contains the following components:
- An internal fuel filter
- A separate fuel pick-up, or inlet filter
- A fuel pressure regulator
- Fuel supply fitting (1)
- An electric fuel pump (2)
- A lock-ring to retain pump module to tank
- A soft gasket between tank flange and module
- A fuel gauge sending unit (fuel level sensor) (3)
- Auxiliary fuel pump module supply line connection (4)
If the electrical fuel pump, primary inlet fuel filter, internal fuel filter, or fuel pressure regulator require service, the fuel pump module must be replaced as an assembly.
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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.