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.
2005 Lincoln Navigator RWDFACTORY OEM SERVICE PROCEDURE
Pump Assembly: Disassembly
- Remove the front pump washer.
- Remove and discard the front pump O-ring seal.
- Remove and discard the front pump seals.
- Remove the 11 bolts and separate the pump control body from the pump body.
- Inspect the pump body outer seal for damage. If damage is indicated a new pump assembly will be required.
- Remove and inspect the inner and the outer pump gears.
- Clean all pump parts in solvent.
- Dry the parts with compressed air.
- Inspect the pump gears, faces, gear teeth, pump housing and mating surfaces for damage or scoring.
- Install a new pump if any of the parts are damaged or worn.
Factory Service Tools
Use the Manual With the Right Hardware
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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.