HowToMechanic

Fuel Pump Replacement: 2004–2006 Nissan Altima, 2004–2008 Maxima & 2004–2009 Quest — 2.5L/3.5L, Two-Port Module

Fuel pump replacement can address confirmed fuel-delivery failure causing hard starting, stalling or loss of power on selected 2004–2006 Nissan Altima 2.5L/3.5L, 2004–2008 Maxima 3.5L and 2004–2009 Quest 3.5L models using the two-port module. An inaccurate gauge may accompany P0462 (fuel-level sensor circuit low input) or P0463 (high input), documented in the 2005 Altima service information. Those codes can also involve wiring or the combination meter; neither a code nor a symptom proves the pump assembly is defective. Verify the actual code definition and diagnose the fault before ordering.

The two fuel/vapor connections and the Altima’s emissions configuration are essential purchasing checks. This is not a replacement for the one-port module. Read the emissions label and production label on the car rather than deciding from the state where it is currently registered. Altima/Maxima interior access and Quest tank removal are different jobs and have different equipment needs.

Front three-quarter view of a 2005–2006 Nissan Altima sedan
2005–2006 Nissan Altima reference photograph; emissions equipment and installed pump configuration are not identified by this exterior view. Photo: IFCAR, public domain. Resized for display.
DIY skill level

Intermediate for documented sedan access; advanced for Quest tank work.

Estimated repair time

Sedan planning allowance: 2–4 hours after diagnosis. Quest tank work can require 4–7 hours or more.

Estimated parts budget

Module allowance $70–$180, plus $25–$90 for required seals, retainers and consumables; estimates.

Fuel-system safety

Gasoline and its vapors can ignite. Work outdoors or in a properly ventilated repair area, away from heaters, pilot lights, cigarettes, sparks and hot exhaust parts. Keep a suitable flammable-liquid fire extinguisher accessible. Wear splash eye protection and fuel-resistant gloves selected for gasoline exposure; change contaminated gloves immediately. Never use a household vacuum on spilled fuel or siphon by mouth. The fuel lines can remain pressurized with the engine off. Release pressure by the procedure for the exact vehicle before opening any connection, then isolate the battery as instructed. Catch residual fuel in a gasoline-compatible container and store recovered fuel only in an approved, labeled safety container. Stop for leaking or damaged connectors, a damaged tank flange, an uncontrollable spill, or an unfamiliar restraint-system connector. For a tank-removal job, use manufacturer-approved vehicle support points, appropriately rated stands and a stable, restrained tank support. Never work beneath a vehicle supported only by a hydraulic jack. A fuel tank can shift as its contents move; professional help is appropriate if suitable lifting and transfer equipment are unavailable.

Featured fuel pump module

A-Premium electric fuel pump module with sending unit, ASIN B075JHR6GP, Amazon part number FP0116C; one two-port module. The listing names a pump, sealing ring, sender and strainer. The related manufacturer FP0116 catalog lists a sealing ring and sender, no pressure sensor and no included float; check the exact delivered sender/float components before dismantling the vehicle. References include E8545M, FG0987, P76169M, SP4013M, 17040-9J300 and 17040-ZD80B. Do not confuse FP0116 with the unrelated APFP0116 catalog entry for Chrysler vans.

View the fuel pump module

Vehicle compatibility

Make and model Model years Engine Configuration and purchasing check
Nissan Altima sedan 2004–2006 2.5L L4 / 3.5L V6 gasoline Featured listing: built after 09/2003, Federal/non-California emissions, two ports. Confirm the September production boundary by VIN.
Nissan Maxima 2004–2008 3.5L V6 gasoline Two-port module; match the original flange, connections and VIN.
Nissan Quest 2004–2009 3.5L V6 gasoline Two-port module; confirm original module and tank. Repair access differs from the sedans.

Use the narrower restrictions of the exact Amazon listing even where a related catalog uses broader language. The manufacturer’s product page confirms the model-year families, but its simplified table is not a blanket approval for every emissions system. Transmission and production variations should be checked with the supplier. Do not cap off a port or modify hoses to adapt the wrong assembly.

Symptoms, fault codes and diagnostic checks

Start with what is actually failing. A fuel gauge problem, a cranking problem and low fuel pressure can require different repairs. Write down whether the symptom appears cold, hot, under load or after refueling. Record stored and pending codes, and preserve freeze-frame data before any battery disconnection or code clearing.

  • Gauge incorrect, engine otherwise normal: test the sender circuit and combination-meter inputs. The 2005 Altima factory diagnostic discussion identifies harness/connectors, the combination meter and the fuel-level sensor among possible causes of P0462/P0463.
  • Long crank or no start: establish that battery condition, engine cranking and ignition are normal, then test delivery with the correct adapter and service specification.
  • Intermittent stalling: inspect the module connector and power/ground path for heat damage or excessive resistance. A loose terminal can interrupt an otherwise healthy pump.
  • Weak delivery under load: compare pressure and electrical supply while the symptom occurs. An audible prime or a normal static voltage reading does not establish adequate performance.
  • Fuel odor after a prior repair: inspect the ring seal and quick connectors. Do not keep driving a vehicle with wet fuel around the tank or lines.

Delphi recommends checking loaded electrical supply and ground before replacing a pump that appears weak in pressure/flow tests. Use the vehicle circuit diagram and protected test connections. Do not infer a universal fuel-pressure target from the module’s advertising, and do not pierce an unknown wire or bypass the control system with an unfused jumper.

Tools, parts and supplies

The exact links below cover practical hand tools, diagnostic aids and fuel safety equipment. The Nissan quick connectors in the documented sedan procedures release by hand; a generic line-disconnect tool is not required for those connectors. Match each special tool and replacement service part to the vehicle before opening the fuel system.

Tool or Supply Exact Product Product Link Purpose and Selection Check
Sockets and hand drivers DEWALT DWMT73801, 108-piece SAE/metric mechanics set, 1/4- and 3/8-inch drives View sockets and hand drivers For matching access-cover, battery and ordinary fasteners. Confirm the head size and use hand tools around fuel. Not a fuel-ring wrench.
Wheel chocks Fasmov solid rubber wheel chocks, two-pack with carry handles View wheel chocks Secure the vehicle on hard, level ground with the parking brake applied. Chocks do not replace stands if lifting is required.
Chemical-splash goggles 3M 91252H1-DC-10 Chemical Splash Goggles View chemical-splash goggles Protect eyes during pressure release and fuel handling. Check fit and lens condition; eye protection does not replace ventilation.
Gasoline safety can Eagle UI50FS, red 5-gallon Type I steel safety can with F-15 funnel View gasoline safety can For recovered gasoline within its capacity, using the flame arrester and self-closing lid correctly. Not a complete bulk fuel-transfer system.
Fire extinguisher Amerex 322, 5 lb carbon-dioxide Class B:C extinguisher View fire extinguisher Keep serviced and accessible with an unobstructed exit. Follow its label; leave and call emergency services if a fire cannot be safely controlled.
Code reader — optional Autel AL319 OBD-II scanner View code reader — optional Read and record generic engine fault codes before clearing. Do not assume it supports manufacturer work-support or bidirectional pump commands.
Diagnostic meter — optional Innova 3320 auto-ranging digital multimeter View diagnostic meter — optional Use the exact wiring diagram, proper probes and the correct meter mode. Never place the current input across a battery or measure resistance on a powered circuit.
Small-fastener torque wrench EPAuto 1/4-inch-drive click torque wrench, 20–200 in-lb View small-fastener torque wrench Use only for verified fastener torques inside its range with a matching 1/4-inch socket. The tool range is not a fuel-ring torque specification.
Fuel-tank lock-ring wrench Nissan KV991J0090 / J-46214 for the documented Altima and Maxima procedures Match factory tool Use a documented equivalent with full engagement. Confirm drive requirements; do not assume a three-jaw or generic adjustable tool fits.
New seal, lock ring and connector retainer VIN-matched service parts; the 2005 Altima procedure calls for a new ring, ring seal and green connector retainer VIN-specific selection Do not assume these installation parts are all included with the module. Confirm the correct replacements before disassembly.
Gloves, absorbents and catch tray Gasoline-resistant protective gloves, fuel-compatible absorbents and catch equipment Select for gasoline exposure Choose gloves for the actual gasoline blend and contact time. A storage can alone does not catch every spill during module removal.
Quest lifting and tank-support equipment Vehicle-rated stands, approved lifting equipment, restrained tank support and gasoline transfer equipment Match the Quest procedure Required for the tank-removal approach, with capacity, clearance and support points matched to the van. This is not needed for a sedan’s normal access-cover procedure.

DIY versus professional cost

Estimates for planning: allow $70–$180 for the aftermarket module and $25–$90 for required installation parts and consumables. That gives approximately $95–$270 before tools for a straightforward job. Buying missing hand tools, the correct ring wrench, testing equipment and fuel-safety supplies can add $150–$450 or more. Tank lifting or fuel-transfer equipment can push a Quest project well beyond that allowance.

Using an illustrative $120–$180 hourly shop rate, 2–4 labor hours adds $240–$720 for sedan work, making an example total $335–$990 with the same parts allowance. For 4–7 hours of tank work, the corresponding arithmetic is roughly $575–$1,530. These are not factory labor times, live retail prices or local quotes. Diagnosis, towing, corrosion, fuel disposal, OEM parts and damaged line replacement are additional considerations. Compare a written shop estimate with the cost of buying equipment you will use only once.

Replacement overview

Choose the correct access path first. The following sedan overview is grounded in the 2005 Altima non-PZEV and 2006 Maxima factory fuel-system sections. The Quest service description calls for lowering the tank; do not assume that removing a rear seat will expose its module.

  1. Prepare and confirm the supplied parts. Match the two-port flange, electrical plug, indexing and sender arrangement. Have the new sealing and retaining parts ready. Park securely, remove ignition sources and protect the interior from residual gasoline. Resolve excess tank fuel by the approved transfer method before opening the module.
  2. Depressurize the delivery circuit. For the documented 2005 Altima VQ35DE method without CONSULT-II, remove the identified fuel-pump fuse from the IPDM E/R, run the engine until it stalls, crank another two or three times and switch ignition off. Restore the fuse only after servicing. Use the corresponding engine/year procedure for other configurations. An engine that cannot run needs the approved alternative pressure-release method; do not simply crack a pressurized hose.
  3. Isolate power and open the sedan service cover. The documented sedan procedures disconnect battery negative before line work. Remove the appropriate rear-seat bottom and expose the factory inspection cover. The 2005 Altima cover has four retainers that turn 90 degrees clockwise. Protect nearby wiring and do not create a new opening in the body.
  4. Clean and disconnect. Keep loose dirt outside the tank. Disconnect the electrical plug, EVAP connection and fuel feed according to the original routing. For the documented quick connectors, depress the release tabs fully and separate by hand; Nissan specifically prohibits tools on these connectors. Avoid bending resin tubing and cover open connections to keep out contamination.
  5. Remove the module and inspect. Use KV991J0090/J-46214 to release the ring in the documented sedan procedure. Carefully lift the module while keeping the float arm clear and controlling retained fuel. On the 2005 Altima, discard the lock ring and ring seal as instructed. Inspect the sealing land and retaining features; stop if they are damaged.
  6. Install with the correct orientation. Use the new seal. The documented sedan installation positions the fuel-feed connection toward the front of the vehicle. Seat the module without pinching the seal, then install the correct retaining hardware by the model’s procedure. Do not substitute a torque value from another Nissan generation.
  7. Secure the connectors and verify sealing. Install the required new coupling retainer where specified. Push connections straight together, confirm latch engagement visually and perform a gentle retention check. Restore the electrical connection, battery and fuse in the prescribed sequence. The documented sedan leak check first pressurizes the system with ignition on and engine stopped, then checks again at idle only after no leakage is found.
  8. Restore the cabin and check the result. Secure the access-cover seal and seat hardware. Verify the gauge reading and original complaint, and rescan for returning codes. Avoid road-testing with a loose seat, fuel smell, wet connections or incomplete module retention.

Quest tank-removal planning: arrange safe fuel recovery, vehicle support and a restrained tank support before disassembly. The 2005 Quest source describes parking-brake cable work and lowering the tank to reach the module top. Those extra operations need the Quest’s full removal, fastening and parking-brake restoration instructions. A sedan procedure and hand-tool kit alone are not sufficient for this route.

Common mistakes

  • Choosing the one-port version or adapting a mismatched module.
  • Deciding Federal versus California emissions from current registration alone.
  • Confusing the FP0116 Nissan catalog family with APFP0116 for a different vehicle.
  • Using pliers or a sleeve tool on a connector that Nissan says to release by hand.
  • Reusing a seal, ring or connector retainer that the specific manual requires replacing.
  • Assuming all three models have the same access route.
  • Replacing the module to fix a gauge code without testing the meter and wiring.

Frequently asked questions

How do I confirm the two-port version?

Compare the top flange of the original module with the exact listing. Match the connections and the VIN-based catalog result. Do not plug an extra port to make a different module fit.

Does “non-California emissions” mean the car cannot be located in California?

No. The restriction concerns installed emissions equipment and certification, not the vehicle’s current location. Check the underhood emissions label and VIN.

Can a new pump leave P0462 or P0463 unchanged?

Yes. The code can arise from a sender-circuit or combination-meter problem. Replacing the motor/module without diagnosis can leave the original fault in place.

Why budget for extra retainers if the product is an assembly?

The module’s contents do not necessarily include every installation part required by Nissan. The documented 2005 Altima procedure replaces its ring, seal and specified connector retainer.

Is the Quest job suitable for a first fuel-system repair?

Tank removal adds heavy, awkward handling and vehicle-support hazards. If you do not have suitable support and fuel-transfer equipment or the complete service procedure, use a qualified shop.

Sources and further reading