How to Replace the Fuel Pump on a 2001 Dodge Dakota Quad Cab — 3.9L V6, 4WD, 24-Gallon Tank

Fuel-pump replacement may address hard starting, stalling, hesitation or loss of power on a 2001 Dodge Dakota Quad Cab with the 3.9L V6 gasoline engine, 4WD and 24-gallon tank. An inaccurate fuel gauge can involve the module’s sender. A scan may show a general misfire code such as P0300, meaning random/multiple-cylinder misfire. Fuel delivery, ignition and other engine faults can produce similar symptoms; symptoms or codes alone do not prove that the pump module has failed.

Application and repair overview

These tank-removal steps cover the 2001 Dakota Quad Cab, 3.9L V6, VIN engine X, 4WD, factory 24-U.S.-gallon tank. Confirm the VIN, cab, tank capacity, original module and connector before ordering. Other listed years/engines have their own procedures; smaller-tank regular and Club Cabs need a different module.

DIY skill
Advanced
Pressurized fuel diagnosis, controlled tank handling and gasoline recovery.
Estimated time
4–7+ hours
Planning estimate; corrosion, fuel quantity and crossmember/driveshaft configuration affect the job.
Estimated parts budget
$90–$210
Module and routine materials; damaged hardware, lines and equipment cost extra.

Gasoline, pressure and support safety

Work cool and ventilated, away from flames, smoking, heaters and sparks. Wear splash goggles and fuel-resistant gloves; contain spills and keep a Class B extinguisher accessible. Opening the filler cap does not release rail pressure.

Use rated vehicle support at factory points and separate restrained tank support. Never work beneath a vehicle supported only by a hydraulic jack. Establish complete testing and recovery connections before opening the system. Stop for equipped service if pressure release, draining, secure support or sound connections cannot be assured.

Featured replacement: A-Premium APFP0087MF

ASIN: B07FC15XGG. Part number: APFP0087MF. Quantity: one electric fuel-pump module for the listed gasoline Quad Cab / 24-gallon applications. The selected package includes the pump, regulator, sender, float and arm, strainer and tank sealing ring. A pressure sensor is not included.

View A-Premium 24-gallon Quad Cab fuel-pump module

Compare the connector, outlet, flange and float travel with the original. References include 5014884AD/AF; the 2001 OE module is 5014884AD, superseded by 5014884AG. The selected listing’s photograph shows the float arm attached. A new threaded retaining nut, straps, hoses and separate wiring-conversion kit are not promised. Do not splice wiring to accommodate a mismatched connector.

Vehicle compatibility

Vehicle Catalog years Engine and fuel Application restriction
Dodge Dakota Quad Cab 2000–2003 3.9L V6 gasoline Four-door crew cab; 24-U.S.-gallon tank. Detailed steps: 2001, 4WD, VIN engine X.
Dodge Dakota Quad Cab 2000–2002 4.7L V8 gasoline Four-door crew cab; 24-U.S.-gallon tank. Engine-specific procedure required.
Dodge Dakota Quad Cab 2000–2003 5.9L V8 gasoline Four-door crew cab; 24-U.S.-gallon tank. Engine-specific procedure required.

Coverage here excludes 2.5L vehicles, regular/Club/extended cabs, other tank capacities and 2003 4.7L applications. Compare the related APFP0087-family catalog and 2001 Quad Cab OE catalog with your configuration. The broader part coverage does not extend these 2001 3.9L 4WD repair steps.

Symptoms and diagnostic checks

Record codes and freeze-frame data first. Check actual fuel quantity, battery, pump fuse/relay and loaded power/ground; inspect damaged or corroded connectors. Pump noise does not establish pressure, and silence can reflect an electrical fault. Diagnose erratic level readings as a sender/circuit problem separately.

A general P0300 misfire code also calls for ignition, air-leak and engine-condition checks. Separate pressure, delivery-volume and leak-down faults before condemning the module.

Check pressure under the specified conditions

The 2001 3.9L factory test uses the capped rail port: 339 ± 34 kPa (49.2 ± 5 psi), engine warm and idling. Follow the safe hookup/bleed sequence below, check for leaks and keep hoses clear of heat and moving parts.

Below 44.2 psi, check supply-line restriction and capacity, amperage and leak-down results. Above 54.2 psi, investigate the regulator rather than automatically condemning the motor. Zero pressure on a fully cooled, engine-off vehicle can be normal; it is not the warm-idle test.

Tools, parts and supplies

Match the actual fasteners, drive sizes, load and fuel quantity. A tool’s rating is not a vehicle lift-point specification. Required specialist equipment must form a complete compatible setup; include its adapters, restraints, hoses and instructions.

Tool or Supply Exact Product Product Link Purpose and Selection Check
Sockets, ratchets and extensions DEWALT DWMT75049 192-Piece SAE and Metric Mechanics Tool Set View 192-piece socket set Includes 1/4-, 3/8- and 1/2-inch drives and extensions. Match the actual battery, strap, clamp, shield and crossmember fastener heads; no universal socket size is implied.
Fastener and retaining-nut torque wrench EPAuto ST-012-1 3/8-Inch Drive Click Torque Wrench, 10–80 ft-lb View 3/8-inch torque wrench Covers the specified strap, retaining-nut, skid and crossmember torques. Its 3/8-inch drive matches the selected module spanner. Use the separate low-range tool for hose clamps.
Low-range fuel-hose clamp torque wrench TEKTON TRQ50402 1/4-Inch Drive Dual-Direction Micrometer Torque Wrench, 20–200 in-lb View inch-pound torque wrench Use this 1/4-inch drive wrench for original fuel-hose screw clamps specified at 25 in-lb (3 N·m). Its calibrated 20–200 in-lb range and 1 in-lb increments cover that setting. Select the socket that fits the actual clamp head from the 1/4-inch socket set. For a replaced clamp design, follow the correct clamp manufacturer’s specification.
Threaded module retaining-nut spanner PMD Products 25159 Adjustable Fuel-Tank Lid Tool, Miller 6856 /OTC 7998 Equivalent Source by specification Manufacturer identifies a Miller 6856 equivalent with 3/8- and 1/2-inch drive capability and adapter. Engage the threaded nut fully; use the 3/8-inch wrench for 54 N·m (40 ft-lb).
Required vehicle lifting equipment Installed Automotive Hoist Rated and Configured for This Dakota and Its Factory Contact Points Source by specification Use factory contact points, suitable adapters, restraints and mechanical locks. Allow for changing vehicle balance and clearance for the 35-inch-minimum tank jack plus handler. The tank jack cannot lift the vehicle.
High-lift tank-support jack OTC TJH10 1,000-lb High-Lift Transmission Jack View OTC high-lift jack Pair with the separate OTC 1758 handler. Its 35-inch minimum height requires hoist clearance. Center the drained tank on a hard, level surface; lower the load before moving.
Matching tank cradle and restraint OTC 1758 Fuel Tank Handler with Pads, Nylon Strap and Mounting Hardware View OTC fuel-tank handler Confirm the 24–38-inch horizontal and 7–11-inch vertical adjustment fits the drained tank before lifting. Attach with supplied hardware and pinned risers. Keep pads clear of hoses/fittings, center the load and secure the nylon restraint as the tank comes free.
Wheel chocks for parked setup MaxxHaul 70472 Solid Rubber Wheel Chocks, 2-Pack View rubber wheel chocks The 8 × 4 × 6-inch chocks must suit the tires. Chock grounded wheels during level-ground setup; follow the hoist’s controlled transition to elevated work.
Rail pressure tester with controlled bleed Actron CP7818 Fuel Pressure Tester Kit View fuel-pressure tester kit Use its GM/Chrysler fitting on the matching rail Schrader port, ignition OFF for attachment. Keep the full six-foot bleed hose in an approved gasoline receiver. Follow the test/bleed/removal sequence; this is not a tank-draining pump.
Tester O-ring lubricant 3-IN-ONE 100703 Multi-Purpose Drip Oil, 3 fl oz View tester O-ring oil Apply only the small amount of lightweight household oil specified for the tester O-ring. The vehicle’s fuel-line couplings separately require clean engine oil.
Fuel-rail quick-connect release tool Lisle 34750 Low Profile Fuel Line Disconnect Set View 5/16-inch release-tool set Use the 5/16-inch collar and handle on the matching rail supply coupling after pressure release and latch removal. Tank-top finger-release tabs use their own method.
Conditional latch and single-tab screwdrivers CRAFTSMAN CMHT65044 12-Piece Assorted Screwdriver Set View assorted screwdriver set Use a correctly fitting flat blade when the installed safety latch or single-tab connector calls for it. On a single-tab fitting, press its side release before lifting the pull tab, and install a new tab during reassembly. Work only on the specified release feature; do not pry against the fuel nipple or use a screwdriver on the threaded module nut.
Conditional full-round retainer pressing aid Crescent CCWS2-05 10-Piece SAE Combination Wrench Set View SAE open-end wrench set Conditional—confirm size first. On a fitted full-round retainer, choose an open end that clears the tube and bears evenly on the release collar. Press the collar squarely into the connector as the factory procedure describes. Do not twist or pry the fuel line; this pressing aid does not replace the rail’s internal-finger release collar.
Bulk gasoline recovery and storage JohnDow FC-P30-UL Red 30-Gallon Gasoline Caddy with Manual Two-Way Pump Source by specification Gasoline-rated receiver, manual suction pump and bonding equipment. Allow enough empty permitted capacity for the actual tank fuel. Obtain the complete matched hose/5/16-inch rail-supply connection before starting; the caddy alone is incomplete.
Required rail-supply recovery attachment Snap-On FIDA44 5/16-Inch Test Fitting or Confirmed Equivalent, with Station-Approved Hose Coupling Source by specification Match both the vehicle’s 5/16-inch supply socket and the station-approved gasoline suction hose. Confirm all fittings, sealing, retention and bonding requirements before opening the line; never force an unmatched hose onto a fitting.
Approved container for small fuel quantities Eagle UI50FS 5-Gallon Type I Red Gasoline Safety Can with Funnel View 5-gallon safety can For small controlled quantities within its fill limit, not a full 24-gallon tank. Retain the flame arrester and self-closing lid; never force a tester hose through safety hardware.
Optional basic diagnostic code reader Autel AutoLink AL319 OBD-II Code Reader View basic OBD-II reader Optional: record codes, freeze-frame and readiness, then check recurring faults. This basic reader cannot command the pump or measure fuel pressure.
Optional electrical diagnostic meter INNOVA 3320 Auto-Ranging Digital Multimeter View automotive multimeter Optional: use with the exact wiring diagram and terminal-safe connections for supply/ground diagnosis, away from open fuel. The meter does not establish connector pinout or fuel pressure.
Required new tank seal New Tank Sealing Ring Supplied with APFP0087MF; OE 52018808 Is a VIN-Matched Fallback Reference Source by specification Install a new seal every module service. Inspect the supplied ring’s shape and seating; if missing, damaged or incorrect, obtain the exact tank/VIN-matched replacement before assembly.
Conditional replacement retaining nut OE 52005389 Threaded Plastic Retaining Nut, Confirmed Against the Fitted Tank and VIN Source by specification Conditional: replace a cracked, distorted or thread-damaged nut with the correct tank-matched part. Start squarely by hand and use the specified spanner/torque; a metal locking ring is different.
Conditional connector service parts Correct New Locking Tab, Retainer or Complete Line Assembly for Each Fitted Connector Source by specification Conditional: identify the actual connector and obtain required new tabs or damaged-line replacements before disconnection. Complete the specified locking and pull checks; do not substitute a universal clip kit.
Clean engine oil for specified fuel couplings Pennzoil 550035091 5W-30 Motor Oil, 1 Quart View clean engine-oil supply Use a small uncontaminated amount on connections where the factory specifies engine oil. The bottle’s grade is not an engine-oil-change recommendation or permission to oil the tank seal.
Exterior dirt-removal brush Lisle 14000 Parts Cleaning Brush View parts-cleaning brush Remove external dirt before opening the system. Keep bristles outside fuel passages, collect loosened dirt and avoid scraping sealing surfaces.
Clean disposable wiping cloths WypAll GeneralClean X60 54015 White Multi-Task Cloths, One 236-Sheet Box View single-box cleaning cloths Use fresh cloths around connections; keep fibers outside ports and segregate contaminated wipes. These are not spill absorbent or a gasoline receiver.
Clean protection for open fuel ports Clean Fuel-Compatible Caps Matched to Each Open Line and Module Port Source by specification Match clean fuel-compatible caps to actual openings without damaging sealing surfaces. Track and remove every cap before reconnection; do not stuff cloths into lines.
Gasoline-compatible spill absorbent New Pig MAT214 Stat-Mat Oil-Only Absorbent Pads Source by specification Keep gasoline-compatible, static-dissipative pads ready for small spills. Stop and clean spills promptly; pads do not replace a closed recovery system.
Temporary container for contaminated wipes Justrite 09200 Red 2-Gallon Countertop Oily Waste Can View self-closing waste can Temporary storage for contaminated wipes with the self-closing lid working; arrange proper disposal. This is not a container for free liquid gasoline.
Splash and impact eye protection 3M 91252H1-DC-10 Chemical Splash and Impact Goggles, One Pair View chemical-splash goggles Wear properly fitting splash/impact protection for fuel work, cleaning and conditional rivet work. Replace damaged lenses or frames.
Chemical-barrier gloves North by Honeywell Silver Shield SSG/7 Chemical-Barrier Gloves, Size 7, 10 Count View chemical-barrier gloves This selection is size 7. Match fit and chemical exposure limits; inspect the thin barrier, add compatible mechanical protection where needed and replace damaged or contaminated gloves.
Accessible Class B fire protection First Alert HOME1 /FE1A10GR Rechargeable Fire Extinguisher, 1-A:10-B:C View Class B-rated extinguisher Keep serviceable flammable-liquid fire protection accessible along the exit route. Do not continue work after a fire or substantial fuel spill.
Conditional crossmember rivet drill DEWALT DCD771C2 20V MAX 1/2-Inch Drill/Driver Kit View drill kit with batteries Needed only when the factory procedure requires removal of a riveted lower crossmember for a two-piece driveshaft. Use the included battery-powered drill with the specified 3/8-inch bit only after fuel is contained and the work area is free of flammable vapors. Keep the bit clear of hidden lines and the tank.
Conditional 3/8-inch rivet drill bit DEWALT DW1361 21-Piece Titanium-Nitride Pilot-Point Drill Bit Set View bit set with 3/8-inch bit Use the set’s exact 3/8-inch metal-drilling bit for the rivets when this crossmember branch applies. It fits the selected drill’s 1/2-inch chuck. Do not use a larger bit or enlarge the frame or crossmember holes.
Conditional rivet center punch and pin punches STANLEY 16-299 Punch and Cold Chisel Set View center-punch and pin-punch set Use the center punch to mark rivets accurately before drilling, and a correctly fitting pin punch for loosened rivet remnants. This is only for the conditional crossmember operation after fuel hazards are controlled. Do not strike the plastic fuel-module nut or tank.
Conditional punch-driving hammer TEKTON 30402 12-oz Ball-Peen Hammer View 12-oz ball-peen hammer Use controlled strikes on the rivet center punch or suitable pin punch only for the conditional crossmember work. Establish a fuel- and vapor-safe work area first. This steel hammer is never a fuel-module retaining-nut removal tool.
Conditional driveshaft and carrier support Load-Rated Rope and Secure Attachment Arrangement for the Two-Piece Driveshaft and Carrier Source by specification Before removing the carrier support, arrange the factory-prescribed rope support so the driveshaft and carrier stay raised and cannot drop or load adjacent lines. Match the rope, knots or terminations and anchor to the actual supported load. Do not detach the carrier until this support is secure.
Conditional replacement crossmember hardware Correct OEM Crossmember Bolts and Nuts Matched to the Factory Upper Crossmember Hardware Source by specification If the lower crossmember’s rivets must be removed, obtain the specified replacement bolts and nuts before drilling. Match the factory hardware’s dimensions, grade and locking design. Do not reuse drilled rivets or substitute unidentified hardware-store bolts.

DIY versus professional cost

Allow approximately $70–$160 for an aftermarket module and $20–$50 for routine materials: roughly $90–$210 before tools. This planning estimate assumes a correct supplied seal and serviceable tank, lines and hardware. Corrosion, contamination and damaged couplings increase cost. Budgeting $150–$350 to fill gaps in an existing hand-tool and PPE kit does not buy the entire table. Conditional drill/hardware purchases, vehicle lifting, tank support, approved gasoline recovery and specialist testing equipment cost extra. Compare a complete equipment budget with a shop quote before committing.

For comparison, RepairPal’s 2001 Dodge Dakota estimate lists $629–$731 total, with $220–$322 labor and parts around $409, updated January 28, 2026. These are published rounded estimates, excluding taxes, fees, location differences and related repairs. They are not current Amazon prices or a quote to install the featured customer-supplied module. Ask for an itemized local diagnosis and repair quote.

Step-by-step replacement overview

These steps apply to the stated 2001 Quad Cab 4WD 3.9L / 24-gallon configuration. Complete the diagnostic work first and have the full fuel-recovery, lifting and conditional crossmember equipment ready before opening the system.

1. Prepare the vehicle, parts and equipment

Record diagnosis and compare the module first. On firm level ground, select Park (automatic) or Neutral (manual), set the parking brake and chock wheels for testing. Identify the tank/driveshaft/skid arrangement, stage service parts and let hot engine/exhaust parts cool before opening connections.

2. Release pressure through the matched rail tester

Inspect the CP7818 hoses and seal. With ignition OFF, remove the actual rail-port cap and lightly oil the tester O-ring with specified household oil. Wrap a clean cloth around the port while attaching the GM/Chrysler fitting finger-tight. Use neither the Ford adapter nor an air-conditioning port.

Keep the full six-foot bleed hose ending in an approved gasoline receiver throughout testing/bleeding. Switch accessories off, turn ignition on without starting and inspect for leaks; switch off and contain any leak immediately. A failed pump can leave residual pressure.

Turn ignition OFF. With the bleed hose still contained, hold the relief button until the pointer rests on its stop. Drain remaining hose fuel into the receiver. Wrap the rail connection with a cloth, carefully unscrew the fitting, contain remaining tester fuel and restore the port cap. Never loosen a supply connection to vent pressure. If this complete bleed arrangement is unavailable, obtain equipped service.

Use the connector’s own release and locking method

After pressure release and battery disconnection, clean each fitting. At the rail, open the fitted safety latch: lift a tethered clip, or unlatch the separate clip’s two arms and swing it away. Insert the matching 5/16-inch release collar and pull the line free with it engaged. Elsewhere, press the release before lifting a single pull-tab, or squeeze two opposed tabs by hand. For a full-round ring, push the fitting toward its component, press the ring squarely inward, then withdraw the fitting; use a correctly fitting open-end wrench if needed.

For reconnection, inspect and clean the mating parts, lubricate as specified with clean engine oil, seat fully until the click is felt, and install a new single tab where that design requires it. Confirm locking with the factory 15–30 lb pull check, then reinstall the safety latch. A latch that will not fit indicates incomplete seating. Replace damaged nonserviceable lines or fittings; do not improvise internal seals or retainers.

3. Drain the tank through the rail supply line

Have the complete recovery connection ready first. After pressure release, keep ignition off, remove the filler cap and disconnect/isolate battery negative. Clean and release the rail supply connector, catching residual fuel. Connect its 5/16-inch socket to the matching test fitting, such as Snap-On FIDA44, and the station-approved hose/couplings.

Bond and operate the station according to its instructions, with enough available receiver capacity. Drain until empty, then safely disconnect and contain the recovery equipment and cap the open lines. This factory method uses the disconnected supply line; the tank cannot drain through its filler or vent fittings. An inoperative pump requires the external station. Stop before opening the line if the complete station-to-line connection is unavailable.

4. Raise the vehicle and disconnect the filler tubes

Use factory hoist points, suitable adapters, locks and restraints; allow for changing vehicle balance and tank-jack clearance. Do not leave the rear axle hanging unsupported with the parking brake applied. The tank jack cannot lift the vehicle.

Remove the splash shield ahead of the left rear wheelhouse. Release clamps and disconnect filler/vent hoses at their tubes, leaving tank ends attached. Record hose positions and protect openings.

5. Address the fitted crossmember and shield arrangement

For a two-piece driveshaft, remove the obstructing crossmember. Arrange rope support, remove the center-bearing carrier’s bolts/nuts, then raise and support the shaft/carrier. Center-punch the rivets and drill with a 3/8-inch bit only; do not enlarge the holes. Remove the crossmember and remaining rivets. Have replacement hardware ready and keep fuel, vapors and open lines clear of drilling/impact work.

Keep the shaft supported until carrier reinstallation. If a tank skid plate is fitted, support it; remove nuts at the tank/frame crossmembers and screws at the support bracket/frame side rail. Lower it under control.

6. Support and lower the tank in stages

Mount the handler on its compatible jack, center the padded cradle beneath the drained tank, arrange its restraint and apply slight support. Remove both strap nuts, move the straps aside and lower just enough for top access.

Clean and disconnect the filter/regulator supply line, rollover-valve vapor lines and pump connector using their proper retainers; cap openings. Once everything is free, lower without stretching hoses/wiring, moving rearward first if clearance requires. Transfer the tank to a clean stable surface. The module reservoir can retain gasoline after draining.

7. Replace the module and its seal

Clean around the flange. Unscrew the retaining nut with Miller 6856 or the matched equivalent. Lift the module carefully, containing fuel and protecting the float. Inspect the tank, sealing seat and nut threads; compare replacement geometry and float clearance.

Install a new seal and insert the module without displacing it. Align its arrow to the molded tank marks: the four-door factory figure shows 4 o’clock, with tank front to the figure’s right. This index prevents float-rod contact; do not assume a clock position from another viewing angle.

Start the nut by hand. Carefully orient the filter/regulator outlet toward the driver’s side without stressing its connection. Use the spanner to tighten to 54 N·m (40 ft-lb), preventing module rotation. Do not hammer, cross-thread or overtighten the nut.

8. Refit the tank, shield and any removed crossmember

Restore any filler/vent hose tank ends removed for separate service to their recorded positions. Secure the tank on the handler, raise it partway and reconnect the top supply line, electrical connector and vapor hoses. Complete the quick-connect locking checks, route everything without pinching and continue raising the tank into position.

Install both mounting straps and nuts. Tighten the strap nuts to the factory range of 27–54 N·m (20–40 ft-lb); do not overtighten them. Remove the tank jack only after the straps securely support the tank. Reinstall any supported tank skid plate: tighten its crossmember nuts to 41 N·m (30 ft-lb) and its frame-rail/support-bracket screws to 23 N·m (17 ft-lb). These are fuel-tank skid-plate values.

For the two-piece driveshaft branch, refit the drilled crossmember using new OEM bolts/nuts of the same type used on the upper fuel-tank crossmember. Tighten them to 54 N·m (40 ft-lb). Reposition the driveshaft/carrier assembly and tighten its carrier-bracket bolts to 54 N·m (40 ft-lb), then remove the temporary rope support.

9. Restore the hoses and check the completed repair

Reconnect the filler and vent hoses to their tubes and tighten the factory fuel-hose clamps to 3 N·m (25 in-lb) with the low-range torque tool. Restore the splash shield and rail supply connection with its locking/latch checks. Confirm ports, caps, wiring, fasteners and hoses are restored, clear spills and lower the vehicle. Reconnect the battery negative cable, refill with suitable clean gasoline and install the filler cap.

For the final pressure test, attach the tester with ignition OFF as above. With everyone clear, turn ignition on and inspect connections and the tank area for leaks. If dry, start and warm the engine, verify the warm-idle pressure and stable operation, then switch off, bleed/remove the tester safely and restore its port cap. Check the fuel gauge against the known quantity. Stop for liquid fuel, strong odor or damaged connections. Only after these checks, road-test briefly and recheck leaks, symptoms and codes; never drive with a fuel leak.

Pump and sender illustration

Generic electric fuel-pump assembly showing a strainer and fuel-level sender float
Educational pump and sender example from a different vehicle. This is not the featured APFP0087MF or a guide to Dakota installation geometry. Photo: Austin Davis, Wikimedia Commons; reuse permitted.

Common mistakes

  • Ignoring cab, tank, connector or driveshaft differences.
  • Replacing the pump solely for P0300, noise or a gauge complaint.
  • Opening pressurized lines, improvising recovery fittings or overfilling receivers.
  • Loading hoses/wiring with the tank or using its jack to lift the vehicle.
  • Reusing the seal, damaging threads or float alignment, or incompletely locking connectors.
  • Skipping recorded diagnosis, correct torque or final leak checks.

Frequently asked questions

Does P0300 mean the fuel pump is bad?

No. It means random/multiple-cylinder misfire. Check ignition and other engine causes alongside fuel pressure and delivery before buying a module.

Will this fit my 22-gallon Dakota?

The featured selection is for the listed four-door Quad Cab with a 24-U.S.-gallon tank. Use the correct module for the actual tank and cab; a matching engine alone is insufficient.

Will the pump fix an inaccurate fuel gauge?

It includes a sender, but wiring, terminals and gauge circuitry can cause similar symptoms. Diagnose the level circuit and confirm free float travel.

Can I remove the pickup bed instead?

This procedure uses tank removal. It does not cover bed removal or cutting an access hole.

Is this practical with only a floor jack?

No. It requires secure vehicle support, restrained tank support and complete testing/recovery equipment. Use an equipped shop when that arrangement is unavailable.

Sources and further reading