This procedure covers the removal and replacement of the power steering pump on a 2021-2024 Ford F-150 with the 3.5L V6 EcoBoost engine. Note: Most 2021+ F-150 models use Electric Power Assisted Steering (EPAS) and do not have a hydraulic power steering pump.

Warnings

Tools required

Parts

• Power steering pump assembly × 1 — Use OEM specification
• Power steering pressure line O-ring × 1 — Use OEM specification
• Power steering return line O-rings × 2 — Use OEM specification
• Serpentine belt (if damaged or worn) × 1 — Use OEM specification
• Power steering fluid (Mercon V compatible) × 2 — Use OEM specification

Fluids

• Power steering fluid (Mercon V compatible) — 1.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Allow engine to cool completely for at least 2 hours
3. Disconnect negative battery terminal to prevent accidental starter engagement
4. Remove engine cover by pulling upward on the retaining clips
5. Raise front of vehicle and support securely on jack stands
6. Remove driver side front wheel for improved access to pump area
7. Place drain pan beneath power steering pump area
8. Use turkey baster or fluid pump to remove as much fluid as possible from power steering reservoir

Procedure

1. 1

   Remove serpentine belt
   Locate the serpentine belt tensioner on the front of the engine. Using the appropriate tensioner tool, rotate the tensioner clockwise to relieve belt tension. Slide the belt off the power steering pump pulley first, then carefully release tensioner. Remove belt completely from engine compartment and inspect for wear, cracks, or glazing. Replace if necessary.
2. 2

   Disconnect power steering reservoir hose
   Locate the power steering fluid reservoir mounted to the passenger side of the engine bay. Trace the supply hose from the reservoir to the pump. Using pliers, compress and slide the hose clamp away from the pump connection point. Gently twist and pull the hose off the pump inlet fitting. Be prepared for fluid spillage. Cap or plug the hose immediately to prevent fluid loss.
3. 3

   Disconnect high-pressure line
   Locate the high-pressure line connection on the rear of the pump body. Using a line flare nut wrench to prevent rounding, carefully loosen the pressure line fitting. Once loose, unthread by hand and carefully separate the line from the pump. Be prepared for residual fluid to drain. Cap both the line and pump port immediately. Note the condition of the O-ring seal for replacement.
   ⚠Use only a flare nut wrench on pressure line fittings. Standard wrenches will round the soft brass fittings.
   Torque spec

   Pressure Line Fitting30 Nm (22 lb-ft)
4. 4

   Remove pump mounting bolts
   Locate the pump mounting bolts securing the pump to the engine block bracket. There are typically two or three bolts depending on pump configuration. Access may be limited; use appropriate extensions and universal joints as needed. Remove all mounting bolts completely and retain hardware. Note the location and length of each bolt for proper reassembly.
   ℹ️Mounting bolt locations may vary. Ensure all bolts are removed before attempting to remove pump assembly.
   Torque spec

   Pump Mounting Bolts25 Nm (18 lb-ft)
5. 5

   Remove power steering pump
   With all connections and mounting bolts removed, carefully maneuver the pump assembly away from the engine block. You may need to tilt and rotate the pump to clear surrounding components. Remove the pump through the wheel well opening for easiest access. Once removed, drain any remaining fluid into drain pan. Inspect the pump pulley for wear or damage.
6. 6

   Prepare new pump for installation
   If the new pump does not come with a pulley installed, transfer the pulley from the old pump using a pulley puller and installer tool set. Ensure the pulley is pressed on completely and aligned properly. Install new O-rings on all fluid connections, lubricating lightly with clean power steering fluid. Verify all ports are clean and free of debris.
   ⚠Never hammer a pulley onto the pump shaft. Use proper pulley installation tool to prevent internal pump damage.
7. 7

   Install new power steering pump
   Maneuver the new pump assembly into position through the wheel well opening. Align the pump with the mounting bracket on the engine block. Thread all mounting bolts by hand first to ensure proper alignment before tightening any bolts. Once all bolts are started, tighten them in a cross-pattern to the specified torque.
   Torque spec

   Pump Mounting Bolts25 Nm (18 lb-ft)
8. 8

   Reconnect high-pressure line
   Install the new O-ring onto the pressure line fitting, lubricating with clean power steering fluid. Carefully thread the pressure line fitting into the pump port by hand to avoid cross-threading. Once hand-tight, use the flare nut wrench to tighten to the specified torque. Do not overtighten as this can damage the fitting or O-ring seal.
   Torque spec

   Pressure Line Fitting30 Nm (22 lb-ft)
9. 9

   Reconnect reservoir supply hose
   Push the supply hose firmly onto the pump inlet fitting until it seats completely. Slide the hose clamp back into position over the connection point and ensure it is properly secured. Verify the hose is routed correctly and does not contact any sharp edges or hot components.
10. 10

    Reinstall serpentine belt
    Route the serpentine belt around all pulleys according to the belt routing diagram on the radiator support or underside of the hood. Using the tensioner tool, rotate the tensioner clockwise and slide the belt onto the power steering pump pulley last. Carefully release the tensioner and verify the belt is properly seated in all pulley grooves.
11. 11

    Refill and bleed power steering system
    Fill the power steering reservoir to the COLD MAX line with the appropriate power steering fluid. With the engine off, turn the steering wheel lock-to-lock 10-15 times slowly to purge air from the system. Check fluid level and add as necessary. Start the engine and allow to idle. Turn the steering wheel slowly lock-to-lock 5-10 times while checking for leaks and monitoring fluid level. Top off fluid to the appropriate level and verify smooth operation with no noise.
    ⚠Do not hold steering wheel at full lock for more than 5 seconds during bleeding procedure to prevent pump damage.

Reassembly

1. Reinstall driver side front wheel and torque lug nuts to specification in a star pattern
2. Lower vehicle from jack stands
3. Reinstall engine cover by pressing firmly on retaining clips until seated
4. Reconnect negative battery terminal
5. Clean any spilled power steering fluid from engine bay and undercarriage components

Verification

• Start engine and verify no unusual noises from power steering pump area
• Turn steering wheel slowly lock-to-lock while monitoring for leaks at all connection points
• Verify power steering fluid level is at appropriate mark on reservoir with engine at operating temperature
• Test drive vehicle at low speed and verify smooth power steering operation with no whining, groaning, or binding
• Recheck all connection points for leaks after test drive
• Verify serpentine belt is properly seated and tensioned with no unusual squealing

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