🔧 Explorer - Power Steering Pump Replacement

The power steering pump creates hydraulic pressure so you can turn the wheel easily. Replacing it involves removing the belt, transferring the pulley to the new pump, reconnecting the hoses, then bleeding air out of the system to prevent whining and foamy fluid.

Difficulty Level: Intermediate | Estimated Time: 2.5–4.0 hours

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⚠️ Safety & Precautions

• 🛑 Support the SUV with jack stands before working underneath.
• 🛑 Keep hands clear of the belt drive; never work near a running belt.
• 🛑 Power steering fluid can damage rubber and paint; wipe spills immediately.
• 🛑 Let the engine cool before starting; the front engine area gets very hot.
• 🛑 Do not hold the steering at full lock for more than 5 seconds.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Drain pan (at least 2-gallon)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Serpentine belt tool
• 3/8" drive ratchet
• 3/8" drive torque wrench (10–80 ft-lbs)
• Socket set (8mm–15mm)
• Wrench set (8mm–19mm)
• Flare-nut wrench set (14mm–19mm)
• Power steering pulley puller/installer set (specialty)
• Line caps/plugs set
• Hose clamp pliers
• Trim clip tool
• Shop rags
• Funnel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Power steering pump - Qty: 1
• Power steering fluid (MERCON V ATF) - Qty: 2 quarts
• Power steering pressure line O-ring/seal kit - Qty: 1
• Power steering return hose clamp - Qty: 1
• Serpentine belt - Qty: 1 (optional if belt is cracked)

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Pop the hood and locate the power steering reservoir.
• Use a turkey baster-style suction tool (or siphon pump) to remove as much old fluid from the reservoir as possible into a drain pan.
• Flare-nut wrench tip: It grips more sides of the fitting to prevent rounding.
• Pulley puller/installer tip: This tool safely removes/presses the pulley without damage.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and secure the front

• Use a floor jack (rated 3-ton minimum) to lift the front at the proper jacking point.
• Set the vehicle onto jack stands (rated 3-ton minimum) and keep wheel chocks on the rear tires.

Step 2: Remove any covers/splash shields (if equipped)

• Use a trim clip tool to remove plastic push-pins.
• Use a socket set (8mm–15mm) with a 3/8" drive ratchet to remove shield bolts.

Step 3: Relieve serpentine belt tension

• Place a serpentine belt tool on the belt tensioner and rotate to relieve tension.
• Slip the belt off the power steering pump pulley and slowly release the tensioner.
• Tip: Take a quick belt routing photo first.

Step 4: Disconnect the return hose at the reservoir

• Position a drain pan (at least 2-gallon) under the hose connection.
• Use hose clamp pliers to slide the clamp back.
• Twist and pull the return hose off; plug the hose/reservoir using a line caps/plugs set to reduce mess.

Step 5: Disconnect the pressure line from the pump

• Place shop rags under the fitting.
• Use a flare-nut wrench set (14mm–19mm) on the pressure fitting and loosen it carefully.
• Once free, cap the line using a line caps/plugs set.
• Remove and discard the old seal/O-ring at the pump connection, then set the new seal aside for installation.

Step 6: Remove the pump pulley

• Use a power steering pulley puller/installer set (specialty) to pull the pulley off the pump shaft.
• Do not pry on the pulley; it can bend and cause belt squeal.

Step 7: Unbolt and remove the power steering pump

• Use a socket set (8mm–15mm) with a 3/8" drive ratchet to remove the pump mounting bolts.
• Lift the pump out of the bracket and remove it from the engine bay.

Step 8: Install the new pump into the bracket

• Position the new pump and start bolts by hand to avoid cross-threading.
• Tighten mounting bolts using a 3/8" drive torque wrench (10–80 ft-lbs): Torque to 25 Nm (18 ft-lbs).

Step 9: Press the pulley onto the new pump

• Use the power steering pulley puller/installer set (specialty) in “install” mode to press the pulley on.
• Press until the pulley alignment matches the other belt pulleys (same plane). Tip: Go slowly and check often.

Step 10: Reconnect the pressure and return lines

• Install the new seal/O-ring on the pressure fitting as provided in the power steering pressure line O-ring/seal kit.
• Thread the pressure fitting in by hand first, then tighten with a flare-nut wrench set (14mm–19mm): Torque to 27 Nm (20 ft-lbs).
• Reconnect the return hose and secure it with the clamp using hose clamp pliers.

Step 11: Reinstall the serpentine belt

• Route the belt per the under-hood diagram.
• Use a serpentine belt tool to rotate the tensioner and slip the belt onto the power steering pump pulley.
• Visually confirm the belt is fully seated in every pulley groove.

Step 12: Fill and bleed the power steering system

• Fill the reservoir with power steering fluid (MERCON V ATF) using a funnel.
• With the front wheels still off the ground and engine OFF, turn the steering wheel slowly lock-to-lock 15–20 times.
• Recheck fluid level and top off as needed.
• Start the engine and let it idle; do not rev. Turn lock-to-lock 5–10 more times slowly.
• Shut off the engine, wait 2 minutes, then recheck fluid level and top off.
• Tip: Foamy fluid means air—keep bleeding.

Step 13: Reinstall shields and lower the vehicle

• Reinstall splash shields using a socket set (8mm–15mm) and trim clip tool.
• Lower the SUV using a floor jack (rated 3-ton minimum).

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✅ After Repair

• Start the engine and confirm steering assist is smooth and quiet.
• Check for leaks at the pressure fitting and return hose with a flashlight.
• Test drive at low speed and recheck fluid level once the engine is warm.
• If you hear whining after a drive, re-bleed with the front wheels raised.

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💰 DIY vs Shop Cost

Shop Cost: $550–$950 (parts + labor)

DIY Cost: $180–$380 (parts only)

You Save: $370–$570 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2.5–4.0 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.