🔧 Power Steering Pump - Diagnosis

Your F-150 does not use a traditional hydraulic power steering pump. It uses Electric Power-Assisted Steering (EPAS), so there is no belt-driven pump to replace. If you have steering assist problems, the usual fault is in the steering gear, EPAS motor, wiring, fuse, or control system.

Difficulty Level: Advanced | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• Disconnect the negative battery cable before working on EPAS components.
• Do not turn the steering wheel with the steering gear disconnected.
• Support the vehicle securely on jack stands; do not rely on a jack alone.
• Keep hands clear of the steering linkage when reconnected.
• If steering assist warning lights are present, a scan tool may be needed after repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 13mm socket
• 15mm socket
• 18mm socket
• 21mm socket
• Ratchet
• Breaker bar
• Torque wrench
• Flathead screwdriver
• Trim panel tool
• Floor jack (rated 3-ton minimum)
• Jack stands (rated for truck weight)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• Scan tool (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• EPAS steering gear assembly - Qty: 1
• Steering shaft pinch bolt - Qty: 1
• Front subframe bolts - Qty: 4
• Steering gear mounting bolts - Qty: 2
• Alignment service - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Center the steering wheel and lock it in place if possible.
• Disconnect the negative battery cable and wait at least 5 minutes.
• Have the truck aligned after repair.
• Label fasteners as you remove them.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect power and prepare the front end

• Use a 10mm socket to disconnect the negative battery cable.
• Raise the front of the truck with a floor jack and support it with jack stands.
• Remove the front wheels with a 21mm socket.

Step 2: Access the steering gear

• Use a trim panel tool and ratchet to remove any underbody shields or splash panels blocking access.
• Locate the steering shaft connection at the steering gear.

Step 3: Disconnect the steering shaft

• Use an 18mm socket to remove the steering shaft pinch bolt.
• Separate the steering shaft from the steering gear input shaft.
• Mark the shaft position before removal.

Step 4: Remove the steering gear

• Support the steering gear with a jack or helper.
• Use a 15mm socket and 18mm socket to remove the steering gear mounting bolts.
• Lower and remove the steering gear assembly from the truck.

Step 5: Install the new steering gear

• Position the new EPAS steering gear assembly in place.
• Install the mounting bolts by hand first, then tighten with a torque wrench.
• Torque to factory specification for the steering gear bolts.
• Reconnect the steering shaft and install a new pinch bolt.
• Torque to factory specification for the steering shaft pinch bolt.

Step 6: Reassemble the front end

• Reinstall all shields and panels using the ratchet and trim panel tool.
• Reinstall the front wheels with a 21mm socket.
• Torque the wheel lug nuts to factory specification.
• Lower the truck to the ground.

Step 7: Restore power and check the system

• Reconnect the negative battery cable with a 10mm socket.
• Use a scan tool to clear steering-related fault codes.
• Check for warning lights and verify steering assist operation.

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✅ After Repair

• Start the engine and turn the wheel lock-to-lock slowly.
• Confirm there are no steering assist warnings.
• Drive the truck carefully and listen for abnormal noises.
• Schedule a four-wheel alignment immediately after repair.

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💰 DIY vs Shop Cost

Shop Cost: $1,200-$2,000 (parts + labor)

DIY Cost: $500-$1,200 (parts only)

You Save: $700-$800 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-4 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.