🔧 Forester - Power Steering Pump Replacement

Your Forester does not use a hydraulic power steering pump. It uses Electric Power Steering (EPS), where an electric motor and control unit assist steering through the steering rack.

If you’re having “no power steering,” whining, stiff steering, or warning lights, the fix is usually in the EPS electrical system (battery/charging, fuses, wiring, EPS rack/motor), not a pump replacement.

Difficulty Level: Beginner (diagnosis) | Estimated Time: 0.5–1.5 hours

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⚠️ Safety & Precautions

• ⚠️ Keep hands clear of the steering column and linkage when the key is ON; EPS can move with system checks.
• ⚠️ If lifting the vehicle, support it with jack stands on solid points before going underneath.
• ⚠️ Disconnect the negative battery terminal if unplugging EPS connectors.

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🔧 Required Tools

You'll need the following tools for this repair:

• OBD2 scan tool with EPS/ABS capability (specialty)
• Digital multimeter
• 10mm socket
• Ratchet (3/8")
• Trim clip tool
• Flashlight
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• EPS main fuse(s) (as needed) - Qty: 1
• 12V battery (as needed) - Qty: 1
• EPS steering rack assembly (as needed) - Qty: 1

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📋 Before You Begin

• Park on level ground, wheels straight, and set the parking brake.
• Install wheel chocks behind the rear wheels.
• If you’ll unplug any steering/EPS connectors, disconnect the battery using a 10mm socket (negative terminal first).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm it’s EPS (no pump to replace)

• Open the hood and look for a power steering fluid reservoir and belt-driven pump—your Forester won’t have them because it uses EPS.
• If you see fluid leaks, they are from something else (oil/coolant/CVT), not power steering fluid.

Step 2: Check for EPS warning lights and pull codes

• Plug in an OBD2 scan tool with EPS/ABS capability (specialty). (A “basic” code reader often cannot read EPS codes.)
• Read codes from EPS and ABS/VDC modules and write them down.
• Tip: Take a photo of codes for reference.

Step 3: Quick battery and charging system check

• Use a digital multimeter to check battery voltage with the engine OFF (healthy batteries are typically around 12.6V fully charged).
• Start the engine and recheck voltage (charging is typically around 13.5–14.7V).
• If voltage is low, EPS may reduce assist or shut down—address battery/charging first.

Step 4: Inspect EPS-related fuses and power feeds

• Turn ignition OFF.
• Check the under-hood and interior fuse panels for any EPS/Power Steering labeled fuses using a flashlight.
• Remove and inspect fuses as needed; replace any blown fuse with the correct rating.
• If you’re unsure, use a digital multimeter in continuity mode to verify a fuse is good.

Step 5: Check EPS connectors for looseness or corrosion

• If lifting the vehicle, raise the front using a floor jack (rated 3-ton minimum) and support with jack stands (rated 3-ton minimum).
• Remove any lower splash shield clips using a trim clip tool to improve visibility.
• Visually inspect EPS wiring/connectors on the steering rack area for damaged insulation, loose plugs, or green/white corrosion.
• If unplugging connectors, disconnect the battery first using a 10mm socket.

Step 6: Decide the repair path based on results

• If you have low voltage/charging issues, repair that first (battery, alternator, grounds).
• If you have a repeat EPS fault code pointing to the rack/motor/control unit, the common fix is replacing the EPS steering rack assembly (this is an advanced job and typically requires alignment and sometimes calibration).
• If you want, you can use your scan tool’s “data” to monitor steering assist/torque sensor values while turning the wheel to help confirm the fault.

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✅ After Repair

• Clear EPS/ABS codes with the OBD2 scan tool with EPS/ABS capability (specialty) and recheck which ones return.
• Road test in a safe area: confirm normal steering assist, no EPS warning light, and no abnormal noises.
• If an EPS rack is replaced, get a 4-wheel alignment immediately.

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💰 DIY vs Shop Cost

Shop Cost: $150-$300 (diagnosis) / $1,500-$3,000 (if EPS rack replacement is needed)

DIY Cost: $0-$50 (fuses/testing) / $700-$1,800 (parts only if rack is needed)

You Save: $150-$1,200+ by doing the diagnosis and/or DIY repair!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.5 hours to diagnose, and several hours if replacing the EPS rack.

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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.