🔧 RDX - Power Steering “Pump” Replacement (EPS Equipped)

Your RDX uses Electric Power Steering (EPS), which means it does not have a belt-driven hydraulic power steering pump or power steering fluid to replace. If you’re having stiff steering, warning lights, or noises, the fix is usually in the EPS system (battery/charging, fuses, wiring, or the EPS rack/motor).

Difficulty Level: Beginner (checks) / Advanced (rack replacement) | Estimated Time: 0.5-1.5 hours (checks) / 6-10 hours (rack)

Assumption: Stock U.S.-market EPS system (no hydraulic pump).

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⚠️ Safety & Precautions

• ⚠️ Disconnect the negative battery cable before touching EPS connectors or working near the steering column.
• ⚠️ If you remove the steering column joint, keep the steering wheel locked/centered to avoid damaging the cable reel (clock spring) (a ribbon cable for the airbag and buttons).
• ⚠️ Support the vehicle on jack stands on a level surface; never rely on a jack alone.
• ⚠️ After any steering/suspension work, you must get a professional alignment.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 12mm socket
• 14mm socket
• 17mm socket
• 19mm socket
• 3/8" drive ratchet
• 1/2" drive breaker bar
• Torque wrench (20-200 Nm range)
• Flat trim tool
• Pliers
• Paint marker
• OBD2 scan tool with EPS code access (specialty)
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• EPS steering rack assembly - Qty: 1
• Outer tie rod ends - Qty: 2 Replace in pairs
• Rack mounting hardware kit - Qty: 1
• Steering column joint pinch bolt - Qty: 1

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📋 Before You Begin

• Park on level ground, straighten the front wheels, and set the parking brake.
• Use wheel chocks behind the rear wheels.
• Disconnect the battery using a 10mm socket and isolate the negative cable so it can’t spring back.
• If your steering warning light is on, connect a scan tool with EPS access (specialty) and record any stored codes.

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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 along the engine’s accessory belt path using a flashlight (your eyes are the tool here).
• You should not find a power steering fluid reservoir or hoses going to a pump.
• If you see a “P/S” reservoir with fluid hoses, then your vehicle is configured differently than expected and this guide won’t match.

Step 2: Do the quick fixes first (most common causes)

• Check battery connections for looseness or corrosion; tighten with a 10mm socket.
• Low voltage can cause EPS warnings; if you have a multimeter, verify charging system health (optional).
• Check under-dash and under-hood fuse/relay boxes for EPS-related fuses (use the cover diagram). Remove/install using pliers.
• Scan for EPS codes using an OBD2 scan tool with EPS code access (specialty) and save results for reference.

Step 3: Lift and secure the front end

• Loosen front lug nuts slightly with a 19mm socket and breaker bar.
• Raise the front with a floor jack (rated 3-ton minimum).
• Place jack stands (rated 3-ton minimum) at the proper front support points and lower onto the stands.
• Remove the front wheels using a 19mm socket.

Step 4: Mark tie rod positions (helps get you to the alignment shop)

• Use a paint marker to mark the relationship of the outer tie rod end to the inner tie rod threads.
• This doesn’t replace an alignment, but it helps keep toe close.

Step 5: Disconnect the outer tie rod ends

• Remove the tie rod end nut using a 17mm socket.
• Separate the tie rod end from the steering knuckle. If it’s stuck, tap the knuckle area (not the threads) with controlled force; use a breaker bar only for leverage, not as a hammer.
• Torque to 49 Nm (36 ft-lbs) on reassembly (tie rod end nut).

Step 6: Disconnect the steering column joint from the rack (critical)

• Inside the cabin/at the firewall area (access varies), locate the steering intermediate shaft pinch bolt.
• Mark the shaft-to-rack relationship using a paint marker.
• Remove the pinch bolt using a 12mm socket.
• Torque to 29 Nm (21 ft-lbs) on reassembly (pinch bolt).
• Do not rotate steering wheel once disconnected.

Step 7: Unplug EPS electrical connectors

• At the rack, unplug the EPS motor/control connectors by releasing the locks with a flat trim tool.
• Inspect for water intrusion or green corrosion before installing the new rack.

Step 8: Remove the rack mounting bolts and remove the rack

• Support the rack as you remove mounting hardware using a floor jack (lightly supporting) and your hands.
• Remove the rack mounting bolts using a 14mm socket and breaker bar as needed.
• Torque to 88 Nm (65 ft-lbs) on reassembly (rack mounting bolts).
• Work the rack out carefully without pulling on wiring.

Step 9: Transfer parts and install the new rack

• If required, transfer any brackets/heat shields using a 10mm socket.
• Install the new rack in position and start bolts by hand to prevent cross-threading.
• Tighten rack bolts evenly using a 14mm socket, then Torque to 88 Nm (65 ft-lbs).
• Reconnect EPS connectors until fully seated and locked.

Step 10: Reconnect steering shaft and tie rods

• Align your paint marks and reinstall the pinch bolt using a 12mm socket, then Torque to 29 Nm (21 ft-lbs).
• Reinstall tie rod ends into knuckles using a 17mm socket, then Torque to 49 Nm (36 ft-lbs).
• Reinstall wheels and hand-tighten lug nuts using a 19mm socket.

Step 11: Lower the vehicle

• Raise slightly with the floor jack, remove jack stands, then lower fully.
• Torque to 108 Nm (80 ft-lbs) in a star pattern using a torque wrench (lug nuts).

Step 12: Clear codes and perform EPS checks

• Reconnect the battery using a 10mm socket.
• Use the scan tool with EPS access (specialty) to clear EPS codes.
• Start the engine and confirm the steering assist feels normal with the vehicle stationary, then at low speed.

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✅ After Repair

• Get a 4-wheel alignment as soon as possible.
• Test drive at low speed first. Confirm the steering wheel returns to center smoothly.
• Rescan with a scan tool with EPS access (specialty) and confirm no EPS codes return.
• If the EPS light stays on, stop and recheck connectors, battery voltage, and fuse/ground connections.

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💰 DIY vs Shop Cost

Shop Cost: ₹65,000-₹1,50,000 (parts + labor)

DIY Cost: ₹35,000-₹1,05,000 (parts only)

You Save: ₹20,000-₹45,000 by doing it yourself!

Shop labor rates vary but typically run ₹1,000-₹3,000/hour. This repair takes a shop approximately 6-10 hours.

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🎯 Ready to get started?

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