Power Steering Hose - High Pressure

This procedure replaces the high-pressure power steering hose on 2016-2021 Honda Civic 1.5L Turbo models equipped with hydraulic power steering (note: most models have electric power steering with no fluid).

Warnings

Tools required

Parts

• High pressure power steering hose × 1 — Use OEM specification
• Power steering hose O-rings × 2 — Included with OEM hose or purchase separately

Preparation

1. Verify vehicle is equipped with hydraulic power steering by checking for power steering fluid reservoir in engine bay
2. Park vehicle on level surface and apply parking brake
3. Place wheel chocks behind rear wheels
4. Allow engine to cool completely if recently driven
5. Remove engine cover if equipped by pulling upward on retaining clips
6. Use turkey baster or fluid extractor to remove as much power steering fluid as possible from reservoir to minimize spillage

Procedure

1. 1

   Raise and secure vehicle
   Raise the front of the vehicle using a floor jack at the designated front jacking point. Support the vehicle securely on jack stands placed at the front subframe jacking points. Ensure vehicle is stable before working underneath.
2. 2

   Access high-pressure hose at pump
   Locate the high-pressure power steering hose connection at the power steering pump on the passenger side of the engine bay. Clean the area around the fitting with a wire brush and shop towel to remove dirt and debris that could contaminate the system.
3. 3

   Disconnect hose at pump
   Place drain pan below the pump connection. Using a 17mm flare nut wrench, loosen the high-pressure line fitting at the power steering pump. Expect power steering fluid to drain. Once loose, unthread the fitting by hand and move the line away from the pump. Cover the pump port with a clean shop towel to prevent contamination.
4. 4

   Locate steering rack connection
   From underneath the vehicle, locate where the high-pressure hose connects to the power steering rack on the driver side of the vehicle, near the firewall. Clean the area around the fitting thoroughly.
5. 5

   Disconnect hose at rack
   Position drain pan under the steering rack connection. Using a 17mm flare nut wrench, carefully loosen the high-pressure line fitting at the steering rack. Once loose, unthread by hand and allow remaining fluid to drain. Cover the rack port with a clean shop towel.
6. 6

   Remove hose routing clips
   Trace the high-pressure hose along its routing path and release any retaining clips or brackets securing it to the chassis or engine bay. Note the exact routing for installation of the new hose.
7. 7

   Remove old hose
   Carefully maneuver the old high-pressure hose out of the engine bay, taking care not to damage surrounding components. Inspect the old hose for signs of failure such as cracks, bulging, or leaking at crimp points.
8. 8

   Prepare new hose
   Unpack the new high-pressure power steering hose. Verify it matches the old hose in length and fitting configuration. Install new O-rings on both fittings, lightly lubricating them with clean power steering fluid. Do not reuse old O-rings.
9. 9

   Route new hose
   Route the new high-pressure hose through the engine bay following the exact path of the original hose. Ensure the hose is not kinked, twisted, or in contact with sharp edges, hot exhaust components, or moving parts. Secure hose in routing clips.
10. 10

    Connect hose to steering rack
    Remove the shop towel from the steering rack port. Thread the high-pressure line fitting onto the steering rack by hand until finger-tight, ensuring the O-ring seats properly. Using a torque wrench and 17mm flare nut wrench, tighten the fitting to specification.
    Torque spec

    Power Steering Line Fittings30 Nm (22 lb-ft)
11. 11

    Connect hose to pump
    Remove the shop towel from the pump port. Thread the high-pressure line fitting onto the power steering pump by hand until finger-tight, ensuring the O-ring seats properly. Using a torque wrench and 17mm flare nut wrench, tighten the fitting to specification.
    Torque spec

    Power Steering Line Fittings30 Nm (22 lb-ft)
12. 12

    Fill power steering system
    Fill the power steering reservoir with Honda Genuine Power Steering Fluid to the cold MAX line. Do not overfill. Allow fluid to settle for a few minutes.
13. 13

    Bleed air from system
    With engine off, turn the steering wheel slowly from lock to lock several times to distribute fluid through the system. Check reservoir level and add fluid as needed. Repeat until fluid level stabilizes and no more air bubbles appear in the reservoir.
14. 14

    Lower vehicle and final bleeding
    Remove jack stands and lower vehicle to ground. Start engine and allow to idle. Turn steering wheel slowly from lock to lock 3-4 times while checking for leaks at both connections. Check fluid level and top off to HOT MAX line. Listen for unusual pump noises indicating air in the system.

Reassembly

1. Reinstall engine cover by pressing down on retaining clips until they click into place
2. Wipe up any spilled power steering fluid from engine bay and undercarriage
3. Remove wheel chocks

Verification

• Inspect both power steering line connections for any signs of fluid leakage while engine is running
• Turn steering wheel fully left and right while vehicle is running and verify smooth operation with no unusual noises
• Check power steering fluid level is at HOT MAX line with engine at operating temperature
• Test drive vehicle and verify normal power steering assist operation and no fluid leaks
• Recheck fluid level and connections after test drive and again after 24 hours of normal driving

Related trouble codes on this vehicle

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