FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
why does my Toyota Highlander XU70 (2020-Present) make a hissing noise when I turn - Toyota Highlander
Home/Cars/Toyota/Highlander/XU70 (2020-Present)/why does my Toyota Highlander XU70 (2020-Present) make a hissing noise when I turn

why does my Toyota Highlander XU70 (2020-Present) make a hissing noise when I turn

Toyota Highlander XU70 (2020-Present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
574 words

Problem Statement

Learn how to diagnose and fix the hissing noise when turning in Toyota Highlander XU70. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Steering
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Raise and support the vehicle securely before working underneath.

Symptoms

  • •Hissing noise when turning the steering wheel
  • •Difficulty in steering or increased steering effort
  • •Fluid leaks under the vehicle
  • •Steering wheel vibration or pulsation
  • •Unusual wear on tires

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Socket set
  • •Wrenches
  • •Screwdrivers
  • •Torque wrench
  • •Power steering fluid

Parts Required

  • •Power steering pump (if faulty)
  • •Power steering hoses (if leaking)
  • •Steering rack (if damaged)

Additional Information

Affected Component
Steering
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather tools and parts needed.
  • Ensure the vehicle is parked on a level surface and the engine is off.
  • Wear safety gloves and goggles.
2. Inspect and Top Off Power Steering Fluid
  • Locate the power steering fluid reservoir.
  • Wipe the cap clean to prevent contaminants from entering.
  • Open the reservoir and check fluid level; top off with the recommended power steering fluid if low.
  • Re-secure the cap.
3. Check for Leaks
  • Visually inspect the power steering pump, hoses, and connections for any signs of leaks.
  • If leaks are found, identify the source (hose, pump, or rack) to determine the necessary replacement parts.
4. Replace Faulty Components
  • Power Steering Pump Replacement:

    • Disconnect the battery to prevent electrical issues.
    • Remove the serpentine belt from the power steering pump.
    • Disconnect power steering lines from the pump using appropriate wrenches.
    • Remove the mounting bolts and take out the old pump.
    • Install the new pump, ensuring all connections are secure.
    • Reattach the serpentine belt and reconnect the battery.
  • Steering Rack Replacement (if necessary):

    • Lift the vehicle and support it with jack stands.
    • Disconnect the steering linkage from the rack.
    • Remove any components blocking access to the steering rack (e.g., suspension parts).
    • Unbolt the steering rack and carefully remove it from the vehicle.
    • Install the new steering rack, reverse the removal steps, and ensure proper torque on all bolts.
5. Refill and Bleed Power Steering System
  • After replacing any components, refill the power steering fluid reservoir.
  • Start the engine and turn the steering wheel from lock to lock several times to bleed air from the system.
  • Check fluid levels again and top off if necessary.