why does my Toyota Highlander make a whining noise when going around corners?

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

481 words

Problem Statement

Learn how to diagnose and fix whining noise when turning in Toyota Highlander. Step-by-step guide with diagnostic procedures 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 components.
•Allow the engine to cool before inspecting the power steering system.

Symptoms

•Whining noise when turning the steering wheel
•Difficulty steering, especially at low speeds
•Fluid leak under the vehicle (if related to power steering)
•Increased steering effort required to turn
•Noise may change with speed or steering angle

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible leaks around the power steering pump and hoses.
3
Test the power steering pump for proper operation using a gauge.
4
Inspect the steering linkage and rack for wear or damage.
5
Listen for noise from the transmission or differential while turning.

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

•OBD-II scanner
•Socket set
•Line wrenches
•Siphon pump
•Torque wrench

Parts Required

•Power steering fluid
•Power steering pump (if faulty)
•Steering linkage components (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the power steering fluid level and condition.
2
Check for any visible leaks around the power steering pump and hoses.
3
Test the power steering pump for proper operation using a gauge.
4
Inspect the steering linkage and rack for wear or damage.
5
Listen for noise from the transmission or differential while turning.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Power Steering Fluid

Locate the power steering reservoir and remove the cap.
Check the fluid level; add manufacturer-recommended power steering fluid if low.
If the fluid is dirty or contaminated, drain and replace it:
- Attach a siphon pump to the reservoir to remove old fluid.
- Refill with fresh power steering fluid until the correct level is reached.

3. Inspect and Repair Power Steering Pump

Remove the drive belt from the power steering pump using a socket set.
Disconnect the power steering lines (using line wrenches) and check for leaks.
Remove the pump from its mounting bracket.
Install a new power steering pump if it is faulty:
- Position the new pump and secure it with mounting bolts, torquing to manufacturer specifications.
- Reconnect the power steering lines and the drive belt.

4. Inspect Steering Components

Check the steering rack and linkage for any signs of damage.
Replace any worn or damaged components, including tie rods and bushings.
Grease or lubricate any joints as necessary.