why does my Toyota Corolla E170 (2013-2019) make a hissing noise when turning the steering wheel?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

515 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Discover how to diagnose and fix the hissing noise when turning the steering wheel in a Toyota Corolla E170. Step-by-step guide included.

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 opening any fluid reservoirs.

Symptoms

•Hissing noise when turning the steering wheel
•Difficulty in steering or a delayed response
•Fluid leak under the vehicle
•Steering wheel feels stiff or unresponsive
•Check engine or power steering warning light illuminated

Diagnostic Steps

1
Inspect the power steering fluid level and condition in the reservoir.
2
Check for visible leaks around power steering hoses, pump, and rack and pinion assembly.
3
Listen for the hissing noise while turning the wheel to determine if it is coming from the pump or rack.
4
Test the power steering pump operation by turning the wheel while the engine is running.
5
Use a multimeter to check electrical connections to the power steering assist motor (if applicable).
6
Inspect the steering linkage and joints for wear or damage.

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
•Wrench set
•Funnel
•Fluid container

Parts Required

•Power steering fluid
•Power steering pump (if replacement is necessary)

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 in the reservoir.
2
Check for visible leaks around power steering hoses, pump, and rack and pinion assembly.
3
Listen for the hissing noise while turning the wheel to determine if it is coming from the pump or rack.
4
Test the power steering pump operation by turning the wheel while the engine is running.
5
Use a multimeter to check electrical connections to the power steering assist motor (if applicable).
6
Inspect the steering linkage and joints for wear or damage.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and turn off the engine.
Disconnect the battery for safety.

2. Inspect and Replace Power Steering Fluid

Tools Required: Socket set, funnel, fluid container
Remove the power steering fluid reservoir cap.
Using a siphon or turkey baster, extract old fluid into a container.
Refill the reservoir with the specified power steering fluid (check owner's manual for type).
Replace the cap securely.

3. Replace Power Steering Pump (if faulty)

Tools Required: Socket set, wrench set, power steering fluid
Disconnect the battery again for safety.
Remove any components obstructing access to the power steering pump (like the serpentine belt).
Disconnect the power steering lines from the pump (be prepared for fluid spillage).
Unbolt the pump from its mounting bracket and remove it.
Install the new pump, securing it with bolts to the bracket.
Reconnect the power steering lines, ensuring they are tightened and leak-free.
Reinstall any other components removed for access.

4. Bleed the Power Steering System

Tools Required: None
With the vehicle running, turn the steering wheel from lock to lock several times.
Check the fluid level in the reservoir and add more if necessary.
Inspect for any leaks during this process.