why does my Ford Explorer produce a hissing sound when turning the steering wheel

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

408 words

Problem Statement

Learn how to diagnose and fix the hissing sound when turning the steering wheel in a Ford Explorer. Step-by-step guide with symptoms and solutions.

Affected Component

Steering

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening any components.

Symptoms

•Hissing noise occurs when turning the steering wheel
•Difficulty steering or increased steering effort
•Fluid leak observed near the power steering pump or lines
•Steering wheel feels stiff or unresponsive at times
•Check power steering fluid level is low

Diagnostic Steps

1
Inspect the power steering fluid level and condition using the dipstick.
2
Check for visible leaks in the power steering lines, pump, and rack-and-pinion assembly.
3
Listen for the hissing noise while turning the steering wheel with the engine running to pinpoint the source.
4
Use a stethoscope to localize the noise if needed.
5
Inspect the power steering pump for wear or damage.
6
Check the steering gear box for signs of wear or internal failure.

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
•Turkey baster
•Power steering fluid
•Stethoscope (optional)

Parts Required

•Power steering fluid
•Power steering pump (if necessary)
•Power steering hoses (if necessary)

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Diagnostic Steps

1
Inspect the power steering fluid level and condition using the dipstick.
2
Check for visible leaks in the power steering lines, pump, and rack-and-pinion assembly.
3
Listen for the hissing noise while turning the steering wheel with the engine running to pinpoint the source.
4
Use a stethoscope to localize the noise if needed.
5
Inspect the power steering pump for wear or damage.
6
Check the steering gear box for signs of wear or internal failure.

Solution

1. Preparation

Gather tools and parts.
Park the vehicle on a level surface and set the parking brake.
Disconnect the battery to ensure safety during repairs.

2. Inspect and Replace Power Steering Fluid

Sub-steps:
1. Remove the power steering fluid reservoir cap.
2. If the fluid is dark or contaminated, siphon it out using a turkey baster.
3. Refill with manufacturer-recommended power steering fluid to the proper level.

3. Repair or Replace Leaking Components

Sub-steps:
1. Identify leaking hoses or fittings. If damaged, remove the leaking component.
2. Install new hoses or fittings using a socket set; ensure they are secure.
3. If the power steering pump is leaking, remove it by unbolting it from the mounting bracket and disconnecting the hoses.
4. Install the new power steering pump and reconnect all hoses.

4. Bleed the Power Steering System

Sub-steps:
1. Fill the power steering reservoir with fluid.
2. Start the engine and turn the steering wheel from lock to lock several times to expel air.
3. Check fluid level; top off if necessary.

5. Reconnect Battery

Reconnect the battery and ensure all connections are secure.

Tools Required:

Socket set
Turkey baster
Power steering fluid
Stethoscope (optional)

Parts Required:

Power steering fluid
Power steering pump (if necessary)
Power steering hoses (if necessary)

Estimated Repair Time: 1-3 hours

Safety Warnings:

Disconnect battery before working on electrical systems.
Allow engine to cool before opening any components.