how to check for refrigerant leaks in my Ford Explorer Fifth Generation (2011-2019) AC system

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

504 words

Problem Statement

Learn how to check for refrigerant leaks in your Ford Explorer AC system. Step-by-step guide with diagnostic steps and tools required.

Affected Component

HVAC

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components
•Wear safety goggles and gloves to protect against refrigerant exposure

Symptoms

•AC system not blowing cold air
•Hissing or bubbling sound when AC is running
•Increased humidity inside the vehicle
•Visible oil residue around AC components
•Refrigerant low-pressure warning light illuminated on the dashboard

Diagnostic Steps

1
Inspect visually for signs of oil or refrigerant residue around AC components (compressor, condenser, evaporator)
2
Use an electronic refrigerant leak detector to scan for leaks in the system
3
Perform a soap bubble test at suspected leak points by applying soapy water and looking for bubbles
4
Check the AC service ports for leakage by inspecting the Schrader valves
5
Monitor the system pressure with a manifold gauge set to verify low refrigerant levels

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

•Electronic refrigerant leak detector
•Manifold gauge set
•Soap bubble solution (water and dish soap)
•Spray bottle

Parts Required

•Refrigerant (if recharging is necessary)
•Replacement O-rings or seals (if leaks are found)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect visually for signs of oil or refrigerant residue around AC components (compressor, condenser, evaporator)
2
Use an electronic refrigerant leak detector to scan for leaks in the system
3
Perform a soap bubble test at suspected leak points by applying soapy water and looking for bubbles
4
Check the AC service ports for leakage by inspecting the Schrader valves
5
Monitor the system pressure with a manifold gauge set to verify low refrigerant levels

Solution

1. Preparation

Gather the necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent any electrical issues while working on the AC system.

2. Visual Inspection

Inspect the AC compressor, condenser, and any visible hoses for signs of oil or refrigerant.
Look closely at connection points for any leaks or wear.

3. Electronic Leak Detection

Turn on the AC system to its maximum setting.
Use an electronic refrigerant leak detector:
- Calibrate the device as per manufacturer instructions.
- Move the detector around the AC components, focusing on joints and connections.
- Listen for alerts indicating the presence of refrigerant.

4. Soap Bubble Test

Prepare a mixture of water and dish soap in a spray bottle.
Spray the solution on the suspected leak points:
- Look for bubbles forming, which indicates the presence of a leak.
Wipe away the solution after testing.

5. Pressure Check

Connect a manifold gauge set to the high and low-pressure service ports:
- Follow manufacturer specifications for correct connection.
Read the pressure levels:
- If readings are below recommended levels, this indicates a refrigerant leak.