how to troubleshoot my Ford Explorer Fifth Generation (2011-2019) AC not blowing cold air?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

559 words

Problem Statement

Learn how to troubleshoot and fix AC not blowing cold air in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the AC system to prevent burns.

Symptoms

•AC system blowing warm or hot air
•High cabin humidity levels
•Unusual noises from the AC compressor
•AC compressor does not engage
•"Check AC" warning light illuminated on the dashboard

Diagnostic Steps

1
Inspect the AC system for visible leaks or damage to hoses and connections.
2
Use an OBD-II scanner to check for any error codes related to the AC system.
3
Verify the AC compressor is engaging by checking if the clutch is spinning when the AC is turned on.
4
Check the refrigerant level using a manifold gauge set.
5
Inspect the AC condenser for blockages or debris that may restrict airflow.
6
Test the AC control module and associated fuses for proper operation.

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
•Manifold gauge set
•Multimeter
•Socket set
•Refrigerant recovery equipment

Parts Required

•Refrigerant (R-134a or R-1234yf)
•AC compressor (if needed)
•AC condenser (if needed)
•Hoses or seals (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect the AC system for visible leaks or damage to hoses and connections.
2
Use an OBD-II scanner to check for any error codes related to the AC system.
3
Verify the AC compressor is engaging by checking if the clutch is spinning when the AC is turned on.
4
Check the refrigerant level using a manifold gauge set.
5
Inspect the AC condenser for blockages or debris that may restrict airflow.
6
Test the AC control module and associated fuses for proper operation.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is off.
Wear safety glasses and gloves for protection.

2. Recover Refrigerant

Connect the manifold gauge set to the low and high-pressure ports on the AC system.
Follow EPA guidelines to safely recover refrigerant into a recovery tank.
Ensure proper disposal of recovered refrigerant according to local regulations.

3. Recharge AC System

Check the refrigerant level in the system using the manifold gauges. If low, refill with the appropriate refrigerant (R-134a or R-1234yf depending on the model).
Start the engine and turn the AC to the maximum setting.
Add refrigerant while monitoring the gauge readings to ensure they are within the manufacturer's specified range.

4. Replace AC Components (if necessary)

If the compressor is not engaging, disconnect the electrical connector and check for power using a multimeter.
If the compressor is faulty, remove it by:
- Disconnecting the refrigerant lines (use caution and recover refrigerant first).
- Unbolting the compressor from its mounting bracket.
- Installing the new compressor and reconnecting all lines securely.
Replace any damaged hoses or components as identified during inspection.

5. Test the System

After recharging or replacing components, run the AC system to check for proper operation.
Monitor for any unusual noises or vibrations that may indicate further issues.
Ensure the system is producing cold air at the vents.