my Ford Explorer Fifth Generation (2011-2019) AC is not blowing cold air anymore

Ford Explorer Fifth Generation (2011-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

medium

Severity

3 min read

565 words

Problem Statement

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

Affected Component

HVAC

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Wear safety goggles and gloves when handling refrigerants.

Symptoms

•AC control panel lights are functioning
•Warm air blowing from the vents
•Unusual noises when the AC is turned on
•AC compressor not engaging
•Low refrigerant level warning (if equipped with such a feature)

Diagnostic Steps

1
Inspect the AC system for any visible leaks or damage to hoses and components.
2
Check the refrigerant level using a manifold gauge set.
3
Scan the vehicle's computer for any error codes related to the AC system using an OBD-II scanner.
4
Test the AC compressor operation by checking for electrical power and ground at the compressor connector.
5
Inspect the AC clutch for proper engagement and functionality.
6
Check the cabin air filter for clogs that may impede airflow.

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
•Socket set
•Torque wrench
•AC flush kit
•Refrigerant scale

Parts Required

•Refrigerant (R-134a)
•New AC compressor
•New receiver/dryer

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Diagnostic Steps

1
Inspect the AC system for any visible leaks or damage to hoses and components.
2
Check the refrigerant level using a manifold gauge set.
3
Scan the vehicle's computer for any error codes related to the AC system using an OBD-II scanner.
4
Test the AC compressor operation by checking for electrical power and ground at the compressor connector.
5
Inspect the AC clutch for proper engagement and functionality.
6
Check the cabin air filter for clogs that may impede airflow.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety while working on the electrical components.

2. Check and Recharge Refrigerant

Tools Required: Manifold gauge set, refrigerant (R-134a), refrigerant scale.
Connect the manifold gauge set to the low and high-pressure service ports.
Check the pressure readings against manufacturer specifications.
If low, add refrigerant slowly while monitoring the gauge until the appropriate level is reached.
Disconnect the manifold gauge set and replace the caps.

3. Inspect and Replace AC Compressor

Tools Required: Socket set, torque wrench, AC compressor removal tool.
Remove the serpentine belt by releasing the tension with a wrench.
Disconnect the electrical connector from the AC compressor.
Unscrew the mounting bolts and remove the compressor from the engine bay.
Install the new compressor by reversing the removal process, ensuring all bolts are torqued to specifications.
Reconnect the electrical connector and replace the serpentine belt.

4. Flush and Replace Receiver/Dryer

Tools Required: AC flush kit, new receiver/dryer.
Connect the flush kit to the high-pressure side of the AC system.
Flush the system to remove contaminants and moisture.
Disconnect the flush kit and replace the receiver/dryer to ensure moisture is not introduced into the new system.

5. Final Assembly and Testing

Reconnect the battery.
Start the vehicle and turn on the AC to the maximum setting.
Monitor the temperature at the vents to ensure cold air is being produced.