how to fix the AC not blowing cold air in my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix the AC not blowing cold air in Ford Explorer (2020-present). Step-by-step guide with symptoms, 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 the AC system.
•Allow engine components to cool before inspection or repairs.

Symptoms

•AC system blowing warm air
•Strange noises from the AC compressor
•AC clutch not engaging
•Visible refrigerant leaks
•High cabin humidity levels
•Reduced airflow from vents

Diagnostic Steps

1
Inspect the AC system's refrigerant levels using a gauge.
2
Check for any visible refrigerant leaks around hoses and connections.
3
Test the AC compressor clutch operation by observing its engagement during AC operation.
4
Scan the vehicle's onboard computer for any error codes related to the HVAC system.
5
Inspect the AC condenser for blockages or damage.
6
Verify the operation of the AC control switch and blower motor.

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

•Safety goggles
•Gloves
•AC manifold gauge set
•Refrigerant
•Leak detection dye
•Vacuum pump
•Socket set

Parts Required

•Refrigerant (R-134a or R-1234yf)
•AC compressor (if replacement is necessary)
•AC condenser (if damaged)

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Diagnostic Steps

1
Inspect the AC system's refrigerant levels using a gauge.
2
Check for any visible refrigerant leaks around hoses and connections.
3
Test the AC compressor clutch operation by observing its engagement during AC operation.
4
Scan the vehicle's onboard computer for any error codes related to the HVAC system.
5
Inspect the AC condenser for blockages or damage.
6
Verify the operation of the AC control switch and blower motor.

Solution

1. Preparation

Gather tools and parts. Ensure the vehicle is parked on a flat surface with the engine off.
Tools Required: Safety goggles, gloves, AC manifold gauge set, refrigerant (if low), leak detection dye, vacuum pump.
Safety Warnings: Disconnect the battery before working on the AC system.

2. Check and Recharge Refrigerant

Sub-steps:
1. Connect the AC manifold gauge set to the low and high-pressure ports.
2. Start the engine and turn on the AC to the maximum setting.
3. Check the pressure readings. If the low side is below 30 psi, the system may be low on refrigerant.
4. If low, add refrigerant according to the manufacturer's specifications (usually R-134a or R-1234yf).
5. Monitor the system while adding refrigerant until the pressures stabilize within normal operating range.

3. Inspect and Replace the AC Compressor

Sub-steps:
1. Remove any covers or components obstructing access to the AC compressor.
2. Disconnect the electrical connector from the AC compressor.
3. Use a socket set to remove the bolts securing the compressor to the engine.
4. Carefully detach the refrigerant lines from the compressor, ensuring to capture any residual refrigerant in a recovery unit.
5. Install the new AC compressor, following reverse procedures and tightening bolts to manufacturer specifications (typically 15-20 ft-lbs).
6. Reconnect the refrigerant lines and electrical connector.

4. Check AC System Components

Sub-steps:
1. Inspect the AC condenser for blockages or damage; clean or replace as necessary.
2. Test the blower motor operation to ensure proper airflow; replace if defective.
3. Ensure that the AC control switch is functioning correctly; replace if faulty.