Ford Explorer Sixth Generation (2020-present) AC not blowing cold air

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

519 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer (2020-present). Step-by-step guide with symptoms, diagnostics, 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 components.
•Handle refrigerants with care and use appropriate safety equipment.

Symptoms

•AC compressor not engaging
•Warm air blowing from vents
•Unusual noises when AC is turned on
•Fogging or condensation on the windows
•AC system cycles on and off frequently
•Refrigerant leak detected (if applicable)

Diagnostic Steps

1
Check for any error codes using an OBD-II scanner to identify issues with the AC system.
2
Inspect the AC compressor for signs of damage or wear and check if it is engaging when the AC is turned on.
3
Verify the refrigerant level and condition; look for any visible leaks in the system.
4
Test the AC relay and fuse to ensure they are functioning properly.
5
Examine the cabin air filter for clogs that could restrict airflow.
6
Inspect the AC pressure switch to confirm it is operating correctly.

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
•Refrigerant gauge set
•Socket set
•Torque wrench
•Screwdrivers

Parts Required

•Cabin air filter
•Refrigerant (R-134a or R-1234yf)
•AC compressor (if faulty)

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Diagnostic Steps

1
Check for any error codes using an OBD-II scanner to identify issues with the AC system.
2
Inspect the AC compressor for signs of damage or wear and check if it is engaging when the AC is turned on.
3
Verify the refrigerant level and condition; look for any visible leaks in the system.
4
Test the AC relay and fuse to ensure they are functioning properly.
5
Examine the cabin air filter for clogs that could restrict airflow.
6
Inspect the AC pressure switch to confirm it is operating correctly.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on the AC system.

2. Check and Replace the Cabin Air Filter

Locate the cabin air filter housing, typically under the dashboard.
Remove the cover and take out the old filter.
Install a new cabin air filter, ensuring it is oriented correctly.
Reattach the cover securely.

3. Recharge the AC System

Connect a refrigerant gauge set to the AC service ports.
Verify the low and high-side pressures against manufacturer specifications.
If low, add the appropriate refrigerant (R-134a or R-1234yf depending on the system).
Monitor the pressures while the AC is running to ensure they stabilize.

4. Inspect and Replace the AC Compressor (if faulty)

Disconnect the AC electrical connector and remove the drive belt from the compressor.
Unscrew the mounting bolts and carefully remove the compressor from the engine bay.
Install the new compressor, ensuring all mounting bolts are torqued to specifications (typically around 15-20 ft-lbs).
Reconnect the AC electrical connector and reattach the drive belt.

5. Test the AC System

Reconnect the battery.
Start the engine and turn on the AC to check for cold air and proper operation.