how to fix the Ford Explorer Sixth Generation (2020-present) AC that’s not blowing cold air?

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

629 words

Problem Statement

Learn how to diagnose and fix the AC not blowing cold air in Ford Explorer 2020. 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 electrical components.
•Wear gloves and safety glasses when handling refrigerants and AC components.

Symptoms

•AC system blowing warm or hot air
•Unusual noises from the AC compressor
•AC compressor not engaging
•Reduced airflow from the vents
•Visible refrigerant leaks or oil stains around AC components

Diagnostic Steps

1
Check the AC system's refrigerant level using a manifold gauge set.
2
Inspect the AC compressor for proper engagement and listen for abnormal sounds.
3
Examine the AC system for visible leaks, using UV dye if necessary.
4
Test the AC pressure switch with a multimeter to ensure it’s functioning properly.
5
Inspect the cabin air filter for clogging or contamination that may restrict airflow.
6
Scan the vehicle's onboard computer for any diagnostic trouble codes (DTCs) related to the AC system.

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

•Manifold gauge set
•Multimeter
•UV dye kit
•Basic hand tools (socket set, wrenches)
•Safety glasses
•Gloves

Parts Required

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

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Diagnostic Steps

1
Check the AC system's refrigerant level using a manifold gauge set.
2
Inspect the AC compressor for proper engagement and listen for abnormal sounds.
3
Examine the AC system for visible leaks, using UV dye if necessary.
4
Test the AC pressure switch with a multimeter to ensure it’s functioning properly.
5
Inspect the cabin air filter for clogging or contamination that may restrict airflow.
6
Scan the vehicle's onboard computer for any diagnostic trouble codes (DTCs) related to the AC system.

Solution

1. Preparation

Gather tools and safety equipment: gloves, safety glasses, manifold gauge set, multimeter, UV dye kit, and basic hand tools.
Ensure the vehicle is parked on a level surface and the engine is off before starting.

2. Recharge the AC System

Connect Manifold Gauges:
- Attach the blue low-pressure hose to the low-pressure service port and the red high-pressure hose to the high-pressure service port.
Check Pressure Readings:
- Start the engine and set the AC to maximum cold. Note the pressure readings. If low, proceed to recharge.
Add Refrigerant:
- Use the proper refrigerant type (R-134a or R-1234yf) as specified in the owner’s manual. Connect the refrigerant can to the low-pressure side and open the valve slowly to add refrigerant until the correct pressure is achieved.

3. Inspect and Replace Components

Visual Inspection for Leaks:
- Look for signs of refrigerant leaks around the compressor, hoses, and condenser. Use UV dye if necessary.
Test and Replace the AC Compressor (if faulty):
- Disconnect the battery.
- Remove the drive belt from the AC compressor.
- Disconnect electrical connectors and AC lines from the compressor.
- Remove the compressor mounting bolts and replace it with a new unit. Reconnect all components securely.
Replace AC Pressure Switch (if faulty):
- Locate the pressure switch on the AC lines. Disconnect the electrical connector and unscrew the switch.
- Install the new switch and reconnect the electrical connector.

4. Final Checks

Check Cabin Air Filter:
- Locate the cabin air filter housing (usually behind the glove compartment), remove the old filter, and replace it with a new one if it’s clogged.
Recheck Refrigerant Levels:
- After repairs, check the refrigerant levels again using the manifold gauges to ensure they are within the specified range.