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

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

598 words

Problem Statement

Learn how to troubleshoot and fix AC not blowing cold air in Ford Explorer (2020-present). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

HVAC

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•AC system blowing warm air
•Unusual noises from the AC compressor
•AC compressor not engaging
•Increased humidity inside the cabin
•Frost buildup on AC components

Diagnostic Steps

1
Inspect the AC control settings to ensure they are set to the appropriate temperature and mode.
2
Check for any visible leaks in the AC system components, including hoses and connections.
3
Use an OBD-II scanner to check for any error codes related to the AC system.
4
Measure the refrigerant pressure using a manifold gauge set to ensure it is within the manufacturer's specified range.
5
Inspect the AC compressor for proper operation and any signs of damage.
6
Check the cabin air filter to ensure it is not clogged, as this can affect 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
•Safety glasses
•Gloves
•Socket set
•Ratchet
•Torque wrench

Parts Required

•Refrigerant (R-134a or R-1234yf, depending on vehicle specifications)
•AC compressor (if faulty)
•AC hoses or fittings (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect the AC control settings to ensure they are set to the appropriate temperature and mode.
2
Check for any visible leaks in the AC system components, including hoses and connections.
3
Use an OBD-II scanner to check for any error codes related to the AC system.
4
Measure the refrigerant pressure using a manifold gauge set to ensure it is within the manufacturer's specified range.
5
Inspect the AC compressor for proper operation and any signs of damage.
6
Check the cabin air filter to ensure it is not clogged, as this can affect airflow.

Solution

1. Preparation

Tools Required: OBD-II scanner, manifold gauge set, safety glasses, gloves, socket set, ratchet, torque wrench.
Ensure the vehicle is parked on a flat surface and the engine is off before beginning work.
Disconnect the battery to avoid any electrical shorts while working on the AC system.

2. Check Refrigerant Levels

Connect the manifold gauge set to the low and high-pressure service ports of the AC system.
Start the engine and turn the AC to the maximum setting.
Observe the pressure readings on the gauge; they should be within the specified range (consult the vehicle manual for exact values).
If the pressure is low, proceed to the next step.

3. Recharge the AC System

Locate the refrigerant recharge port (typically on the low-pressure side).
Attach the refrigerant canister to the recharge hose.
Open the valve and allow refrigerant to flow into the system until the correct pressure is reached.
Monitor the gauge throughout the process to avoid overcharging.

4. Inspect and Replace Components (if necessary)

If the compressor is not engaging, check the electrical connections and fuses associated with the AC system.
If the compressor is faulty, remove it:
- Disconnect the electrical connector and remove any retaining bolts.
- Remove the old compressor and install the new one, ensuring to torque bolts to the specified values.
Replace any damaged hoses or components identified during the visual inspection.

5. Final Checks

After repairs, connect the battery and start the engine.
Turn on the AC to maximum and verify the system is blowing cold air.
Check for any leaks or unusual noises from the AC system.