my Ford Explorer Fifth Generation (2011-2019) AC is blowing warm air, how to fix it?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

584 words

Problem Statement

Learn how to diagnose and fix AC blowing warm air in Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures 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 safety goggles and gloves when handling refrigerants.

Symptoms

•Warm air blowing from the AC vents
•AC control panel lights functioning but no cold air
•Possible increase in engine temperature
•Strange noises from the AC compressor (if applicable)
•Refrigerant leak signs (such as oil spots)

Diagnostic Steps

1
Check the AC system's refrigerant level using a pressure gauge.
2
Inspect the AC compressor for any signs of damage or failure.
3
Examine the AC condenser for blockages or debris.
4
Inspect the cabin air filter for dirt or clogging that could affect airflow.
5
Scan the vehicle's computer for any diagnostic trouble codes (DTCs) related to the AC system.
6
Test the AC clutch engagement to ensure it is functioning.
7
Verify the operation of the blend door actuator for proper airflow direction.

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

•AC manifold gauge set
•Socket set
•Torque wrench
•Hose
•Soft brush

Parts Required

•Refrigerant (R-134a or R-1234yf, depending on the model)
•AC compressor (if needed)
•Cabin air filter (if needed)

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Diagnostic Steps

1
Check the AC system's refrigerant level using a pressure gauge.
2
Inspect the AC compressor for any signs of damage or failure.
3
Examine the AC condenser for blockages or debris.
4
Inspect the cabin air filter for dirt or clogging that could affect airflow.
5
Scan the vehicle's computer for any diagnostic trouble codes (DTCs) related to the AC system.
6
Test the AC clutch engagement to ensure it is functioning.
7
Verify the operation of the blend door actuator for proper airflow direction.

Solution

1. Preparation

Gather tools and parts needed, including refrigerant, gauges, and tools.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to ensure safety while working with electrical components.

2. Check and Refill Refrigerant

Tools Required: AC manifold gauge set, refrigerant.
Connect the low-pressure side of the gauge to the AC service port.
Check the pressure readings; if low, proceed to refill the refrigerant.
Follow the manufacturer's specifications to add the correct type and amount of refrigerant.
Disconnect the gauge set and secure the service port cap.

3. Inspect and Replace the AC Compressor (if necessary)

Tools Required: Socket set, torque wrench.
Remove any covers obstructing access to the compressor.
Disconnect the electrical connector and any hoses from the compressor.
Unbolt the compressor from its mounting brackets and remove it.
Install the new AC compressor and secure it with bolts to the manufacturer's torque specifications.

4. Inspect and Clean the AC Condenser

Tools Required: Hose, soft brush.
Inspect the condenser for debris or blockages.
Use a hose and soft brush to clean the condenser fins carefully.
Ensure there is no damage to the condenser. Replace if necessary.

5. Replace Cabin Air Filter (if clogged)

Tools Required: None (or Phillips screwdriver, depending on design).
Locate the cabin air filter compartment, usually behind the glove box.
Remove the old filter and inspect for dirt or damage.
Install a new cabin air filter according to the manufacturer’s instructions.