how to fix the air conditioning not blowing cold in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

574 words

Problem Statement

Learn how to diagnose and fix the air conditioning not blowing cold in Ford Explorer 2011-2019. Step-by-step guide with symptoms, tools, and solutions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always wear safety goggles and gloves when working with refrigerants.
•Disconnect the battery before working on electrical components.

Symptoms

•Air conditioning blows warm air instead of cold
•AC compressor does not engage
•Unusual noises from the AC system (clicking or grinding)
•Presence of refrigerant leaks (oily residue around AC components)
•Poor airflow from the vents

Diagnostic Steps

1
Check the AC system for any error codes using an OBD-II scanner.
2
Inspect the refrigerant level using a manifold gauge set.
3
Examine the AC compressor for physical damage or signs of wear.
4
Test the AC relay and fuse to ensure they are functioning correctly.
5
Inspect the cabin air filter for clogs or blockages.
6
Examine the temperature blend door operation using a scan tool or manual control.

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
•Multimeter
•Socket set
•Vacuum pump

Parts Required

•R-134a refrigerant
•AC relay (if faulty)
•Replacement O-rings or hoses (if leaks are found)

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Diagnostic Steps

1
Check the AC system for any error codes using an OBD-II scanner.
2
Inspect the refrigerant level using a manifold gauge set.
3
Examine the AC compressor for physical damage or signs of wear.
4
Test the AC relay and fuse to ensure they are functioning correctly.
5
Inspect the cabin air filter for clogs or blockages.
6
Examine the temperature blend door operation using a scan tool or manual control.

Solution

1. Preparation

Tools Required: OBD-II scanner, manifold gauge set, multimeter, socket set, vacuum pump.
Ensure the vehicle is parked on a level surface and the engine is off before starting work.

2. Check Refrigerant Level

Connect the manifold gauge set to the low and high-pressure service ports of the AC system.
Start the engine and turn on the AC to the maximum setting.
Observe the pressure readings; compare them to the manufacturer specifications.
If the refrigerant level is low, proceed to recharge the system.

3. Recharge the AC System

Locate the correct refrigerant type (R-134a for this vehicle).
Use a vacuum pump to evacuate the AC system for at least 30 minutes to remove moisture.
Charge the system with refrigerant according to the manufacturer's specifications (typically around 1.5 - 2.0 lbs for this model).
Monitor the pressure gauges during the charging process to avoid overcharging.

4. Inspect and Replace Components (if necessary)

If the compressor is not engaging, check the AC relay.
- Swap with a similar relay from the fuse box to test.
If faulty, replace the AC relay.
Check for any visible leaks or cracks around the compressor and hoses.
If leaks are present, replace the affected components (compressor, hoses, or O-rings).

5. Verify System Operation

After recharging or replacing components, start the engine and turn on the AC.
Verify that the compressor engages and that cold air is blowing from the vents.
Check for any unusual noises that may indicate a problem with the compressor.