how to fix the AC not working on 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

491 words

Problem Statement

Learn how to diagnose and fix AC issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, tools, 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 glasses and gloves when handling refrigerants.

Symptoms

•AC compressor not engaging
•Warm air blowing from vents
•Unusual noises from the AC system
•AC control panel lights not illuminating
•Condensation or water pooling under the vehicle
•Foul odors emitted from the vents

Diagnostic Steps

1
Inspect the AC system for visible leaks or damage to hoses and connections.
2
Check the refrigerant level using a manifold gauge set.
3
Scan for any error codes using an OBD-II scanner related to the AC system.
4
Verify the operation of the AC compressor by checking the electrical connections.
5
Test the AC control module for functionality and proper signals.
6
Inspect the cabin air filter for clogs or restrictions.

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
•Screwdrivers
•Torque wrench

Parts Required

•R-134a refrigerant
•Cabin air filter
•AC compressor relay (if faulty)

Related Faults

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Diagnostic Steps

1
Inspect the AC system for visible leaks or damage to hoses and connections.
2
Check the refrigerant level using a manifold gauge set.
3
Scan for any error codes using an OBD-II scanner related to the AC system.
4
Verify the operation of the AC compressor by checking the electrical connections.
5
Test the AC control module for functionality and proper signals.
6
Inspect the cabin air filter for clogs or restrictions.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to ensure safety while working on electrical components.

2. Refrigerant Recharge

Sub-steps:
1. Connect the manifold gauge set to the low and high-pressure service ports on the AC system.
2. Check the pressure readings; if low, proceed to recharge.
3. Add the appropriate refrigerant (R-134a) to the low-pressure side until the gauges indicate proper levels.
4. Monitor the system for any signs of leaks during recharging.

3. AC Compressor Inspection

Sub-steps:
1. Locate the AC compressor on the engine.
2. Inspect the electrical connectors and wiring for damage or corrosion.
3. Use a multimeter to check for voltage at the compressor connector when the AC is turned on.
4. If no voltage is present, trace back to the AC control module and inspect the wiring and fuses.

4. Replace Cabin Air Filter

Sub-steps:
1. Locate the cabin air filter housing, usually behind the glove compartment.
2. Remove the glove compartment for easier access.
3. Open the filter housing and carefully remove the old filter.
4. Install the new cabin air filter, ensuring it is oriented correctly.
5. Reassemble the glove compartment.