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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

634 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold 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 systems.
•Allow the engine to cool before opening the AC system to prevent burns.

Symptoms

•AC compressor not engaging
•Warm air blowing from the vents
•Unusual noises from the AC compressor or engine bay
•AC clutch not cycling
•Decreased airflow from the vents

Diagnostic Steps

1
Check the AC system settings to ensure it is set to maximum cool and the fan is operational.
2
Inspect the AC fuse in the fuse box for any blown fuses.
3
Use an OBD-II scanner to check for any error codes related to the AC system.
4
Verify the refrigerant level using a manifold gauge set.
5
Inspect the AC compressor for signs of damage or wear.
6
Check the cabin air filter for clogs or blockages.

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
•Refrigerant
•Safety goggles
•Gloves

Parts Required

•AC fuse (if blown)
•Refrigerant
•AC compressor (if faulty)
•Cabin air filter (if clogged)

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Diagnostic Steps

1
Check the AC system settings to ensure it is set to maximum cool and the fan is operational.
2
Inspect the AC fuse in the fuse box for any blown fuses.
3
Use an OBD-II scanner to check for any error codes related to the AC system.
4
Verify the refrigerant level using a manifold gauge set.
5
Inspect the AC compressor for signs of damage or wear.
6
Check the cabin air filter for clogs or blockages.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools Required: AC manifold gauge set, socket set, refrigerant, safety goggles, gloves.
Ensure the vehicle is parked on a flat surface and the engine is off.

2. Check and Replace AC Fuse

Locate the fuse box under the dashboard or in the engine compartment.
Identify the AC fuse using the diagram on the fuse box cover.
Remove the fuse using a fuse puller or pliers.
Inspect the fuse for continuity; replace if blown with an equivalent-rated fuse.

3. Recharge Refrigerant

Connect the low-pressure side of the manifold gauge to the service port on the AC system.
Start the engine and turn on the AC to maximum cold.
Check the pressure readings; if low, proceed to recharge the system.
Attach the refrigerant canister to the manifold gauge and open the valve to add refrigerant slowly until the correct pressure is achieved as per the manufacturer's specifications.
Monitor the gauge until the desired level is reached.

4. Inspect and Replace AC Compressor (if necessary)

If the compressor is not engaging, visually inspect the wiring and connections.
If damaged, disconnect the battery and remove the serpentine belt using a wrench to relieve tension.
Unbolt the AC compressor from its mounting brackets using a socket set.
Disconnect the refrigerant lines (ensure the system is evacuated if still charged).
Install the new compressor by reversing the removal steps, ensuring all bolts are torqued to manufacturer's specifications.
Reconnect the refrigerant lines and recharge the system.

5. Replace Cabin Air Filter (if clogged)

Open the glove compartment and remove it from the dashboard.
Locate the cabin air filter access panel behind the glove compartment.
Remove the panel and take out the old filter.
Insert a new cabin air filter, ensuring the airflow direction matches the markings.
Reinstall the access panel and glove compartment.