my Ford Explorer AC stops blowing cold air what could be the issue

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

531 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer. 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 the electrical systems.
•Wear protective gloves and goggles when handling refrigerants.

Symptoms

•AC system blowing warm air
•AC compressor not engaging
•Unusual noises from the AC system
•Increased humidity inside the vehicle
•AC system cycles on and off frequently

Diagnostic Steps

1
Check the refrigerant level using a manifold gauge set.
2
Inspect the AC compressor for signs of damage or wear.
3
Verify the electrical connections to the AC compressor.
4
Test the AC system for any error codes using an OBD-II scanner.
5
Check the cabin air filter for clogs or restrictions.
6
Inspect the AC condenser for debris 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

•Manifold gauge set
•Socket set
•Screwdrivers
•Torque wrench

Parts Required

•AC compressor (if defective)
•Cabin air filter

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Diagnostic Steps

1
Check the refrigerant level using a manifold gauge set.
2
Inspect the AC compressor for signs of damage or wear.
3
Verify the electrical connections to the AC compressor.
4
Test the AC system for any error codes using an OBD-II scanner.
5
Check the cabin air filter for clogs or restrictions.
6
Inspect the AC condenser for debris or blockages.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is parked on a level surface.
Disconnect the battery to ensure safety.

2. Recharge the AC System

Connect Manifold Gauges
- Attach the low and high side gauges to the AC service ports.
- Ensure the gauges are secure and leak-free.
Check and Add Refrigerant
- Start the engine and turn on the AC to the maximum setting.
- Monitor the gauges; if low, add the correct type of refrigerant (R-134a or R-1234yf depending on the model year).
- Add refrigerant until the system reaches manufacturer-specified pressure.

3. Inspect and Replace AC Compressor (if necessary)

Remove the AC Compressor
- Disconnect the electrical connector from the compressor.
- Remove the serpentine belt from the compressor pulley.
- Unbolt the compressor from its mounting bracket and remove it from the engine.
Install the New AC Compressor
- Position the new compressor in place and secure it with bolts to the mounting bracket.
- Reattach the serpentine belt and ensure proper alignment.
- Connect the electrical connector to the new compressor.

4. Clean or Replace Cabin Air Filter

Locate the Cabin Air Filter
- Access the cabin air filter compartment, usually located behind the glove box.
Remove and Inspect the Filter
- Remove the old filter and check for clogs; clean or replace it with a new filter as necessary.

5. Finalize and Test System

Reconnect Battery
- Reconnect the battery terminals securely.
Test the AC System
- Start the vehicle and run the AC system.
- Monitor temperature and performance to ensure cold air is being delivered.