how to troubleshoot the air conditioning system on 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

584 words

Problem Statement

Learn how to troubleshoot and fix air conditioning issues in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps and repair instructions.

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.
•Ensure the vehicle is off and cool before performing repairs on the AC system.

Symptoms

•AC not blowing cold air
•Unusual noises when the AC is turned on
•AC compressor not engaging
•Presence of refrigerant leaks (oil spots or refrigerant scent)
•High or low pressure readings on the AC system
•Intermittent cooling, fluctuating temperatures

Diagnostic Steps

1
Check the AC system for any visible refrigerant leaks or oil spots.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the AC compressor for proper engagement and operation.
4
Examine the AC fuses and relays for continuity and functionality.
5
Measure the pressure in the AC system using a manifold gauge set.
6
Verify the operation of the blower motor and cabin air filter for proper airflow.

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
•UV leak detection kit
•Manifold gauge set
•Socket set
•Screwdriver set
•Torque wrench
•Vacuum

Parts Required

•Refrigerant
•AC compressor (if needed)
•Blower motor (if needed)
•Cabin air filter

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Diagnostic Steps

1
Check the AC system for any visible refrigerant leaks or oil spots.
2
Use an OBD-II scanner to check for any related error codes.
3
Inspect the AC compressor for proper engagement and operation.
4
Examine the AC fuses and relays for continuity and functionality.
5
Measure the pressure in the AC system using a manifold gauge set.
6
Verify the operation of the blower motor and cabin air filter for proper airflow.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is turned off.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Repair Leaks

Tools Required: UV light, leak detection dye
Apply UV leak detection dye to the AC system and use a UV light to locate any leaks.
If a leak is found, replace the affected component (e.g., hoses, condenser, evaporator).
Recharge the system with the appropriate refrigerant type after repairs.

3. Check and Replace AC Compressor

Tools Required: Socket set, torque wrench
Remove the drive belt from the AC compressor.
Unbolt the compressor from its mounting points and disconnect the electrical connector.
Compare the old compressor with the new one and install the new unit, ensuring all seals are replaced.
Torque the mounting bolts to the manufacturer's specifications.

4. Inspect Blower Motor and Cabin Air Filter

Tools Required: Screwdriver set, vacuum
Remove the blower motor cover and inspect the blower motor for functionality.
If the blower motor is faulty, replace it with a new unit.
Remove and replace the cabin air filter if it is clogged or dirty to ensure proper airflow.

5. Recharge the AC System

Tools Required: Manifold gauge set, refrigerant
Connect the manifold gauges to the low and high-pressure ports on the AC system.
Start the vehicle and turn on the AC to maximum setting.
Recharge the system with the correct amount of refrigerant as specified in the owner's manual.