Ford Explorer Fifth Generation (2011-2019) AC not blowing cold air what’s wrong

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, 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.
•Avoid exposure to refrigerant gases; use protective equipment when handling refrigerants.

Symptoms

•AC compressor not engaging
•Warm air blowing from vents
•Unusual noises from the AC system when in operation
•Visible refrigerant leaks under the vehicle
•AC system blowing air with a musty smell

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any error codes related to the AC system.
2
Check the AC system's refrigerant level using a manifold gauge set.
3
Inspect the AC compressor visually for signs of damage or wear.
4
Test the AC compressor clutch for engagement using a multimeter.
5
Examine the AC condenser for blockages or debris obstructing airflow.
6
Inspect the cabin air filter for cleanliness and replace if necessary.

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
•Safety glasses

Parts Required

•Refrigerant (R-134a)
•AC compressor (if replacement is necessary)
•O-rings and seals (if leaks are identified)

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Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any error codes related to the AC system.
2
Check the AC system's refrigerant level using a manifold gauge set.
3
Inspect the AC compressor visually for signs of damage or wear.
4
Test the AC compressor clutch for engagement using a multimeter.
5
Examine the AC condenser for blockages or debris obstructing airflow.
6
Inspect the cabin air filter for cleanliness and replace if necessary.

Solution

1. Preparation

Gather tools: OBD-II scanner, manifold gauge set, multimeter, socket set, and safety glasses.
Ensure the vehicle is parked on a flat surface and the engine is turned off.

2. Recharge Refrigerant

Connect the manifold gauge set to the low and high-pressure service ports.
Check the refrigerant level; if low, proceed to recharge.
Start the engine and turn on the AC to the maximum setting.
Add refrigerant according to manufacturer specifications, typically R-134a, until the pressure readings are within the normal range (usually 30-40 psi on the low side and 200-250 psi on the high side).
Disconnect the manifold gauge set after recharging.

3. Replace AC Compressor

Disconnect the negative battery terminal.
Remove the serpentine belt by releasing the tensioner with a socket wrench.
Disconnect electrical connectors and refrigerant lines from the AC compressor.
Unbolt the compressor from the engine mount and remove it from the vehicle.
Install the new compressor by reversing the removal steps, ensuring all connections are secure.
Reconnect the negative battery terminal.

4. Clear Any Leaks

Apply UV dye to the AC system if leaks are suspected.
Use a UV light to inspect for leaks after running the AC system for a few minutes.
Repair any identified leaks by replacing the affected components (e.g., o-rings, hoses).