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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

541 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.
•Wear safety goggles and gloves when handling refrigerants.

Symptoms

•AC compressor not engaging
•Warm air blowing from vents
•Unusual noises from the AC system (e.g., hissing or clunking)
•Increased humidity inside the vehicle
•AC clutch not cycling properly
•Visible refrigerant leaks under the vehicle

Diagnostic Steps

1
Check the AC system fuse using the vehicle’s fuse box diagram.
2
Use an OBD-II scanner to check for any related diagnostic trouble codes (DTCs).
3
Inspect the AC compressor for any signs of damage or wear.
4
Check the refrigerant level using a manifold gauge set.
5
Verify that the AC clutch is engaging when the AC is turned on.
6
Inspect the evaporator and condenser for blockages or debris.

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
•Socket set
•Screwdrivers
•Refrigerant (R-134a)

Parts Required

•AC compressor (if found defective)
•AC refrigerant (R-134a)
•AC fuse (if blown)

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Diagnostic Steps

1
Check the AC system fuse using the vehicle’s fuse box diagram.
2
Use an OBD-II scanner to check for any related diagnostic trouble codes (DTCs).
3
Inspect the AC compressor for any signs of damage or wear.
4
Check the refrigerant level using a manifold gauge set.
5
Verify that the AC clutch is engaging when the AC is turned on.
6
Inspect the evaporator and condenser for blockages or debris.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and the engine is off.
Disconnect the negative battery cable to prevent electrical shock.

Tools Required:

OBD-II scanner
Manifold gauge set
Socket set
Screwdrivers
Refrigerant (R-134a)

2. Check and Replace AC Fuse

Locate the fuse box under the dashboard or engine compartment.
Remove the AC fuse and inspect for any signs of a blown fuse.
Replace with a new fuse of the same amperage if necessary.

3. Inspect AC Compressor

Visually inspect the AC compressor for any physical damage or leaks.
If damaged, disconnect the electrical connector and remove the mounting bolts.
Install a new AC compressor, ensuring all seals are properly lubricated.

4. Recharge Refrigerant

Connect the manifold gauge set to the low and high pressure ports of the AC system.
Start the engine and turn the AC to maximum cold.
Add refrigerant (R-134a) as needed until the correct pressure is reached (consult the vehicle’s specifications for exact pressures).
Monitor the system for any irregularities during charging.

5. Test and Verify AC Operation

Reconnect the negative battery cable.
Start the vehicle and turn the AC on.
Check if the AC compressor cycles and whether cold air begins to flow from the vents.
If the system functions correctly, verify there are no unusual noises or leaks.