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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

618 words

Problem Statement

Learn how to diagnose and fix the 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 systems.
•Wear safety goggles and gloves when handling refrigerants.

Symptoms

•AC compressor not engaging
•Warm air blowing from vents
•Unusual noises from the AC system
•Increased humidity inside the vehicle
•"Check AC" warning light illuminated

Diagnostic Steps

1
Check the AC system's refrigerant level using a manifold gauge set.
2
Inspect the AC fuse and relay for continuity and proper operation.
3
Examine the AC compressor for any visible signs of damage or leaks.
4
Test the AC clutch to ensure it engages when the AC is turned on.
5
Scan the vehicle's computer for any error codes related to the AC system.
6
Inspect 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

•Manifold gauge set
•Refrigerant can
•Safety goggles
•Gloves
•Fuse puller or needle-nose pliers
•Wrench set
•Flashlight

Parts Required

•Refrigerant (R-134a)
•AC fuse (if blown)
•AC compressor (if faulty)
•Cabin air filter (if dirty)

Related Faults

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Diagnostic Steps

1
Check the AC system's refrigerant level using a manifold gauge set.
2
Inspect the AC fuse and relay for continuity and proper operation.
3
Examine the AC compressor for any visible signs of damage or leaks.
4
Test the AC clutch to ensure it engages when the AC is turned on.
5
Scan the vehicle's computer for any error codes related to the AC system.
6
Inspect the cabin air filter for clogs or blockages.

Solution

1. Preparation

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

2. Recharge the AC System

Tools Required: Manifold gauge set, refrigerant can, safety goggles, gloves.
Connect the manifold gauge set to the low and high-pressure ports of the AC system.
Check the pressure readings. If low, proceed to recharge.
Attach the refrigerant can to the low-pressure side of the gauge.
Open the valve on the refrigerant can slowly while the vehicle is running and the AC is set to max cold.
Monitor the gauge until the system reaches the recommended pressure (typically 30-40 psi on low side).

3. Replace AC Fuse/Relay (if needed)

Tools Required: Fuse puller or needle-nose pliers.
Locate the fuse box (usually under the dashboard or in the engine compartment).
Check the AC fuse and relay for any signs of damage.
If blown, replace the AC fuse with one of the same amperage.
Swap the relay with a similar one from the fuse box to test functionality.

4. Inspect and Repair AC Compressor

Tools Required: Wrench set, flashlight.
Visually inspect the AC compressor for leaks or damage.
If the compressor clutch is not engaging, check the electrical connections.
If necessary, replace the compressor with a new unit:
- Disconnect the electrical connector and refrigerant lines.
- Remove the mounting bolts and take out the old compressor.
- Install the new compressor in reverse order, ensuring to torque bolts to specifications (typically around 15-20 ft-lbs).

5. Replace Cabin Air Filter (if necessary)

Tools Required: None.
Open the glove compartment and locate the cabin air filter access cover.
Remove the cover and take out the old filter.
Install the new filter, ensuring it is oriented correctly.
Replace the access cover and close the glove compartment.