how to fix Ford Explorer Sixth Generation (2020-present) AC not blowing cold air

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

590 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer (2020-present). 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

•Always wear safety goggles and gloves when working with refrigerants.
•Ensure proper ventilation when handling refrigerant.
•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening any components related to the AC system.

Symptoms

•AC blows warm air instead of cold
•Unusual noises from the AC compressor
•AC compressor not engaging
•Condenser or evaporator leaks visible
•Poor airflow from the vents

Diagnostic Steps

1
Inspect the AC system for visible signs of leaks around the compressor, condenser, and hoses.
2
Use an OBD-II scanner to check for any related error codes.
3
Verify the refrigerant level using a manifold gauge set.
4
Check the AC compressor operation by observing whether it engages when the AC is turned on.
5
Inspect the cabin air filter for clogs or restrictions.
6
Test the AC control module and related electrical components for proper function.

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 canister with R-134a
•Screwdriver
•Socket set
•Torque wrench

Parts Required

•Refrigerant (R-134a)
•Cabin air filter
•AC compressor (if needed)

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Diagnostic Steps

1
Inspect the AC system for visible signs of leaks around the compressor, condenser, and hoses.
2
Use an OBD-II scanner to check for any related error codes.
3
Verify the refrigerant level using a manifold gauge set.
4
Check the AC compressor operation by observing whether it engages when the AC is turned on.
5
Inspect the cabin air filter for clogs or restrictions.
6
Test the AC control module and related electrical components for proper function.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface.
Disconnect the battery to prevent electrical shock.

2. Check and Replace Refrigerant

Sub-steps:
1. Connect the manifold gauge set to the low and high-pressure service ports.
2. Start the engine and turn the AC to maximum cold.
3. Check the pressure readings; if low, add the appropriate refrigerant (R-134a for 2020-present Explorers).
4. If adding refrigerant, ensure not to overfill; follow manufacturer specifications for pressure levels.

Tools Required:

Manifold gauge set
Refrigerant canister with R-134a

3. Inspect and Replace the Cabin Air Filter

Sub-steps:
1. Locate the cabin air filter access panel, typically under the dashboard or behind the glove box.
2. Remove the filter housing cover and take out the old filter.
3. Inspect and clean any debris from the housing.
4. Insert a new cabin air filter, ensuring it is oriented correctly.

Tools Required:

Screwdriver (if applicable)

4. Inspect and Replace the AC Compressor

Sub-steps:
1. Remove the drive belt from the AC compressor using a socket set.
2. Disconnect electrical connectors and refrigerant lines (ensure to recover refrigerant before disconnecting).
3. Remove the mounting bolts securing the AC compressor and take it out.
4. Install the new compressor by reversing the removal steps and ensuring all connections are secure.

Tools Required:

Socket set
Torque wrench (for compressor bolts; follow manufacturer specifications)

5. Refill and Test the System

Sub-steps:
1. Reconnect the battery and start the engine.
2. Turn on the AC and allow it to run for a few minutes.
3. Monitor the temperature at the vents to ensure it is blowing cold air.

Safety Warnings:

Always wear safety goggles and gloves when working with refrigerants.
Ensure proper ventilation when handling refrigerant.