my Ford Explorer rear air conditioning isn’t blowing cold air, what should I check?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

483 words

Problem Statement

Learn how to diagnose and fix rear AC not blowing cold air in Ford Explorer. Step-by-step guide with diagnostic procedures 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.
•Handle refrigerant with care and follow appropriate safety protocols.

Symptoms

•Rear air conditioning is blowing warm air
•Front air conditioning functioning normally
•Unusual noises from the rear AC unit
•Condensation around the rear AC vents
•Foul odor when the rear AC is turned on

Diagnostic Steps

1
Inspect the rear AC control settings to ensure it is set to the coldest setting.
2
Check for any visible leaks in the rear AC lines or components.
3
Verify the refrigerant level using a refrigerant gauge.
4
Scan for error codes using an OBD-II scanner to identify any AC-related faults.
5
Inspect the rear AC blower motor for proper operation.

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
•Refrigerant gauge
•Socket set
•Screwdriver set

Parts Required

•Refrigerant canister
•Replacement blower motor (if necessary)
•Replacement compressor, condenser, or evaporator (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the rear AC control settings to ensure it is set to the coldest setting.
2
Check for any visible leaks in the rear AC lines or components.
3
Verify the refrigerant level using a refrigerant gauge.
4
Scan for error codes using an OBD-II scanner to identify any AC-related faults.
5
Inspect the rear AC blower motor for proper operation.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and ensure the engine is off.
Disconnect the battery to prevent any electrical short circuits.

2. Check Refrigerant Level

Use a refrigerant gauge to connect to the service port of the rear AC system.
Check the pressure readings against the manufacturer specifications.
If low, proceed to recharge refrigerant.
- Tools Required: Refrigerant gauge, refrigerant canister.
- Safety Warning: Ensure the refrigerant is handled according to manufacturer guidelines; avoid inhalation.

3. Inspect AC Components

Visually inspect the rear AC compressor, condenser, and evaporator for signs of damage or leaks.
If any components are damaged, replace them.
- Parts Required: Replacement compressor, condenser, or evaporator (if needed).
- Tools Required: Socket set, wrenches.

4. Test Rear AC Blower Motor

Reconnect the battery and turn on the rear AC.
Listen for any unusual noises which may indicate a failing blower motor.
If the blower motor is faulty, replace it.
- Parts Required: Replacement blower motor.
- Tools Required: Screwdriver set.

5. Reassemble and Test

Reassemble any components that were removed during inspection and repair.
Ensure all connections are secure.
Recharge the system if refrigerant was added.