why does my Ford Explorer Fifth Generation (2011-2019) air conditioning blow hot air

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

585 words

Problem Statement

Learn how to diagnose and fix the air conditioning blowing hot air in Ford Explorer 2011-2019. 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.
•Allow the engine to cool before servicing any components to avoid burns.

Symptoms

•Air conditioning system does not cool the air
•A/C compressor does not engage
•Unusual noises from A/C components
•A/C system cycles on and off frequently
•Foul odors from the air conditioning vents

Diagnostic Steps

1
Check the A/C system's refrigerant level using a gauge to determine if it is low.
2
Inspect the A/C compressor for signs of damage or failure.
3
Examine the A/C fuses and relays for continuity and proper function.
4
Use an OBD-II scanner to check for any related error codes.
5
Inspect the cabin air filter for clogs or obstructions.
6
Verify the operation of the A/C control module and climate control settings.

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

•A/C refrigerant can
•Manifold gauge set
•Socket set
•Wrench set
•Multimeter

Parts Required

•A/C compressor (if needed)
•A/C fuses/relays (if needed)
•Cabin air filter

Related Faults

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Diagnostic Steps

1
Check the A/C system's refrigerant level using a gauge to determine if it is low.
2
Inspect the A/C compressor for signs of damage or failure.
3
Examine the A/C fuses and relays for continuity and proper function.
4
Use an OBD-II scanner to check for any related error codes.
5
Inspect the cabin air filter for clogs or obstructions.
6
Verify the operation of the A/C control module and climate control settings.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface with the engine off.
Disconnect the battery to avoid any electrical issues while working.

2. Recharge Refrigerant

Tools Required: A/C refrigerant can, manifold gauge set
Sub-steps:
1. Connect the low-pressure port of the A/C system to the manifold gauge.
2. Check the pressure readings and compare them with manufacturer specifications.
3. If low, add refrigerant according to the manufacturer's instructions.
4. Monitor the pressure until it reaches the appropriate level.

3. Inspect and Replace A/C Compressor (if necessary)

Tools Required: Socket set, wrench set
Sub-steps:
1. Remove the drive belt from the A/C compressor.
2. Disconnect the electrical connector from the compressor.
3. Remove the mounting bolts securing the compressor to the engine.
4. Replace with a new A/C compressor, ensuring proper alignment.
5. Reconnect the electrical connector and reattach the drive belt.

4. Check and Replace Fuses/Relays

Tools Required: Multimeter
Sub-steps:
1. Locate the fuse panel and find the A/C system fuse and relay.
2. Use a multimeter to test for continuity.
3. Replace any blown fuses or faulty relays with new ones.

5. Replace Cabin Air Filter

Tools Required: None required
Sub-steps:
1. Locate the cabin air filter access panel, typically found behind the glove box.
2. Remove the panel to access the cabin air filter.
3. Take out the old filter and install the new one, ensuring proper orientation.
4. Reinstall the access panel securely.