how to fix my Ford F-150 13th Generation (2015-2020) air conditioning not blowing cold air

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

571 words

Problem Statement

Learn how to diagnose and fix the air conditioning not blowing cold air in Ford F-150 (2015-2020). Step-by-step guide with symptoms and solutions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Properly recover refrigerant before disconnecting any A/C components.

Symptoms

•Air conditioning blows warm air
•A/C compressor not engaging
•Unusual noises from the A/C system (clicking or hissing)
•A/C system cycles on and off frequently
•Poor airflow from vents

Diagnostic Steps

1
Check A/C control settings to ensure the system is set to 'Max A/C' or 'A/C On.'
2
Use an OBD-II scanner to check for any related trouble codes.
3
Inspect the A/C compressor visually for any signs of damage or leaks.
4
Check refrigerant levels using a manifold gauge set.
5
Test the A/C relay and fuse for continuity.
6
Inspect for any blockages in the A/C condenser or cabin air filter.

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
•Wrench set
•Socket set
•Torque wrench

Parts Required

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

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Diagnostic Steps

1
Check A/C control settings to ensure the system is set to 'Max A/C' or 'A/C On.'
2
Use an OBD-II scanner to check for any related trouble codes.
3
Inspect the A/C compressor visually for any signs of damage or leaks.
4
Check refrigerant levels using a manifold gauge set.
5
Test the A/C relay and fuse for continuity.
6
Inspect for any blockages in the A/C condenser or cabin air filter.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface, and the engine is off.
Disconnect the battery to avoid any electrical issues.

2. Recharge Refrigerant

Tools Required: Manifold gauge set, A/C refrigerant.
Locate the low-pressure service port (usually on the larger A/C line).
Connect the low side fitting of the manifold gauge to the low-pressure port.
Start the engine and turn on the A/C to the maximum setting.
Check the pressure readings on the gauge. If low, proceed to add refrigerant until the proper level is reached (consult the owner's manual for specific refrigerant type and capacity).
Remove the gauge set and recap the service port.

3. Replace A/C Compressor (if necessary)

Tools Required: Wrench set, socket set, torque wrench, A/C compressor oil.
Remove the serpentine belt by using a wrench on the tensioner pulley.
Disconnect the electrical connector from the A/C compressor.
Remove the refrigerant lines connected to the compressor (ensure all refrigerant is properly recovered).
Unbolt the A/C compressor from its mounting (note the torque specifications for reinstallation).
Install the new A/C compressor and torque bolts to specification.
Reconnect the refrigerant lines and electrical connector.

4. Check and Replace Cabin Air Filter (if necessary)

Tools Required: None.
Locate the cabin air filter access panel (usually behind the glove box).
Remove the panel and take out the old cabin air filter.
Inspect the filter for dirt and debris; replace it with a new filter.