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

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

547 words

Problem Statement

Learn how to diagnose and fix the AC not blowing cold air in your Ford F-150 (2015-2020). Step-by-step guide with tools and procedures included.

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

•Warm air blowing from the AC vents
•AC compressor not engaging
•Strange noises from the AC system (e.g., clicking or grinding)
•Accumulation of moisture around the AC components
•Unusual odor from the vents

Diagnostic Steps

1
Check the refrigerant level using a gauge set to determine if it is low.
2
Inspect the AC compressor for any visible damage or leaks.
3
Use an OBD-II scanner to check for any related error codes.
4
Verify that the AC fuse and relay are functioning properly.
5
Examine the condition of the AC condenser for blockages or damage.
6
Test the AC clutch operation to ensure it engages when the AC is turned on.

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

•Refrigerant gauge set
•Refrigerant canister
•Socket set
•Wrench set
•Multimeter
•Vacuum pump

Parts Required

•Refrigerant (R-134a)
•AC compressor (if needed)
•AC condenser (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the refrigerant level using a gauge set to determine if it is low.
2
Inspect the AC compressor for any visible damage or leaks.
3
Use an OBD-II scanner to check for any related error codes.
4
Verify that the AC fuse and relay are functioning properly.
5
Examine the condition of the AC condenser for blockages or damage.
6
Test the AC clutch operation to ensure it engages when the AC is turned on.

Solution

1. Preparation

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

2. Check and Recharge Refrigerant

Tools Required: Refrigerant gauge set, refrigerant canister
Connect the gauge to the low-pressure service port.
Check the reading; if low, add refrigerant according to the manufacturer's specifications (usually R-134a).
Monitor the pressure while adding refrigerant to not overcharge the system.

3. Inspect and Replace AC Compressor (if necessary)

Tools Required: Socket set, wrench set, AC manifold gauge, vacuum pump
Remove the serpentine belt by loosening the tensioner.
Disconnect the electrical connector from the AC compressor.
Remove the mounting bolts of the compressor and carefully take it out.
Install the new compressor, ensuring all seals and gaskets are replaced.
Reconnect the electrical connector and secure the compressor with bolts.

4. Check AC Clutch Operation

Tools Required: Multimeter
Locate the AC clutch connector; use a multimeter to check for voltage when the AC is turned on.
If no voltage is present, trace the wiring back to the relay and fuse.
Replace the AC clutch if it is not engaging when voltage is supplied.

5. Inspect AC Condenser

Tools Required: Visual inspection only
Check the condenser for dirt, debris, or physical damage.
Clean any debris from the condenser fins using compressed air or a soft brush.
If damaged, replace the condenser with a new one.