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

how to fix my Ford F-150 AC not blowing cold air

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

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
480 words

Problem Statement

Learn how to diagnose and fix the AC not blowing cold air in Ford F-150. 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

  • •Disconnect the battery before working on electrical components.
  • •Always follow safety guidelines when handling refrigerants.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from vents
  • •Unusual noises from the AC unit
  • •AC clutch not cycling
  • •Low refrigerant levels indicated by pressure gauge readings

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Refrigerant recovery machine
  • •Socket set
  • •Torque wrench

Parts Required

  • •AC compressor (if faulty)
  • •New O-ring seals for the compressor
  • •Refrigerant

Additional Information

Affected Component
HVAC
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and components.
  • Disconnect the vehicle battery.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
2. Recover Refrigerant
  • Connect a refrigerant recovery machine to the AC service ports.
  • Recover the existing refrigerant per EPA guidelines to avoid environmental harm.
3. Check and Replace AC Compressor

  • Inspect Compressor:

    • Remove the serpentine belt using a socket set.
    • Check the compressor for signs of damage and listen for unusual noises during operation.

  • Replace Compressor (if necessary):

    • Disconnect the electrical connector from the compressor.
    • Remove the mounting bolts and carefully pull the compressor out.
    • Install the new compressor by reversing the removal steps, ensuring the mounting bolts are torqued to manufacturer specifications (typically around 15-20 ft-lbs).
4. Recharge AC System
  • Add Refrigerant:
    • Connect the refrigerant tank to the low-pressure service port.
    • Follow the manufacturer's specifications for the correct refrigerant type (usually R-134a for older models).
    • Recharge the system while monitoring the low and high-pressure gauges; ensure pressures are within specified ranges.
5. Test the AC System
  • Reconnect the battery.
  • Start the engine and set the AC to maximum cool and high fan.
  • Confirm that the compressor engages and cold air is produced.