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

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

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

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

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford F-150 (2015-2020). 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
  • •Allow the engine to cool down before working near hot components

Symptoms

  • •AC compressor does not engage
  • •Warm air is emitted from the vents
  • •AC system makes unusual noises when activated
  • •Decreased airflow from the vents
  • •AC clutch does not engage
  • •Check AC system warning light illuminated

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

  • •Safety glasses
  • •Gloves
  • •OBD-II scanner
  • •Manifold gauge set
  • •Multimeter
  • •Refrigerant recovery machine

Parts Required

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

Additional Information

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

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Solution
1. Preparation
  • Tools Required: Safety glasses, gloves, OBD-II scanner, manifold gauge set, multimeter, refrigerant recovery machine (if necessary).
  • Ensure the vehicle is parked on a level surface and the engine is turned off. Disconnect the battery before beginning any electrical work.
2. Inspect Refrigerant Levels
  • Sub-steps:
    1. Connect the manifold gauge set to the high and low-pressure AC service ports.
    2. Start the engine and turn the AC to the maximum setting.
    3. Check the readings on the gauges:
      • Low side should typically be between 25-45 psi.
      • High side should be between 200-250 psi.
    4. If levels are low, proceed to recharge the system.
3. Recharge the AC System
  • Sub-steps:
    1. Use a refrigerant recovery machine to recover any existing refrigerant (if necessary).
    2. Connect the refrigerant canister to the low-pressure service port.
    3. Begin adding refrigerant slowly while monitoring the low-pressure gauge.
    4. Stop when the desired pressure is achieved.
    5. Disconnect the refrigerant canister.
4. Check AC Compressor Operation
  • Sub-steps:
    1. With the engine running and AC on, observe the AC compressor for engagement.
    2. Use a multimeter to check the voltage at the compressor connector. Ensure it receives power when the AC is activated.
    3. If no voltage, trace the wiring back to the AC control module for faults.
5. Inspect and Clean Condenser
  • Sub-steps:
    1. Visually inspect the AC condenser for any debris, dirt, or blockages.
    2. If dirty, clean the condenser using compressed air or a soft brush.
    3. Ensure there are no bent fins or physical damage.
6. Reassemble and Test
  • Sub-steps:
    1. Reconnect any connectors or components that were removed during inspection.
    2. Reconnect the battery.
    3. Start the engine and test the AC system for cold air.