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my Ford F-150 13th Generation (2015-2020) AC is blowing warm air how do I fix it - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/my Ford F-150 13th Generation (2015-2020) AC is blowing warm air how do I fix it

my Ford F-150 13th Generation (2015-2020) AC is blowing warm air how do I fix it

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

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

Problem Statement

Learn how to diagnose and fix the AC blowing warm air issue in Ford F-150 (2015-2020). Step-by-step guide with tools, parts, and safety tips.

Affected Component
HVAC
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical components.
  • •Wear safety goggles and gloves when handling refrigerants.

Symptoms

  • •AC system blowing warm air
  • •Unusual noises from the AC compressor
  • •AC compressor not engaging
  • •Condenser fan not operating
  • •Foul odor from the vents

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

  • •AC pressure gauge
  • •OBD-II scanner
  • •Basic socket set
  • •Multimeter
  • •Refrigerant

Parts Required

  • •Refrigerant
  • •Cabin air filter
  • •AC compressor
  • •Condenser

Additional Information

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

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Solution
1. Preparation
  • Gather tools and materials.
  • Ensure the vehicle is parked on a flat surface and the engine is off.
  • Tools Required: AC pressure gauge, OBD-II scanner, basic socket set, multimeter, refrigerant (if needed).
2. Check and Recharge Refrigerant
  • Remove the AC system service caps.
  • Connect the AC pressure gauge to the low-pressure side service port.
  • Read the pressure; if it’s low, proceed to recharge the system:
    • Attach the refrigerant can to the gauge.
    • Start the engine and turn on the AC to the maximum setting.
    • Open the valve on the refrigerant can slowly until the correct pressure is reached (refer to the vehicle manual for specifications).
  • Disconnect the gauge and replace the service caps.
3. Inspect and Replace Components
  • AC Compressor:
    • If the compressor does not engage, check the electrical connector for damage.
    • Test for power at the compressor using a multimeter; if there is no power, trace back to the relay or control module.
    • Replace the AC compressor if it is faulty.
  • Cabin Air Filter:
    • Locate the cabin air filter housing (usually under the dashboard).
    • Remove the housing cover and pull out the old filter.
    • Install a new cabin air filter.
4. Clean or Replace the Condenser
  • Locate the condenser in front of the radiator.
  • Remove any debris or dirt obstructing airflow.
  • If the condenser is damaged, it will need to be replaced:
    • Disconnect the refrigerant lines and electrical connectors.
    • Remove the mounting bolts and take out the condenser.
    • Install the new condenser and reattach the lines and connectors.