how to troubleshoot if my Ford F-150 13th Generation (2015-2020) fan is not working

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

626 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to troubleshoot and fix the cooling fan issue in Ford F-150 13th Generation (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Cooling System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems
•Allow the engine to cool before removing any components related to the cooling system

Symptoms

•Engine temperature gauge reading higher than normal
•Air conditioning performance decreased
•Check engine light illuminated
•Unusual noises from the engine bay
•Fan not operating when the engine is hot

Diagnostic Steps

1
Check for error codes using OBD-II scanner
2
Inspect fuse and relay for any signs of damage or failure
3
Manually activate the fan by applying direct power to it
4
Check the temperature sensor's resistance with a multimeter
5
Inspect wiring and connectors for damage or corrosion
6
Examine engine coolant level to ensure it is adequate

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
•Multimeter
•Basic hand tools (screwdrivers, socket set)
•Safety glasses
•Torque wrench

Parts Required

•Cooling fan (if faulty)
•Temperature sensor (if faulty)
•Fuses and relay (if blown)

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Diagnostic Steps

1
Check for error codes using OBD-II scanner
2
Inspect fuse and relay for any signs of damage or failure
3
Manually activate the fan by applying direct power to it
4
Check the temperature sensor's resistance with a multimeter
5
Inspect wiring and connectors for damage or corrosion
6
Examine engine coolant level to ensure it is adequate

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, basic hand tools (screwdrivers, socket set), and safety glasses.
Ensure the vehicle is parked on a level surface and the engine is cool before starting the repair.

2. Replace Fuse and Relay (if faulty)

Sub-steps:
1. Locate the fuse and relay for the fan in the fuse box (refer to the owner’s manual for exact location).
2. Remove the fuse using a fuse puller or needle-nose pliers and inspect it for continuity.
3. Replace with a new fuse of the same amperage if blown.
4. Remove the relay and test by swapping with another identical relay in the fuse box (if available) to see if the fan operates.

3. Replace Temperature Sensor (if faulty)

Sub-steps:
1. Disconnect the negative battery terminal.
2. Locate the temperature sensor (usually near the thermostat housing).
3. Disconnect the electrical connector from the sensor.
4. Remove the sensor using a socket wrench (note torque specifications for reinstallation).
5. Install the new sensor, applying thread sealant if necessary.
6. Reconnect the electrical connector and the negative battery terminal.

4. Replace Cooling Fan (if faulty)

Sub-steps:
1. Disconnect the negative battery terminal.
2. Remove any components obstructing access to the cooling fan (e.g., shroud, radiator hoses).
3. Disconnect the electrical connector from the fan.
4. Remove the fan assembly screws or bolts, taking note of their locations.
5. Install the new fan assembly in reverse order, ensuring all screws are tightened to manufacturer specifications.