my Ford F-150 13th Generation (2015-2020) won't turn over what should I check

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

559 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 diagnose and fix the no-start condition in Ford F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before working on any components near the engine.

Symptoms

•Engine does not crank when the ignition key is turned
•Clicking noise from the starter or relay
•Dashboard lights dim or flicker when the key is turned
•No sounds or lights when the key is turned (complete electrical failure)
•Possible check engine light illuminated prior to the issue

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion, looseness, or damage.
3
Test the ignition switch for functionality using an OBD-II scanner to check for fault codes.
4
Verify the condition of the starter motor by checking for voltage at the starter terminal when the key is turned.
5
Inspect the fuse related to the starter system for any blown fuses.
6
Check the wiring connections between the battery, starter, and ignition switch for any signs of damage or disconnection.

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

•Multimeter
•Socket set
•Wrench set
•Wire brush

Parts Required

•Battery (if faulty)
•Starter motor (if defective)

Related Faults

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Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion, looseness, or damage.
3
Test the ignition switch for functionality using an OBD-II scanner to check for fault codes.
4
Verify the condition of the starter motor by checking for voltage at the starter terminal when the key is turned.
5
Inspect the fuse related to the starter system for any blown fuses.
6
Check the wiring connections between the battery, starter, and ignition switch for any signs of damage or disconnection.

Solution

1. Preparation

Gather necessary tools: multimeter, socket set, wrench set, and wire brush.
Ensure the vehicle is in park (or neutral) and the parking brake is engaged.
Disconnect the negative terminal of the battery to prevent electrical shock.

2. Battery Inspection

Remove the battery terminals (negative first, then positive).
Clean the battery terminals and cable ends with a wire brush to remove corrosion.
Reconnect the battery terminals (positive first, then negative).
Test the battery voltage again; if it reads below 12.4 volts, consider charging or replacing the battery.

3. Starter Motor Removal

If the battery is fine, locate the starter motor under the vehicle.
Disconnect the electrical connector from the starter motor.
Remove the bolts securing the starter motor to the engine block using the socket set.
Carefully remove the starter motor from its mounting location.

4. Starter Testing and Replacement

Test the removed starter motor by applying power directly to it with jumper cables to see if it engages.
If the starter does not engage, replace it with a new unit.
If it engages, inspect the wiring and connections leading to the starter for continuity and integrity.

5. Reinstallation

Reinstall the starter motor by reversing the removal process, ensuring all bolts are tightened to the manufacturer’s torque specifications.
Reconnect the electrical connector to the starter motor.

6. Final Checks

Reconnect the battery terminals (positive first, then negative).
Start the vehicle to ensure it cranks and runs correctly.