how to troubleshoot a car that won't start Ford F-150 13th Generation (2015-2020)

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

526 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 a 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 battery before working on electrical systems.
•Allow engine to cool before inspecting or working on engine components.

Symptoms

•No response when turning the key or pressing the start button
•Dashboard lights illuminate but engine does not crank
•Clicking sound from the starter relay or solenoid
•Battery warning light or low voltage indicator illuminated
•Fuel pump does not activate (no audible sound)
•Security light blinking or illuminated on the dashboard

Diagnostic Steps

1
Check the battery voltage with a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion and ensure they are securely connected.
3
Test the ignition fuse and starter relay for continuity using a multimeter.
4
Attempt to start the vehicle while monitoring the voltage at the starter using a helper.
5
Verify the condition of the key fob if equipped with push-button start; replace battery if necessary.
6
Check for any diagnostic trouble codes (DTCs) using an OBD-II scanner.

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
•OBD-II scanner
•Wire brush

Parts Required

•Replacement battery (if necessary)
•Starter relay (if necessary)
•Starter motor (if necessary)

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Symptoms

•No response when turning the key or pressing the start button

•Dashboard lights illuminate but engine does not crank

•Clicking sound from the starter relay or solenoid

•Battery warning light or low voltage indicator illuminated

•Fuel pump does not activate (no audible sound)

•Security light blinking or illuminated on the dashboard

Diagnostic Steps

1
Check the battery voltage with a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion and ensure they are securely connected.
3
Test the ignition fuse and starter relay for continuity using a multimeter.
4
Attempt to start the vehicle while monitoring the voltage at the starter using a helper.
5
Verify the condition of the key fob if equipped with push-button start; replace battery if necessary.
6
Check for any diagnostic trouble codes (DTCs) using an OBD-II scanner.

Solution

1. Preparation

Gather tools and parts: multimeter, socket set, OBD-II scanner, replacement battery (if needed).
Ensure the vehicle is in park (automatic) or neutral (manual) and turn off all accessories.
Disconnect the negative battery terminal for safety.

2. Battery Inspection and Replacement

Sub-step 1: Reconnect the battery and check voltage again. If below 12.4 volts, charge or replace the battery.
Sub-step 2: If the battery is good, clean the battery terminals with a wire brush and reconnect them securely.

3. Testing and Replacing the Starter Relay

Sub-step 1: Locate the fuse box and identify the starter relay (refer to owner's manual for location).
Sub-step 2: Remove the relay and test it for continuity with a multimeter. Replace if faulty.
Sub-step 3: If the relay is good, check the wiring for any visible damage or loose connections.

4. Inspecting the Starter Motor

Sub-step 1: If the starting issue persists, ensure the starter motor connections are secure.
Sub-step 2: Test the starter motor by applying direct power from the battery; if it does not engage, replace the starter motor.

5. Reassemble and Test

Reconnect the negative battery terminal.
Attempt to start the vehicle. If it starts, ensure all components are securely reassembled.