what causes the check engine light to come on in my Ford F-150 13th Generation (2015-2020)

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

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

461 words

Problem Statement

Discover the causes of the check engine light in Ford F-150 (2015-2020). Follow our diagnostic steps and solutions to resolve engine issues effectively.

Affected Component

Engine

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 opening any components.

Symptoms

•Check engine light illuminated
•Engine runs rough or misfires
•Decreased fuel efficiency
•Unusual engine noises
•Increased emissions
•Stalling or hesitation during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the gas cap for proper sealing and signs of wear or damage.
3
Check engine oil level and condition.
4
Inspect spark plugs and ignition coils for wear or failure.
5
Examine air intake system for leaks or blockages.
6
Test the fuel system, including fuel pressure and injectors.

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
•Socket set
•Torque wrench
•Screwdrivers
•Multimeter

Parts Required

•Spark plugs
•Ignition coils
•Fuel filter (if needed)
•Fuel pump (if required)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Inspect the gas cap for proper sealing and signs of wear or damage.
3
Check engine oil level and condition.
4
Inspect spark plugs and ignition coils for wear or failure.
5
Examine air intake system for leaks or blockages.
6
Test the fuel system, including fuel pressure and injectors.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to ensure safety while working on electrical components.

2. Address Fault Codes

a. Identify Code: Note the diagnostic trouble codes (DTC) retrieved from the OBD-II scanner.
b. Research Codes: Look up the codes to understand the specific issues and required repairs.

3. Replace Faulty Components

a. Spark Plugs/Ignition Coils:
- Remove the engine cover (if applicable) using a socket set.
- Disconnect ignition coil connectors and remove the bolts securing the coils.
- Replace spark plugs and/or ignition coils as needed.
- Reinstall the components and reconnect connectors.
b. Fuel System:
- If fuel pressure is low, inspect the fuel filter and pump.
- Replace the fuel filter if it is clogged; for the pump, remove the fuel tank and replace it.

4. Reassemble and Check Connections

Ensure all connectors and hoses are properly reattached.
Replace any components removed during the diagnostic process.
Reconnect the battery.

5. Clear Codes and Test

Use the OBD-II scanner to clear any stored trouble codes.
Start the engine and monitor for any reoccurrence of the check engine light.