Ford F-150 13th Generation (2015-2020) check engine light on what does it mean

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

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

498 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ford F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the engine to cool before opening any parts to prevent burns.

Symptoms

•Check engine light illuminated
•Rough idle or engine misfires
•Decreased fuel efficiency
•Unusual engine noises
•Failure to accelerate smoothly
•Increased exhaust emissions

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the gas cap for looseness or damage, as a faulty gas cap can trigger the CEL.
3
Check the engine oil level and condition, as low oil can affect engine performance.
4
Examine the air filter for blockages or excessive dirt that could affect airflow.
5
Inspect the ignition system components (spark plugs, coils) for wear or failure.
6
Check for vacuum leaks in hoses and gaskets that could cause engine performance issues.

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
•Smoke machine (optional)

Parts Required

•New gas cap (if necessary)
•Spark plugs (if necessary)
•Ignition coils (if necessary)
•Vacuum hoses and gaskets (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific trouble codes.
2
Inspect the gas cap for looseness or damage, as a faulty gas cap can trigger the CEL.
3
Check the engine oil level and condition, as low oil can affect engine performance.
4
Examine the air filter for blockages or excessive dirt that could affect airflow.
5
Inspect the ignition system components (spark plugs, coils) for wear or failure.
6
Check for vacuum leaks in hoses and gaskets that could cause engine performance issues.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to prevent any electrical shorts.
Safety glasses and gloves should be worn for protection.

2. Retrieve and Analyze Codes

Use the OBD-II scanner to read the trouble codes.
Document the codes and research their meanings to determine the affected systems.

3. Address Identified Issues

A. Gas Cap Replacement

If the gas cap is faulty:
1. Remove the damaged gas cap.
2. Install a new gas cap that matches the OEM specifications.

B. Ignition System Repair

If codes indicate misfires:
1. Remove the engine cover (if applicable) using a socket set.
2. Replace faulty spark plugs with new ones (torque to manufacturer's specifications).
3. Replace ignition coils if necessary.

C. Vacuum Leak Repair

For vacuum leaks:
1. Inspect hoses and gaskets visually.
2. Replace any damaged hoses or gaskets.
3. Use a smoke machine to find hard-to-detect leaks if needed.

4. Clear Codes and Reconnect Battery

After repairs, reconnect the battery.
Use the OBD-II scanner to clear the trouble codes from the system.