my Ford F-150 13th Generation (2015-2020) check engine light is on what should I do

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

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

532 words

Problem Statement

Learn how to diagnose and fix the check engine light issue on your 2015-2020 Ford F-150. Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool down before checking fluid levels to prevent burns.

Symptoms

•Check engine light illuminated
•Possible rough idle
•Decreased fuel efficiency
•Engine stalling or misfiring
•Increased emissions
•Unusual noises coming from the engine

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify the specific issue.
2
Inspect the gas cap for damage or improper sealing which can trigger the check engine light.
3
Check fluid levels (engine oil, coolant, transmission fluid) to ensure they are within normal ranges.
4
Examine the air filter for dirt or blockage and replace if necessary.
5
Visually inspect the engine for any obvious leaks or damaged components.
6
Test the battery and charging system for proper voltage output.

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
•Screwdrivers
•Torque wrench

Parts Required

•Replacement gas cap
•Replacement air filter
•Engine oil (if low)
•Coolant (if low)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify the specific issue.
2
Inspect the gas cap for damage or improper sealing which can trigger the check engine light.
3
Check fluid levels (engine oil, coolant, transmission fluid) to ensure they are within normal ranges.
4
Examine the air filter for dirt or blockage and replace if necessary.
5
Visually inspect the engine for any obvious leaks or damaged components.
6
Test the battery and charging system for proper voltage output.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the negative battery terminal to avoid electrical shorts.

2. Retrieve Error Codes

Utilize the OBD-II scanner to retrieve and document all error codes.
Write down any codes that appear for further troubleshooting.

3. Inspect and Replace Faulty Components

Gas Cap Inspection
- Remove and inspect the gas cap for cracks or wear.
- Replace with a new gas cap if damaged.
Air Filter Inspection
- Remove the air filter housing cover using a socket set.
- Take out the air filter and inspect for dirt and blockages.
- Replace with a new air filter if necessary, ensuring it fits snugly.

4. Address Fluid Levels

Check engine oil level using the dipstick; add the manufacturer's recommended oil if low.
Check coolant levels in the reservoir; refill with the appropriate coolant type if necessary.

5. Reconnect Battery and Clear Codes

Reconnect the negative battery terminal securely.
Use the OBD-II scanner to clear the error codes and reset the check engine light.

6. Test Drive

Start the engine and allow it to idle for a few minutes.
Take the vehicle for a test drive to ensure the check engine light remains off and the engine runs smoothly.