why does my Ford Explorer Sixth Generation (2020-present) check engine light stay on

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

519 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ford Explorer Sixth Generation (2020-present). Step-by-step guide with diagnostic procedures.

Affected Component

Engine

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before opening the hood or working on any components.

Symptoms

•Check engine light illuminated
•Decreased fuel efficiency
•Engine runs rough or misfires
•Unusual smells from exhaust
•Increased emissions
•Difficulty in starting the engine

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify the specific trouble codes.
2
Inspect the gas cap for tightness or damage, as a loose cap can trigger the check engine light.
3
Check the engine oil level and condition; low or dirty oil can affect engine performance.
4
Examine the air filter for clogs or signs of wear that could affect air intake.
5
Inspect the exhaust system for leaks or damage that could lead to increased emissions.
6
Review recent maintenance records to determine if any recent changes could be related to the check engine light.

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
•Screwdriver set
•Oil filter wrench
•Torque wrench

Parts Required

•New air filter
•Engine oil (per manufacturer specifications)
•Oil filter (if necessary)
•Replacement gas cap (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify the specific trouble codes.
2
Inspect the gas cap for tightness or damage, as a loose cap can trigger the check engine light.
3
Check the engine oil level and condition; low or dirty oil can affect engine performance.
4
Examine the air filter for clogs or signs of wear that could affect air intake.
5
Inspect the exhaust system for leaks or damage that could lead to increased emissions.
6
Review recent maintenance records to determine if any recent changes could be related to the check engine light.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery to ensure safety while working on the vehicle.
Allow the engine to cool completely before beginning work.

2. Address Fault Codes

Retrieve and note the trouble codes from the OBD-II scanner.
Research the codes to understand the underlying issues.

3. Inspect and Replace Components

Gas Cap:
- Inspect for cracks or wear.
- Replace if damaged.
Air Filter:
- Remove the air filter housing.
- Replace the air filter if it is dirty or clogged.
Oil Check:
- Remove the oil dipstick, check level and condition.
- Change the oil and filter if necessary.

4. Exhaust System Inspection

Visually inspect the exhaust system for any noticeable leaks or damage.
Use a smoke machine to detect hidden leaks if necessary.
Repair or replace damaged components as needed.

5. Clear Error Codes

Reconnect the battery.
Use the OBD-II scanner to clear any stored trouble codes.
Test drive the vehicle to see if the check engine light reappears.