why is my Ford Explorer's engine light on after changing the oil

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

563 words

Problem Statement

Learn why the check engine light is on after an oil change in your Ford Explorer. Follow our diagnostic steps and solutions to resolve the issue.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks
•Allow the engine to cool completely before inspecting oil components

Symptoms

•Check engine light illuminated
•Oil pressure warning light may also be on
•Possible engine noise or ticking
•Decreased engine performance
•Oil leaks detected under the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific diagnostic trouble codes (DTCs)
2
Check the engine oil level to ensure it is at the correct level and verify the oil type used
3
Inspect the oil filter for proper installation and any signs of leaks or damage
4
Examine the oil drain plug for tightness and check for leaks around it
5
Inspect the air intake system for any disconnections or loose hoses that may have been disturbed during the oil change
6
Check the electrical connections to the engine sensors that could have been inadvertently disconnected or damaged during the oil change

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
•Oil filter wrench
•Socket set
•Torque wrench
•Screwdriver set

Parts Required

•Engine oil (specific to Ford Explorer)
•Oil filter (appropriate for the model)
•Oil drain plug washer (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific diagnostic trouble codes (DTCs)
2
Check the engine oil level to ensure it is at the correct level and verify the oil type used
3
Inspect the oil filter for proper installation and any signs of leaks or damage
4
Examine the oil drain plug for tightness and check for leaks around it
5
Inspect the air intake system for any disconnections or loose hoses that may have been disturbed during the oil change
6
Check the electrical connections to the engine sensors that could have been inadvertently disconnected or damaged during the oil change

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to avoid any electrical shorts while working.

2. Check Engine Light Codes

Use an OBD-II scanner to retrieve the error codes.
Document any codes that appear for further analysis.

3. Verify Oil Level and Quality

Remove the dipstick, wipe it clean, and reinsert it.
Check the oil level; add oil if necessary to reach the correct level.
Confirm that the oil type used matches the manufacturer’s specifications.

4. Inspect Oil Filter

Locate the oil filter and ensure it is properly tightened.
Replace the oil filter if it is damaged or not seated correctly.
Use an oil filter wrench if needed for removal and installation.

5. Check Drain Plug and Hoses

Inspect the oil drain plug for tightness; tighten to the manufacturer’s torque specifications (typically around 20-25 ft-lbs).
Look for any signs of oil leaks around the drain plug and oil filter area.
Inspect any hoses connected to the engine for disconnections or damage.

6. Reconnect Battery and Clear Codes

Reconnect the battery terminals.
Clear the error codes using the OBD-II scanner and turn the ignition on without starting the engine to check for the check engine light.