how to troubleshoot poor fuel economy in my Ford Explorer Sixth Generation (2020-present)

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

563 words

Problem Statement

Learn how to troubleshoot poor fuel economy in your Ford Explorer Sixth Generation. Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Check engine light illuminated
•Decreased miles per gallon (MPG)
•Rough idle or stalling
•Unusual engine noise or knocking
•Strong fuel odor
•Increased emissions from exhaust

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs).
2
Inspect tire pressure and tread condition; ensure tires are inflated to manufacturer specifications.
3
Check the air filter for clogs or dirt; replace if necessary.
4
Inspect fuel injectors for leaks or clogs; perform a cleaning if needed.
5
Evaluate the throttle body for carbon buildup; clean if necessary.
6
Test the fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly.

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
•Tire pressure gauge
•Socket set
•Fuel pressure gauge
•Cleaning supplies for throttle body
•Fuel injector cleaner

Parts Required

•Air filter
•Throttle body cleaning solution
•Fuel injector cleaner

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs).
2
Inspect tire pressure and tread condition; ensure tires are inflated to manufacturer specifications.
3
Check the air filter for clogs or dirt; replace if necessary.
4
Inspect fuel injectors for leaks or clogs; perform a cleaning if needed.
5
Evaluate the throttle body for carbon buildup; clean if necessary.
6
Test the fuel pressure using a fuel pressure gauge to ensure the fuel pump is functioning properly.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools Required: OBD-II scanner, tire pressure gauge, socket set, fuel pressure gauge, cleaning supplies for throttle body, and fuel injector cleaner.
Parts Required: Air filter (if replacement is needed), throttle body cleaning solution, fuel injector cleaner.
Disconnect the battery before starting any electrical work.

2. Address Diagnostic Trouble Codes

If any DTCs were identified, research the specific codes and address the underlying issues. This may include replacing faulty sensors or components.

3. Tire Maintenance

Check and adjust tire pressure to the manufacturer's specifications.
Inspect tires for uneven wear; rotate or replace if necessary.

4. Air Filter Replacement

Remove the air filter housing cover using a socket set.
Replace the air filter with a new one.
Reassemble the air filter housing cover securely.

5. Fuel Injector Cleaning

Add a fuel injector cleaning solution to the fuel tank as per the manufacturer’s instructions.
Alternatively, remove fuel injectors and clean them using an ultrasonic cleaner if heavily clogged.

6. Throttle Body Cleaning

Remove the air intake duct to access the throttle body.
Spray throttle body cleaner into the throttle body and wipe with a clean cloth, ensuring to clean the throttle plate thoroughly.
Reassemble the intake duct securely.

7. Fuel Pressure Test

Connect the fuel pressure gauge to the fuel rail.
Start the engine and check the pressure; it should match manufacturer specifications.
If pressure is low, consider replacing the fuel pump.