why does my Ford Explorer Sixth Generation (2020-present) get poor gas mileage

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

505 words

Problem Statement

Learn how to diagnose and fix poor gas mileage in the 2020-present Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting the air intake or exhaust systems.

Symptoms

•Check engine light illuminated
•Noticeable decrease in fuel efficiency
•Engine stalling or hesitating during acceleration
•Unusual engine noises (knocking or pinging)
•Fuel odor in the cabin
•Increased frequency of refueling

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check tire pressure and condition; ensure they are within manufacturer specifications.
3
Inspect the air filter for clogs and replace if necessary.
4
Examine the fuel system for leaks or blockages, including fuel injectors.
5
Test the throttle position sensor (TPS) and mass airflow sensor (MAF) for proper functionality.
6
Perform a visual inspection of the exhaust system for any restrictions or leaks.

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
•Multimeter
•Socket set
•Fuel injector cleaner kit

Parts Required

•Air filter
•Throttle position sensor (if needed)
•Fuel injectors (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check tire pressure and condition; ensure they are within manufacturer specifications.
3
Inspect the air filter for clogs and replace if necessary.
4
Examine the fuel system for leaks or blockages, including fuel injectors.
5
Test the throttle position sensor (TPS) and mass airflow sensor (MAF) for proper functionality.
6
Perform a visual inspection of the exhaust system for any restrictions or leaks.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the battery to ensure safety.

2. Replace Air Filter

Locate the air filter housing.
Remove the screws or clips securing the housing.
Take out the old air filter and clean the housing.
Install a new air filter and secure the housing.

3. Inspect and Clean Fuel Injectors

Remove the fuel injector rail from the intake manifold.
Use a fuel injector cleaner kit to clean each injector.
Reinstall the injector rail, ensuring all seals are intact.

4. Test and Replace Throttle Position Sensor (if necessary)

Disconnect the electrical connector from the throttle position sensor.
Use a multimeter to test the sensor's resistance and ensure it matches manufacturer specifications.
If out of range, replace with a new throttle position sensor.

5. Check and Adjust Tire Pressure

Use a tire pressure gauge to check each tire's pressure.
Inflate tires to the recommended PSI as stated on the driver's door jamb.

6. Evaluate Engine Timing and Fuel Mixture

Check the ignition timing using a timing light and adjust as necessary.
If the fuel mixture is too rich or lean, adjust the fuel pressure regulator or replace the O2 sensors.