my Ford Explorer has poor fuel economy, what can I do?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

481 words

Problem Statement

Learn how to diagnose and fix poor fuel economy in 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 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 engine idle
•Unusual fuel odor
•Increased engine noise
•Frequent engine stalling

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Check tire pressure and condition to ensure they are within manufacturer specifications.
3
Inspect the air filter for clogs or excessive dirt that could restrict airflow.
4
Examine fuel injectors for leaks or blockages.
5
Assess fuel quality and consider the last fuel source used.
6
Inspect the exhaust system for blockages 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
•Socket set
•Fuel injector cleaning kit
•Screwdrivers

Parts Required

•New air filter
•Fuel injector cleaning solution
•Replacement exhaust sections (if necessary)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Check tire pressure and condition to ensure they are within manufacturer specifications.
3
Inspect the air filter for clogs or excessive dirt that could restrict airflow.
4
Examine fuel injectors for leaks or blockages.
5
Assess fuel quality and consider the last fuel source used.
6
Inspect the exhaust system for blockages or leaks.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery to prevent electrical issues during the repair.

2. Replace Air Filter

Locate the air filter housing.
Open the housing and remove the old air filter.
Install the new air filter, ensuring a snug fit.
Close the housing and reconnect any clips.

3. Clean Fuel Injectors

Use a fuel injector cleaning kit or a professional cleaning service.
Disconnect the fuel rail from the injectors.
Follow the instructions provided with the cleaning kit to flush the injectors.
Reassemble the fuel rail and reconnect fuel lines securely.

4. Inspect and Repair Exhaust System

Check for any visible damage or rust in the exhaust pipes and muffler.
If leaks are found, replace the damaged sections of the exhaust pipe.
Tighten all connections and ensure that the exhaust system is properly mounted.

5. Tire Maintenance

Check tire pressure with a calibrated gauge and inflate to the recommended PSI.
Inspect tires for uneven wear and rotate them if necessary.
Replace any tires that are excessively worn or damaged.