why is my Ford Explorer Fifth Generation (2011-2019) using too much gas

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

577 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix excessive fuel consumption in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, 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 components.

Symptoms

•Check engine light illuminated
•Noticeable decrease in fuel economy (miles per gallon)
•Engine stalling or rough idling
•Unusual engine noise
•Fuel odor around the vehicle
•Increased emissions or black smoke from the exhaust

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check tire pressure and condition, ensuring they are inflated to the manufacturer's specifications.
3
Inspect the air filter for clogs and replace if necessary.
4
Examine fuel injectors for proper spray pattern and leaks.
5
Test the Mass Air Flow (MAF) sensor for accurate readings.
6
Inspect the fuel system for pressure and leaks, including the fuel pump and lines.
7
Check for any vacuum leaks in hoses and gaskets.

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
•Torque wrench
•Screwdrivers
•Mass Air Flow (MAF) cleaner
•Fuel injector cleaning kit

Parts Required

•Air filter
•MAF sensor (if necessary)
•Fuel injectors (if necessary)
•Vacuum hoses (if necessary)

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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, ensuring they are inflated to the manufacturer's specifications.
3
Inspect the air filter for clogs and replace if necessary.
4
Examine fuel injectors for proper spray pattern and leaks.
5
Test the Mass Air Flow (MAF) sensor for accurate readings.
6
Inspect the fuel system for pressure and leaks, including the fuel pump and lines.
7
Check for any vacuum leaks in hoses and gaskets.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety during electrical work.

2. Replace Air Filter

Locate the air filter housing.
Remove the screws or clips securing the housing and carefully lift it off.
Replace the old air filter with a new one, ensuring it fits securely.
Reassemble the housing and reconnect any clips or screws.

3. Clean or Replace MAF Sensor

Locate the MAF sensor in the air intake system.
Disconnect the electrical connector and remove the sensor from the housing.
Clean the sensor using MAF cleaner spray; avoid touching the delicate wires with fingers.
If damaged, replace the sensor with a new unit and reconnect the electrical connector.

4. Inspect and Clean Fuel Injectors

Remove the engine cover if necessary to access the fuel rail.
Disconnect the fuel lines and electrical connectors from the injectors.
Remove the injectors from the rail.
Clean the injectors using a specialized cleaning kit or replace if damaged.
Reinstall the injectors and reconnect the fuel lines.

5. Inspect for Vacuum Leaks

Visually inspect all vacuum hoses connected to the intake manifold for cracks or disconnections.
Use a smoke machine or carburetor cleaner to detect leaks while the engine is running.
Replace any faulty hoses or gaskets found during the inspection.