why is my Ford Explorer using so much gas lately

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

569 words

Problem Statement

Learn how to diagnose and fix fuel consumption issues 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 the battery before working on electrical systems.
•Allow the engine to cool before inspecting or working on the exhaust system.

Symptoms

•Check engine light illuminated
•Decreased fuel economy
•Rough idle or stalling
•Unusual engine noises
•Strong fuel odor
•Increased emissions (visible exhaust)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Check the air filter for clogs or restrictions that may affect airflow.
3
Inspect fuel injectors for leaks or clogging.
4
Test fuel pressure to ensure the fuel pump is functioning properly.
5
Examine the exhaust system for blockages or leaks.
6
Review tire pressure and condition, as under-inflated tires can affect fuel economy.

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
•Fuel pressure gauge
•Socket set
•Tire pressure gauge
•Fuel line removal tool

Parts Required

•Air filter
•Fuel injectors (if cleaning does not resolve the issue)
•Fuel pump (if testing indicates failure)

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 the air filter for clogs or restrictions that may affect airflow.
3
Inspect fuel injectors for leaks or clogging.
4
Test fuel pressure to ensure the fuel pump is functioning properly.
5
Examine the exhaust system for blockages or leaks.
6
Review tire pressure and condition, as under-inflated tires can affect fuel economy.

Solution

1. Preparation

Gather tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery to prevent electrical shorts.

2. Replace Air Filter

Locate the air filter housing.
Remove the screws or clips securing the housing.
Take out the old air filter and inspect the housing for debris.
Install a new air filter, ensuring it fits snugly.
Reassemble the air filter housing.

3. Clean or Replace Fuel Injectors

Remove the engine cover if necessary to access the fuel rail.
Disconnect the fuel lines with a fuel line removal tool (take precautions to catch any fuel).
Remove the fuel injectors from the fuel rail.
Clean the injectors using a professional cleaning kit or replace them if they are damaged.
Reinstall the fuel injectors and reconnect the fuel lines securely.

4. Test and Replace Fuel Pump (if necessary)

Use a fuel pressure gauge to test the fuel pressure at the rail.
If pressure is below specifications, locate the fuel pump access panel (usually under the rear seat or in the trunk).
Disconnect the battery and remove the panel.
Unscrew and remove the old fuel pump, replace it with a new one, and reconnect all electrical connectors.
Reassemble the access panel.

5. Inspect Exhaust System

Visually inspect the exhaust system for any visible damage or leaks.
Listen for unusual noises while the engine is running.
If damage is found, replace the affected sections of exhaust.

6. Tire Maintenance

Check each tire’s pressure with a tire pressure gauge.
Inflate tires to the vehicle manufacturer's recommended PSI.
Inspect tires for wear and replace if needed.