why is my Ford Explorer using too much gas lately

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

501 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. 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 starting any work.

Symptoms

•Poor fuel economy
•Check engine light illuminated
•Engine stalling or rough idling
•Increased emissions (black smoke from exhaust)
•Unusual engine noises (knocking or pinging)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Inspect air filter for dirt or clogging that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure it meets specifications.
4
Inspect fuel injectors for proper operation and signs of clogging or leaks.
5
Examine the exhaust system for blockages or damage that could affect emissions.
6
Test the ignition system components, including spark plugs and coils, for wear or failure.

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
•Fuel pressure gauge
•Torque wrench

Parts Required

•Air filter
•Fuel injectors (if cleaning/replacement is required)
•Spark plugs

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Inspect air filter for dirt or clogging that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure it meets specifications.
4
Inspect fuel injectors for proper operation and signs of clogging or leaks.
5
Examine the exhaust system for blockages or damage that could affect emissions.
6
Test the ignition system components, including spark plugs and coils, for wear or failure.

Solution

1. Preparation

Gather tools and parts needed for repair.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery to ensure safety while working.

2. Replace Air Filter

Remove the air filter housing cover using a socket set.
Take out the existing air filter and inspect it.
Install a new air filter, ensuring it is seated properly.
Reattach the air filter housing cover securely.

3. Clean or Replace Fuel Injectors

If cleaning, use a fuel injector cleaner and follow the manufacturer’s instructions.
If replacing, disconnect the fuel lines and remove the fuel rail.
Replace the old injectors with new ones and reassemble the fuel rail.
Reconnect all fittings securely and check for leaks.

4. Inspect and Replace Spark Plugs

Remove the ignition coil cover if necessary.
Disconnect the spark plug wires and remove the old spark plugs using a socket wrench.
Inspect the old plugs for wear and gap specifications.
Install new spark plugs with the manufacturer-recommended gap.
Reconnect spark plug wires and ignition coils.

5. Test Fuel Pressure

Attach a fuel pressure gauge to the fuel rail.
Turn on the ignition but do not start the engine to check for pressure.
If pressure is below specifications, check the fuel pump and filter for issues.