why is my Ford Explorer using too much fuel

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

511 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 the battery before working on electrical systems.
•Allow the engine to cool before opening the hood or working on components.

Symptoms

•Check engine light illuminated
•Decreased fuel economy
•Engine stalling or rough idling
•Unusual exhaust smoke (black or excessive)
•Strong fuel odor from the engine compartment
•Poor acceleration or power loss

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check the fuel pressure using a fuel pressure gauge to ensure it is within specifications.
3
Inspect the air filter for clogs or dirt that could restrict airflow.
4
Examine the fuel injectors for leaks or blockages.
5
Assess the condition of the spark plugs for wear or fouling.
6
Check for vacuum leaks in hoses and intake manifold.

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
•Screwdriver set
•Spark plug socket
•Fuel injector cleaning kit (optional)

Parts Required

•Air filter
•Fuel injectors (if needed)
•Spark plugs
•Vacuum hoses (if damaged)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check the fuel pressure using a fuel pressure gauge to ensure it is within specifications.
3
Inspect the air filter for clogs or dirt that could restrict airflow.
4
Examine the fuel injectors for leaks or blockages.
5
Assess the condition of the spark plugs for wear or fouling.
6
Check for vacuum leaks in hoses and intake manifold.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the battery to ensure safety while working on electrical components.

2. Replace Air Filter

Remove the air filter cover using a screwdriver.
Take out the old air filter and inspect the housing for debris.
Install a new air filter, ensuring it fits snugly and securely.
Reattach the air filter cover.

3. Clean or Replace Fuel Injectors

If cleaning, use a fuel injector cleaning kit; follow the manufacturer's instructions.
If replacing, disconnect the fuel lines and electrical connectors from the injectors.
Remove the retaining clips and pull out the old injectors.
Install the new injectors, ensuring they are seated properly and reattach the clips.
Reconnect the fuel lines and electrical connectors.

4. Check and Replace Spark Plugs

Remove the spark plug wires carefully, labeling them for reinstallation.
Use a spark plug socket to remove the old spark plugs.
Inspect the old plugs for wear; replace them with new plugs, ensuring the gap is set to manufacturer specifications.
Reconnect the spark plug wires.

5. Inspect for Vacuum Leaks

Visually inspect all vacuum hoses for cracks or disconnections.
Use a smoke machine or carburetor cleaner to test for leaks; fix or replace any damaged hoses.