why is my Ford Explorer using too much gas recently

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

557 words

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 performing maintenance tasks.

Symptoms

•Decreased fuel economy
•Check engine light illuminated
•Rough idling or engine stalling
•Unusual engine noises
•Strong smell of gasoline
•Increased engine temperature

Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs).
2
Check the engine air filter for clogs or dirt that may restrict airflow.
3
Inspect fuel injectors for leaks or blockages.
4
Examine tire pressure and condition, ensuring they meet manufacturer's specifications.
5
Assess fuel quality and check for water or contaminants in the fuel system.
6
Test the oxygen sensors and mass airflow (MAF) sensor for proper function.

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
•Screwdriver
•Replacement air filter
•Fuel injector cleaning kit
•O2 sensor socket
•Tire pressure gauge
•Air compressor

Parts Required

•Engine air filter
•Oxygen sensors (if needed)
•Fuel injectors (if needed)

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Diagnostic Steps

1
Scan the vehicle for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs).
2
Check the engine air filter for clogs or dirt that may restrict airflow.
3
Inspect fuel injectors for leaks or blockages.
4
Examine tire pressure and condition, ensuring they meet manufacturer's specifications.
5
Assess fuel quality and check for water or contaminants in the fuel system.
6
Test the oxygen sensors and mass airflow (MAF) sensor for proper function.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.

2. Replace Engine Air Filter

Tools Required: Screwdriver, replacement air filter.
Remove the air filter housing cover by unscrewing the screws or unclipping the fasteners.
Take out the old air filter and inspect the housing for debris. Clean if necessary.
Insert the new air filter, ensuring it fits snugly, and reattach the housing cover.

3. Inspect and Clean Fuel Injectors

Tools Required: Fuel injector cleaning kit or professional cleaning service.
Disconnect the battery to prevent electrical issues.
Remove the fuel rail (if applicable) to access the injectors.
Use the cleaning kit to flush and clean the injectors or replace them if they are faulty.

4. Check and Replace Oxygen Sensors

Tools Required: O2 sensor socket, wrench.
Disconnect the battery again for safety.
Locate the oxygen sensors (upstream and downstream) in the exhaust system.
Remove the old sensors using the O2 sensor socket and install the new sensors, tightening them to the manufacturer's specified torque.

5. Tire Pressure Adjustment and Maintenance

Tools Required: Tire pressure gauge, air compressor.
Check each tire's pressure using the gauge, comparing it to the recommended PSI listed on the driver's door jamb.
Inflate or deflate tires as necessary and inspect them for uneven wear or damage.

6. Fuel System Clean

Tools Required: Fuel system cleaner, funnel.
Add a quality fuel system cleaner to the gas tank based on product instructions.
Fill the tank with high-quality fuel to dilute contaminants.