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

490 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 opening the fuel system.

Symptoms

•Decreased fuel efficiency (more frequent refueling)
•Check engine light illuminated
•Engine stalling or rough idle
•Unusual exhaust smoke (black, blue, or white)
•Strong fuel odor near the vehicle
•Loss of power during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any engine-related issues.
2
Inspect air filter for clogs or dirt that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
4
Examine fuel injectors for leaks or clogs.
5
Inspect the exhaust system for any blockages or damage.
6
Evaluate tire pressure and condition, as under-inflated tires can impact fuel efficiency.

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
•Multimeter
•Tire pressure gauge

Parts Required

•Air filter
•Fuel injectors (if replacement is needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any engine-related issues.
2
Inspect air filter for clogs or dirt that could restrict airflow.
3
Check fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
4
Examine fuel injectors for leaks or clogs.
5
Inspect the exhaust system for any blockages or damage.
6
Evaluate tire pressure and condition, as under-inflated tires can impact fuel efficiency.

Solution

1. Preparation

Gather tools: OBD-II scanner, fuel pressure gauge, socket set, multimeter, and safety glasses.
Ensure the vehicle is parked on a flat surface and the engine is cool.

2. Address Check Engine Codes

Connect the OBD-II scanner to the vehicle's diagnostic port.
Retrieve and document any error codes.
Clear the codes and conduct a test drive to see if they return, indicating a persistent issue.

3. Replace Air Filter

Locate the air filter housing.
Open the housing and remove the old air filter.
Install a new air filter, ensuring it fits securely.

4. Check and Replace Fuel Injectors (if necessary)

Disconnect the fuel pump relay and crank the engine to relieve fuel pressure.
Remove the fuel rail and fuel injectors.
Inspect and clean the injectors, or replace them if they are clogged or leaking.
Reassemble the fuel rail and reconnect the fuel pump relay.

5. Inspect Exhaust System

Visually inspect the exhaust system for any signs of damage or blockages.
Repair or replace damaged components as necessary.

6. Tire Pressure Adjustment

Use a tire pressure gauge to check tire pressure.
Inflate tires to the manufacturer's recommended PSI if they are low.