why is my Ford Explorer using so much gas lately

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

541 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 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

•Check engine light illuminated
•Decreased miles per gallon (MPG)
•Unusual engine noise during acceleration
•Engine stalling or rough idling
•Strong smell of fuel around the vehicle
•Increased emissions from the exhaust

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air intake system for blockages or leaks in the air filter and intake ducts
3
Check fuel pressure using a fuel pressure gauge to determine if the fuel pump is functioning properly
4
Examine the fuel injectors for clogs or leaks
5
Inspect the oxygen sensors for proper operation and signs of wear
6
Review tire pressure and alignment to rule out external factors affecting 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
•Socket set
•Fuel pressure gauge
•Fuel injector cleaning kit

Parts Required

•Air filter
•Fuel pump (if necessary)
•Fuel injectors (if necessary)
•Oxygen sensors (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air intake system for blockages or leaks in the air filter and intake ducts
3
Check fuel pressure using a fuel pressure gauge to determine if the fuel pump is functioning properly
4
Examine the fuel injectors for clogs or leaks
5
Inspect the oxygen sensors for proper operation and signs of wear
6
Review tire pressure and alignment to rule out external factors affecting fuel economy

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Air Filter

Remove the air filter housing cover using a socket set.
Take out the old air filter and inspect it for dirt and blockages.
Replace with a new air filter if dirty or clogged.
Reassemble the air filter housing cover and ensure it is securely fastened.

3. Test and Replace Fuel Pump (if necessary)

Locate the fuel pump access panel or remove the fuel tank to access the pump.
Attach a fuel pressure gauge to the fuel rail to test the pressure.
If pressure is low, disconnect the fuel lines and electrical connectors, then remove the fuel pump assembly.
Replace with a new fuel pump and reassemble.

4. Clean or Replace Fuel Injectors

Use a fuel injector cleaning kit or remove the injectors for manual cleaning.
If cleaning does not improve performance, replace with new fuel injectors.
Reinstall the injectors ensuring proper seating and connection.

5. Check and Replace Oxygen Sensors

Locate the upstream and downstream oxygen sensors in the exhaust system.
Use a socket wrench to remove the old sensors.
Install new oxygen sensors and connect the wiring harness.
Reset the check engine light using the OBD-II scanner.