why is my Ford Explorer using too much gas suddenly

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

510 words

Problem Statement

Discover how to diagnose and resolve sudden fuel consumption increase in Ford Explorer. Step-by-step guide with diagnostic steps 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 inspecting any components to avoid burns.

Symptoms

•Check engine light illuminated
•Rough idle when the engine is running
•Decreased acceleration and performance
•Unusual exhaust smoke or odor
•Fuel smell around the vehicle
•Increased frequency of refueling

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Check the condition and level of engine oil and transmission fluid.
3
Inspect the air filter for blockages or excessive dirt.
4
Examine fuel injectors for leaks or clogs.
5
Test fuel pressure with a fuel pressure gauge to ensure proper delivery.
6
Inspect the exhaust system for leaks or damage.

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
•Torque wrench
•Screwdrivers
•Fuel injector cleaning kit

Parts Required

•Engine air filter
•Fuel injectors (if faulty)
•O2 sensor or MAF sensor (if indicated by codes)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any fault codes.
2
Check the condition and level of engine oil and transmission fluid.
3
Inspect the air filter for blockages or excessive dirt.
4
Examine fuel injectors for leaks or clogs.
5
Test fuel pressure with a fuel pressure gauge to ensure proper delivery.
6
Inspect the exhaust system for leaks or damage.

Solution

1. Preparation

Gather tools and parts required.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery to prevent electrical issues.

2. Inspect and Replace Air Filter

Locate the air filter housing and open it.
Remove the old air filter and inspect it for dirt or damage.
Install a new air filter (ensure it meets OEM specifications).
Reassemble the air filter housing securely.

3. Clean or Replace Fuel Injectors

If fuel injectors are clogged, use a fuel injector cleaning kit or replace them if necessary.
Disconnect fuel lines safely, using appropriate tools to avoid damage.
Clean the injectors with cleaning solution or replace them with new units if they are faulty.
Reconnect fuel lines and ensure there are no leaks.

4. Address Check Engine Codes

Based on the OBD-II scan results, follow the specific repair instructions for any fault codes.
Common issues may include replacing faulty sensors (like O2 or MAF) or repairing wiring harnesses.

5. Inspect Exhaust System

Check for leaks or damages in the exhaust system, particularly around the manifold and catalytic converter.
Replace any damaged components as necessary to ensure proper exhaust flow.