why is my Ford Explorer Fifth Generation (2011-2019) using too much gas lately

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

478 words

Problem Statement

Learn how to diagnose and fix poor fuel economy issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

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 engine to cool before performing any inspections or repairs

Symptoms

•Check engine light illuminated
•Decreased fuel efficiency
•Rough idle or engine misfires
•Unusual engine noises
•Increased emissions or exhaust smoke

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Check the fuel pressure with a fuel pressure gauge to ensure it is within manufacturer specifications
3
Inspect the air filter for clogs or restrictions; replace if necessary
4
Examine the spark plugs for wear or fouling and replace if needed
5
Inspect the fuel injectors for proper operation and signs of leaks
6
Verify tire pressure and condition; ensure they are inflated and in good condition

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
•Tire pressure gauge
•Ignition coil puller

Parts Required

•Air filter
•Spark plugs
•Fuel injectors

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Check the fuel pressure with a fuel pressure gauge to ensure it is within manufacturer specifications
3
Inspect the air filter for clogs or restrictions; replace if necessary
4
Examine the spark plugs for wear or fouling and replace if needed
5
Inspect the fuel injectors for proper operation and signs of leaks
6
Verify tire pressure and condition; ensure they are inflated and in good condition

Solution

1. Preparation

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

2. Replace Air Filter

Open the hood and locate the air filter housing.
Release the clips or screws holding the housing in place.
Remove the old air filter and inspect the housing for debris.
Install the new air filter, ensuring it fits snugly.
Reassemble the air filter housing and secure it with clips or screws.

3. Replace Spark Plugs

Disconnect the negative battery terminal to prevent electrical shock.
Remove the ignition coil or spark plug wires from the spark plugs.
Use a socket wrench to remove the old spark plugs.
Inspect the old spark plugs for wear or fouling.
Install new spark plugs, ensuring to use the correct gap specification (typically 0.044 inches for many models).
Reconnect the ignition coils or spark plug wires.

4. Clean or Replace Fuel Injectors

If cleaning, use a fuel injector cleaning kit and follow manufacturer instructions; otherwise, proceed to replace.
Relieve the fuel system pressure using the fuel pressure gauge.
Disconnect the fuel lines from the fuel rail and remove the fuel injectors.
Install new fuel injectors or clean existing ones thoroughly.
Reassemble the fuel rail and reconnect fuel lines.

5. Check and Inflate Tires

Use a tire pressure gauge to check the pressure of each tire.
Inflate tires to the recommended PSI listed on the door jamb sticker.
Inspect tires for uneven wear or damage and consider rotation or replacement if necessary.

Tools Required:

OBD-II scanner
Fuel pressure gauge
Socket set
Torque wrench
Tire pressure gauge
Ignition coil puller (if needed)

Parts Required:

Air filter
Spark plugs
Fuel injectors (if replacement is necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow engine to cool before performing any inspections or repairs.