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

574 words

Problem Statement

Learn how to diagnose and fix high 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 battery before working on electrical systems
•Relieve fuel pressure before disconnecting fuel lines to avoid spray

Symptoms

•Decreased fuel economy
•Check engine light illuminated
•Rough idle or engine misfires
•Unusual engine noises
•Increased emissions
•Noticeable decrease in engine performance or power

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the air filter for clogs or blockages that may affect airflow to the engine
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is operating correctly
4
Examine the fuel injectors for leaks or clogs that might disrupt fuel delivery
5
Inspect the spark plugs for wear or fouling that could lead to inefficient combustion
6
Monitor the engine's coolant temperature to ensure it is reaching the proper operating temperature

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
•Multimeter

Parts Required

•Air filter
•Fuel injectors
•Spark plugs

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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 filter for clogs or blockages that may affect airflow to the engine
3
Check fuel pressure using a fuel pressure gauge to ensure the fuel pump is operating correctly
4
Examine the fuel injectors for leaks or clogs that might disrupt fuel delivery
5
Inspect the spark plugs for wear or fouling that could lead to inefficient combustion
6
Monitor the engine's coolant temperature to ensure it is reaching the proper operating temperature

Solution

1. Preparation

Gather tools: OBD-II scanner, fuel pressure gauge, socket set, torque wrench, and multimeter.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent any electrical shorts.

2. Replace Air Filter

Locate the air filter housing and remove the cover using a socket set.
Take out the old air filter and inspect for dirt and damage.
Install the new air filter, ensuring it fits snugly.
Reattach the cover and tighten the screws to the manufacturer's specifications.

3. Clean or Replace Fuel Injectors

If using a cleaning kit, connect the fuel injector cleaner to the fuel rail.
Follow the kit's instructions to clean the injectors effectively.
If replacing, relieve fuel pressure, disconnect the fuel lines, and remove the old injectors.
Install new injectors, ensuring they are seated properly, and reconnect the fuel lines.

4. Inspect and Replace Spark Plugs

Remove the ignition coil or distributor cap to access the spark plugs.
Use a spark plug socket to remove each spark plug.
Inspect for wear or carbon build-up; replace any that are damaged.
Gap the new plugs as per manufacturer specifications and install them.

5. Test Fuel Pressure

Connect the fuel pressure gauge to the fuel rail.
Start the engine and check the pressure reading against manufacturer specifications.
If pressure is too low, consider replacing the fuel pump.