how to fix my Ford Explorer Fifth Generation (2011-2019) when it sputters during acceleration

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

551 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 engine sputtering during acceleration in Ford Explorer (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components
•Relieve fuel system pressure before disconnecting fuel lines to prevent fuel spray

Symptoms

•Engine sputters or misfires during acceleration
•Decreased acceleration response
•Check engine light illuminated
•Rough or unstable idle
•Poor fuel economy
•Engine stalling at low speeds

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the fuel system, including checking the fuel pressure and the condition of the fuel filter
3
Examine the ignition system components, such as spark plugs and ignition coils, for wear or damage
4
Check the air intake system for blockages or leaks, including the mass air flow (MAF) sensor
5
Inspect the throttle body for carbon buildup or malfunction
6
Test the battery and charging system to ensure proper voltage and current delivery

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
•Torque wrench
•Fuel line wrenches
•Throttle body cleaner
•Soft brush or cloth

Parts Required

•Spark plugs
•Ignition coils (if damaged)
•Fuel filter

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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 fuel system, including checking the fuel pressure and the condition of the fuel filter
3
Examine the ignition system components, such as spark plugs and ignition coils, for wear or damage
4
Check the air intake system for blockages or leaks, including the mass air flow (MAF) sensor
5
Inspect the throttle body for carbon buildup or malfunction
6
Test the battery and charging system to ensure proper voltage and current delivery

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the vehicle battery to ensure safety during repairs.
Allow the engine to cool if it has been running.

2. Inspect and Replace Spark Plugs

Remove the engine cover if applicable.
Disconnect the ignition coils and unbolt them from the engine.
Use a spark plug socket to remove the spark plugs.
Inspect the spark plugs for wear and carbon buildup, replacing any that are damaged.
Install new spark plugs to the manufacturer's specifications (typically 13-15 lb-ft torque).
Reinstall the ignition coils and reconnect them.

3. Check and Replace Fuel Filter

Locate the fuel filter according to the service manual.
Relieve the fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
Disconnect the fuel lines from the filter using appropriate line wrenches.
Replace the fuel filter with a new one, ensuring proper orientation.
Reconnect the fuel lines and restore the fuel pump fuse.

4. Clean Throttle Body

Remove the air intake duct connected to the throttle body.
Use throttle body cleaner and a soft brush or cloth to clean the throttle body and plate.
Ensure the throttle plate moves freely before reassembling.
Reconnect the air intake duct securely.