how to fix Ford Explorer Fifth Generation (2011-2019) rough acceleration when pressing the gas

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

571 words

Problem Statement

Learn how to diagnose and fix rough acceleration issues in Ford Explorer (2011-2019). Step-by-step guide with diagnostic steps 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 systems.
•Allow the engine to cool before performing maintenance.

Symptoms

•Rough acceleration when pressing the gas pedal
•Engine hesitation or stalling during acceleration
•Poor fuel economy
•Check engine light illuminated
•Increased engine noise during acceleration

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for any error codes.
2
Inspect the air intake system for leaks or blockages.
3
Check fuel pressure using a fuel pressure gauge.
4
Examine spark plugs and ignition coils for wear or damage.
5
Inspect the throttle body for carbon buildup or malfunction.
6
Test the mass airflow (MAF) sensor for proper operation.

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
•Screwdriver set
•Socket set
•Torque wrench
•Multimeter
•Throttle body cleaner
•Fuel line disconnect tool

Parts Required

•Spark plugs
•Ignition coils
•Fuel filter (if applicable)
•MAF sensor (if required)

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for any error codes.
2
Inspect the air intake system for leaks or blockages.
3
Check fuel pressure using a fuel pressure gauge.
4
Examine spark plugs and ignition coils for wear or damage.
5
Inspect the throttle body for carbon buildup or malfunction.
6
Test the mass airflow (MAF) sensor for proper operation.

Solution

1. Preparation

Gather tools required for the repair.
Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Clean Throttle Body

Tools Required: Screwdriver set, throttle body cleaner, soft cloth.
Remove the air intake hose connected to the throttle body.
Spray throttle body cleaner into the throttle body and wipe with a cloth to remove carbon deposits.
Reattach the air intake hose and ensure it is secured tightly.

3. Replace Spark Plugs and Ignition Coils

Tools Required: Socket set, torque wrench.
Remove the engine cover if applicable.
Disconnect the electrical connectors from the ignition coils.
Remove the ignition coils using a socket wrench.
Replace spark plugs using a socket, ensuring to gap them according to manufacturer specifications.
Reinstall ignition coils and reconnect electrical connectors. Torque the bolts to the manufacturer's specifications (typically around 10-15 ft-lbs).

4. Replace Fuel Filter (if applicable)

Tools Required: Wrench set, safety glasses, fuel line disconnect tool.
Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
Use a fuel line disconnect tool to detach the fuel lines from the old fuel filter.
Install the new fuel filter, ensuring the flow direction matches the markings on the filter.
Reconnect the fuel lines and reinsert the fuel pump fuse.

5. Verify MAF Sensor Functionality

Tools Required: Multimeter.
Disconnect the MAF sensor electrical connector.
Use a multimeter to check the voltage output according to specifications (typically around 0.5 to 5 volts).
If out of range, replace the MAF sensor.