how do I fix my Ford Explorer Fifth Generation (2011-2019) that won't accelerate?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

4 min read

658 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 lack of acceleration in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the vehicle to cool down before working on the engine.

Symptoms

•Check engine light illuminated
•Engine stalling or hesitation during acceleration
•Unusual engine noises (e.g., knocking or grinding)
•Poor fuel economy
•Transmission slipping or harsh shifting
•Loss of power during driving

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels and ensure there is sufficient fuel in the tank.
3
Inspect the air filter for clogs or dirt that could restrict airflow.
4
Examine the throttle body for carbon buildup or obstructions.
5
Test the fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
6
Inspect the transmission fluid level and condition; look for signs of contamination or burning.

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
•Throttle body cleaner
•Socket set
•Wrench
•Fuel line disconnect tool
•Torque wrench
•Transmission fluid pump

Parts Required

•Fuel filter
•Spark plugs (if needed)
•Transmission fluid (specific to vehicle requirements)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check fuel levels and ensure there is sufficient fuel in the tank.
3
Inspect the air filter for clogs or dirt that could restrict airflow.
4
Examine the throttle body for carbon buildup or obstructions.
5
Test the fuel pressure using a fuel pressure gauge to ensure proper fuel delivery.
6
Inspect the transmission fluid level and condition; look for signs of contamination or burning.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Disconnect the battery to avoid electrical shorts.

2. Clean the Throttle Body

Tools Required: Throttle body cleaner, screwdriver, clean cloth.
Remove the air intake duct connected to the throttle body.
Spray throttle body cleaner into the throttle body while opening the throttle plate manually.
Wipe any residue with a clean cloth.
Reattach the air intake duct securely.

3. Replace the Fuel Filter

Tools Required: Socket set, wrench, fuel line disconnect tool.
Locate the fuel filter (typically along the fuel line under the vehicle).
Relieve fuel pressure by removing the fuel pump fuse and starting the engine until it stalls.
Disconnect the fuel lines from the filter using the fuel line disconnect tool.
Remove the old filter and install the new one, ensuring the flow direction is correct.
Reconnect the fuel lines and fuse, then turn the ignition to the "On" position to prime the fuel system.

4. Inspect and Replace Spark Plugs (if necessary)

Tools Required: Socket set, spark plug socket, torque wrench.
Remove the engine cover (if applicable) to access spark plugs.
Disconnect the ignition coils and remove them.
Use a spark plug socket to remove the old spark plugs.
Inspect the old plugs for wear; replace them if necessary with new plugs, ensuring the correct gap.
Reinstall ignition coils and the engine cover.

5. Transmission Fluid Change

Tools Required: Socket set, torque wrench, transmission fluid pump, new transmission fluid.
Raise the vehicle securely on jack stands and place a drain pan under the transmission.
Remove the transmission pan bolts and carefully lower the pan.
Drain old fluid and replace the filter if applicable.
Clean the pan and replace the gasket before reinstalling.
Fill the transmission with the correct type and amount of fluid as specified in the owner’s manual.