why does my Ford Explorer Fifth Generation (2011-2019) have poor acceleration

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

475 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 poor acceleration issues in the 2011-2019 Ford Explorer. Step-by-step guide with symptoms, 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 components.
•Allow the engine to cool before inspecting the fuel system or components near the engine.

Symptoms

•Check engine light illuminated
•Engine stalling during acceleration
•Unresponsive throttle
•Rough engine idle
•Decreased fuel economy
•Unusual noise from the engine during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the throttle body for carbon buildup or obstructions.
3
Check the fuel pressure with a fuel pressure gauge to ensure it meets specifications.
4
Examine the air filter for clogs or restrictions that may affect airflow.
5
Test the ignition system components, including spark plugs and ignition coils, for wear or failure.
6
Inspect transmission fluid levels and condition, as low or dirty fluid can affect performance.

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
•Screwdriver set

Parts Required

•Fuel filter (if applicable)
•Fuel pump (if applicable)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the throttle body for carbon buildup or obstructions.
3
Check the fuel pressure with a fuel pressure gauge to ensure it meets specifications.
4
Examine the air filter for clogs or restrictions that may affect airflow.
5
Test the ignition system components, including spark plugs and ignition coils, for wear or failure.
6
Inspect transmission fluid levels and condition, as low or dirty fluid can affect performance.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the battery to ensure safety while working on the vehicle.

Tools Required:

OBD-II scanner
Fuel pressure gauge
Socket set
Torque wrench
Screwdriver set

2. Clean the Throttle Body

Remove the air intake duct connected to the throttle body.
Use throttle body cleaner and a soft cloth to clean the throttle plate and housing.
Reinstall the air intake duct securely.

3. Fuel System Inspection

Connect a fuel pressure gauge to the fuel rail.
Turn the ignition key to the "On" position (do not start the engine) and check the fuel pressure.
If the pressure is out of specification, replace the fuel filter and/or fuel pump as needed.

Parts Required:

Fuel filter (if applicable)
Fuel pump (if applicable)

4. Inspect and Replace Ignition Components

Remove the ignition coils from the spark plugs.
Inspect the spark plugs for signs of wear or damage; replace if necessary.
Reinstall the ignition coils and ensure they are seated properly.

5. Transmission Fluid Check

Locate the transmission dipstick and remove it.
Check the fluid level and condition; if low, add the appropriate transmission fluid.
If the fluid is dirty or burnt, consider a transmission fluid change.