why does my Ford Explorer Fifth Generation (2011-2019) have a delay when I accelerate

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

522 words

Problem Statement

Learn how to diagnose and fix acceleration delay in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

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 servicing the throttle body or transmission.

Symptoms

•Delay in acceleration when pressing the gas pedal
•Engine RPMs increase without corresponding vehicle speed
•Unusual sounds during acceleration (e.g., slipping or grinding noises)
•Check engine light illuminated
•Poor fuel economy
•Transmission fluid leaking or dark in color

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the throttle body for dirt or carbon buildup.
4
Test the accelerator pedal position sensor using a multimeter.
5
Inspect for vacuum leaks in the intake system.
6
Check the engine air filter for blockages.

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
•Throttle body cleaner
•Multimeter
•Jack and jack stands

Parts Required

•Accelerator pedal position sensor
•Transmission fluid (specific to vehicle specifications)
•Transmission filter (if applicable)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any potential issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the throttle body for dirt or carbon buildup.
4
Test the accelerator pedal position sensor using a multimeter.
5
Inspect for vacuum leaks in the intake system.
6
Check the engine air filter for blockages.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Clean Throttle Body

Remove the air intake duct connected to the throttle body.
Use a throttle body cleaner to spray inside the throttle body.
Clean the throttle plate and surrounding areas with a soft cloth.
Reattach the air intake duct securely.

3. Check and Replace Accelerator Pedal Position Sensor

Locate the accelerator pedal position sensor (typically mounted on the pedal assembly).
Disconnect the electrical connector from the sensor.
Remove the sensor using a socket set, noting the orientation for installation.
Install the new sensor in the same orientation and secure it.
Reconnect the electrical connector.

4. Inspect and Replace Transmission Fluid

Raise the vehicle and secure it on jack stands.
Locate the transmission fluid pan and remove the drain plug or pan bolts.
Allow the old fluid to drain completely, then replace the filter if applicable.
Reinstall the drain plug and refill the transmission with new fluid (confirm correct type as per owner’s manual).
Start the vehicle and allow it to reach operating temperature, then check fluid levels and top off if necessary.