my Ford Explorer Fifth Generation (2011-2019) revs up but won't accelerate what's wrong

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

480 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 transmission slipping issues 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 working on the transmission.

Symptoms

•Engine revs without corresponding acceleration
•Possible slipping of the transmission
•Check engine light illuminated
•Unusual noises from the engine or transmission
•Delay in acceleration response when pressing the gas pedal

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check transmission fluid level and condition; look for signs of contamination or low levels.
3
Inspect the throttle body for carbon buildup or malfunction.
4
Test the accelerator pedal position sensor for proper voltage output.
5
Examine the transmission for any visible leaks or damage.
6
Verify that the air intake system is not obstructed or damaged.

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
•Multimeter
•Socket set
•Throttle body cleaner
•Soft brush

Parts Required

•Transmission fluid (manufacturer specified)
•Accelerator pedal position sensor (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential issues.
2
Check transmission fluid level and condition; look for signs of contamination or low levels.
3
Inspect the throttle body for carbon buildup or malfunction.
4
Test the accelerator pedal position sensor for proper voltage output.
5
Examine the transmission for any visible leaks or damage.
6
Verify that the air intake system is not obstructed or damaged.

Solution

1. Preparation

Gather the necessary tools and parts.
Ensure the vehicle is parked on a level surface and secured with wheel chocks.
Disconnect the battery to prevent any electrical shorts.

2. Check Transmission Fluid

Remove the transmission dipstick (if equipped).
Wipe it clean, reinsert, and then remove it again to check the fluid level.
If low, add the manufacturer's specified transmission fluid until the correct level is reached.
If the fluid is dark or smells burnt, a fluid change may be required.

3. Clean or Replace Throttle Body

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

4. Test Accelerator Pedal Position Sensor

Locate the accelerator pedal position sensor connector.
Using a multimeter, measure the voltage output while pressing the accelerator pedal.
If the readings are outside the manufacturer’s specifications, replace the sensor.

5. Check Transmission Operation

If the fluid is in good condition and the throttle body is clean, check the transmission for proper operation.
If the vehicle still does not accelerate, further diagnosis may be required, and consider consulting a transmission specialist.