why does my Ford Explorer's engine rev when I shift gears

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

496 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 engine revving issues during gear shifts in Ford Explorer. Step-by-step guide with diagnostic procedures 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 any components.

Symptoms

•Engine revs excessively during gear shifts
•Delay in the vehicle's acceleration response
•Unusual or harsh shifting sensations
•Check engine light illuminated
•Possible engine stalling after shifting

Diagnostic Steps

1
Scan the vehicle’s onboard computer for any error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the throttle position sensor (TPS) for proper function.
4
Examine the air intake system for any obstructions or leaks.
5
Test the accelerator pedal position sensor for proper input readings.
6
Check for vacuum leaks around the intake manifold and throttle body.

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
•Transmission fluid pump
•Fluid catch pan
•Screwdriver or socket set
•Multimeter

Parts Required

•Transmission fluid
•Throttle position sensor
•Accelerator pedal position sensor

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Diagnostic Steps

1
Scan the vehicle’s onboard computer for any error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the throttle position sensor (TPS) for proper function.
4
Examine the air intake system for any obstructions or leaks.
5
Test the accelerator pedal position sensor for proper input readings.
6
Check for vacuum leaks around the intake manifold and throttle body.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and the engine is off.
Gather necessary tools and parts.
Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick and remove it.
2. Check the fluid level; if low, add the recommended fluid type.
3. If the fluid appears dark or burnt, proceed to change it.
4. Remove the transmission pan (if necessary) to drain old fluid.
5. Replace the transmission filter if applicable.
6. Reinstall the pan and refill with new transmission fluid to the appropriate level.

Tools Required:

Socket set
Transmission fluid pump
Fluid catch pan

3. Replace Throttle Position Sensor (if faulty)

Sub-steps:
1. Locate the throttle position sensor on the throttle body.
2. Disconnect the electrical connector and remove the mounting screws.
3. Install the new throttle position sensor and secure it with screws.
4. Reconnect the electrical connector.

Tools Required:

Screwdriver or socket set

4. Test and Adjust Accelerator Pedal Position Sensor

Sub-steps:
1. Locate the accelerator pedal position sensor.
2. Disconnect the sensor and test it using a multimeter for correct voltage output.
3. Replace the sensor if readings are outside the specified range.
4. Reconnect the sensor and ensure it is properly aligned.

Tools Required:

Multimeter