my Ford Explorer has an irregular shifting problem what could be wrong

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

542 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 irregular shifting issues in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the engine is cool before attempting to work on the transmission.

Symptoms

•Harsh or rough shifting between gears
•Delayed engagement when shifting from park to drive or reverse
•Engine RPMs rising without corresponding acceleration
•Transmission slipping or losing power during acceleration
•Check engine light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect transmission fluid level and condition (color and smell) to ensure it is at the proper level and not burnt.
3
Check for leaks in the transmission system, including seals and gaskets.
4
Test the transmission range sensor and throttle position sensor for proper operation using a multimeter.
5
Inspect the wiring and connectors to the transmission for damage or corrosion.
6
Perform a road test to evaluate shifting performance under various driving conditions.

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
•Multimeter
•Torque wrench
•Drain pan

Parts Required

•Transmission fluid
•Transmission filter
•Transmission range sensor
•Throttle position sensor

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect transmission fluid level and condition (color and smell) to ensure it is at the proper level and not burnt.
3
Check for leaks in the transmission system, including seals and gaskets.
4
Test the transmission range sensor and throttle position sensor for proper operation using a multimeter.
5
Inspect the wiring and connectors to the transmission for damage or corrosion.
6
Perform a road test to evaluate shifting performance under various driving conditions.

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 during electrical work.

2. Fluid Change

Sub-steps:
1. Locate the transmission pan and drain plug.
2. Place a drain pan under the transmission and remove the drain plug to drain old fluid.
3. Remove the transmission pan bolts using a socket set and carefully lower the pan.
4. Replace the transmission filter if applicable, ensuring the new filter is correctly seated.
5. Clean the transmission pan and apply a new gasket or sealant as needed.
6. Reinstall the transmission pan and tighten bolts to the manufacturer’s specified torque.
7. Refill the transmission with the correct type of fluid via the dipstick tube, checking the level frequently.

3. Sensor Inspection and Replacement

Sub-steps:
1. Locate the transmission range sensor and throttle position sensor.
2. Disconnect the electrical connectors and remove any mounting fasteners.
3. Install the new sensors in the reverse order of removal, ensuring proper alignment.
4. Reconnect the electrical connectors securely.

4. Electrical System Check

Sub-steps:
1. Inspect wiring harnesses and connectors for any signs of wear, corrosion, or damage.
2. Repair or replace any damaged wiring or connectors.
3. Use a multimeter to test the voltage supply to the transmission control module, ensuring it is within specifications.