why does my Ford Explorer Fifth Generation (2011-2019) have a delayed transmission shift

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

610 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 delayed transmission shift issues in Ford Explorer (2011-2019). 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 opening the radiator or working on the transmission.

Symptoms

•Delayed engagement when shifting from park to drive or reverse
•Slipping or rough shifting between gears
•Engine RPMs increase without corresponding acceleration
•Check engine light may illuminate
•Unusual noises during shifting (e.g., clunking or grinding)
•Poor fuel economy

Diagnostic Steps

1
Scan the vehicle's computer for any error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission fluid for leaks or signs of contamination.
4
Test the transmission control module (TCM) for proper operation.
5
Examine the throttle position sensor (TPS) for any malfunctions.
6
Inspect wiring and connectors related to the transmission for damage or corrosion.

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
•Screwdriver set
•Multimeter
•Fluid pump

Parts Required

•Ford-approved transmission fluid
•Transmission filter
•Gasket for transmission pan
•Throttle position sensor (if needed)
•Transmission control module (if needed)

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Diagnostic Steps

1
Scan the vehicle's computer for any error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission fluid for leaks or signs of contamination.
4
Test the transmission control module (TCM) for proper operation.
5
Examine the throttle position sensor (TPS) for any malfunctions.
6
Inspect wiring and connectors related to the transmission for damage or corrosion.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the negative battery terminal to prevent electrical shorts.
Ensure the vehicle is parked on a level surface and the engine is cool.

2. Check and Replace Transmission Fluid

Tools Required: Socket set, fluid pump, transmission fluid (Ford-approved type).
Sub-steps:
1. Locate the transmission fluid dipstick or fill plug.
2. Remove the dipstick or fill plug and check the fluid level.
3. If the fluid is low, add the appropriate type of transmission fluid using a fluid pump.
4. If the fluid is discolored or burnt, proceed to drain the transmission fluid.
5. Remove the transmission pan bolts using a socket set, then carefully lower the pan.
6. Replace the transmission filter if applicable.
7. Clean the pan and install a new gasket before reattaching the pan.
8. Refill the transmission with new fluid, ensuring the correct level is achieved.

3. Inspect and Replace Transmission Control Module (if necessary)

Tools Required: Screwdriver set, socket set.
Sub-steps:
1. Locate the TCM, which is typically found near the transmission or under the dashboard.
2. Disconnect the wiring harness from the TCM.
3. Remove the TCM mounting screws and carefully take out the module.
4. Install the new TCM by reversing the removal steps.
5. Reconnect the wiring harness and ensure all connections are secure.

4. Test and Calibrate Throttle Position Sensor (if necessary)

Tools Required: Multimeter.
Sub-steps:
1. Locate the throttle position sensor connected to the throttle body.
2. Disconnect the sensor and use a multimeter to test the voltage output.
3. If readings are out of specification, replace the TPS with a new one.
4. Reconnect the TPS and clear any diagnostic trouble codes.