why is my Ford Explorer transmission slipping when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

588 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 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 opening the transmission.

Symptoms

•Transmission slips during acceleration
•Unusual engine revving without corresponding vehicle speed increase
•Delayed or harsh shifting between gears
•Check engine light illuminated
•Fluid leaks under the vehicle
•Burning smell from the transmission area

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check the transmission fluid level and condition; look for discoloration or a burnt smell.
3
Inspect the transmission filter for clogs or blockages.
4
Examine the transmission fluid lines and cooler for any leaks or damage.
5
Test the transmission solenoids and wiring for proper function using a multimeter.
6
Perform a road test to verify the slipping issue 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
•Funnel

Parts Required

•Transmission fluid (specific type for Ford Explorer)
•Transmission filter
•Gasket for transmission pan

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check the transmission fluid level and condition; look for discoloration or a burnt smell.
3
Inspect the transmission filter for clogs or blockages.
4
Examine the transmission fluid lines and cooler for any leaks or damage.
5
Test the transmission solenoids and wiring for proper function using a multimeter.
6
Perform a road test to verify the slipping issue under various driving conditions.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is on a level surface and secure it with jack stands if needed.
Disconnect the battery to prevent any electrical issues during repair.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and check fluid level.
2. If low, add the recommended fluid (consult owner's manual for specifications).
3. If fluid is dirty or burnt, proceed to change the fluid.
Tools Required: Funnel, transmission fluid (specific type for Ford Explorer).

3. Replace Transmission Filter

Sub-steps:
1. Remove the transmission pan bolts using a socket wrench.
2. Carefully lower the pan and drain the fluid into a suitable container.
3. Remove the old filter and install the new filter in the same position.
4. Clean the transmission pan and gasket surface; install a new gasket.
5. Reattach the transmission pan and torque the bolts to manufacturer specifications.
Tools Required: Socket set, gasket scraper, torque wrench.

4. Inspect and Repair Transmission Solenoids

Sub-steps:
1. Locate the transmission solenoids (usually accessible after removing the transmission valve body).
2. Disconnect the electrical connectors and remove the solenoid assembly.
3. Test the solenoids with a multimeter for proper resistance; replace if faulty.
4. Reinstall the solenoids and reconnect the wiring.
Tools Required: Multimeter, socket set.

5. Refill Transmission Fluid

Sub-steps:
1. Using a funnel, refill the transmission with the correct type and amount of fluid.
2. Start the engine and let it run for a few minutes, then cycle through the gears.
3. Check the fluid level again and add more if necessary.
Tools Required: Funnel, transmission fluid.