how to fix my Ford Explorer’s transmission slipping

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

573 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

3-5 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 or working on fluid.

Symptoms

•Engine revs without corresponding increase in vehicle speed
•Delayed engagement when shifting from park to drive or reverse
•Unusual noises (grinding or whining) during shifting
•Check engine light may be illuminated
•Poor fuel economy
•Transmission fluid may be discolored or have a burnt smell

Diagnostic Steps

1
Check transmission fluid level and condition using the dipstick.
2
Scan the vehicle's computer for any trouble codes related to the transmission using an OBD-II scanner.
3
Inspect for any visible leaks around the transmission and under the vehicle.
4
Examine the transmission filter and pan for debris or clogs.
5
Test the transmission shift solenoids with a multimeter for proper operation.
6
Check the throttle position sensor and vehicle speed sensor for correct functioning.

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
•Torque wrench
•Multimeter
•Fluid pump

Parts Required

•Transmission filter
•New transmission fluid
•Gasket for transmission pan (if applicable)
•Transmission solenoids (if faulty)

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Symptoms

•Engine revs without corresponding increase in vehicle speed

•Delayed engagement when shifting from park to drive or reverse

•Unusual noises (grinding or whining) during shifting

•Check engine light may be illuminated

•Poor fuel economy

•Transmission fluid may be discolored or have a burnt smell

Diagnostic Steps

1
Check transmission fluid level and condition using the dipstick.
2
Scan the vehicle's computer for any trouble codes related to the transmission using an OBD-II scanner.
3
Inspect for any visible leaks around the transmission and under the vehicle.
4
Examine the transmission filter and pan for debris or clogs.
5
Test the transmission shift solenoids with a multimeter for proper operation.
6
Check the throttle position sensor and vehicle speed sensor for correct functioning.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is turned off.
Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick and remove it.
2. Check the fluid level; if low, top up with the manufacturer-recommended fluid.
3. If fluid is burnt or contaminated, proceed to change it.
4. Remove the transmission pan bolts using a socket set and carefully lower the pan.
5. Replace the old filter with a new one and clean the pan.
Tools Required: Socket set, fluid pump, new transmission filter, new transmission fluid.
Safety Warnings: Allow the engine to cool before working on the transmission.

3. Inspect and Replace Transmission Filter

Sub-steps:
1. Remove the transmission pan as described in the previous step.
2. Replace the old transmission filter with a new one.
3. Reinstall the pan using a new gasket. Tighten bolts to the manufacturer’s torque specifications.
Tools Required: Torque wrench, gasket scraper.

4. Test Transmission Solenoids

Sub-steps:
1. Unplug the electrical connector from the solenoids.
2. Use a multimeter to measure resistance according to specifications in a repair manual.
3. Replace any faulty solenoids with new ones.
Tools Required: Multimeter.

5. Reconnect Battery and Test Drive

Sub-steps:
1. Reconnect the battery terminals.
2. Start the vehicle and allow it to warm up.
3. Test drive the vehicle to assess any improvements in shifting performance.
Tools Required: None.